Adoption and Diffusion of Agroecological Practices in the Horticulture of Catalonia

: The environmental impact of conventional food production systems imposes a rapid transition towards sustainable production systems through the adoption of agroecological practices. The barriers and accelerators of the adoption of agroecological practices were identiﬁed for horticultural crops in Catalonia. Eight interviews and thirty surveys were conducted with local producers. Results show that the loss of producer income and the lack of social awareness regarding organic products are among the important barriers to the adoption of agroecological practices, while information about the experience of other farmers is considered a motivational factor. Finally, the study concludes that the adoption of agroecological practices has economic, political, social, academic and agronomic components.


Introduction
Agroecology is a type of agriculture which appeared at the end of the last century with the objective of providing an alternative to conventional agriculture (that is, agriculture which favors destruction of the circular economy and the loss of biodiversity [1]). Hallmarks of organic farming include: the use of biological control to treat pests and diseases, and of organic amendments, livestock and/or plant remains to fertilize the fields; direct seeding or minimum tillage to reduce the loss of soil through erosion and increase biodiversity, soil fertility and the content of organic matter in the soil; increased crop application of coverage and use of microorganisms to help the plant absorb nutrients in the soil with greater ease, in order to strengthen the plant against pests and diseases and thus increase yields; and application of genetics to extract more climate-resistant cultivable species with high yields under changing climatic conditions involving drought, saline soils, pests and diseases, etc. In addition, the application of genetics allows for diversification and crop rotation, which are the two fundamental pillars of agroecology.
According to Róger [2], agroecology is a scientific discipline which gathers, synthesizes and applies knowledge from agronomy, ecology, sociology and ethnobotany, and with a holistic and systemic ethics; therefore, it is an agricultural system which provides a rational ecological base for the management of the agroecosystem through innovative production technologies, stable and highly adaptable to the environment and society. Wezel et al. [3] classified agroecological practices according to the level of integration that the crops have and depending on the degree of implementation they have. According to them, the integration of organic fertilization, cover crops, irrigation by drip and biological pest control, among others, have already reached an average level of integration into current agriculture and have high potential for wider application in the next decade, already benefiting from a good scientific knowledge; however, the integration of allelopathic plants, biofertilizers, agroforestry systems and the management of landscape elements at scale ical practices in the horticulture of Catalonia; (ii) to assess farmers' intentions to adopt agroecological practices; (iii) to describe the profile of potential adopters of agroecological practices; and (iv) to understand the most relevant barriers and drivers. To reach these objectives, interviews and surveys were conducted among a group of farmers in Catalonia.
Literature showed that the adoption of agroecological practices is determined by a series of barriers and motivations [11]. Horrillo et al. [12] showed how organic farms are not economically profitable for farmers. Horrillo et al. [13] also reported that organic livestock farms could be economically remunerated for the ecosystem services they provide to society, especially when their net CO 2 balance is negative. Dessart et al. [14] classified the behavioral factors that affect the decision to adopt or not adopt agroecological practices as dispositional (personality, motivations, values, beliefs, preferences, goals), social (interactions, social norms, signaling motives) and cognitive (learning, reasoning, perceptions of benefits, costs and risks). Pearce et al. [15] and Damalas et al. [11] indicated that the variation in pesticide use among farmers is associated with a set of factors including low level of internal inputs, market demand, the presence of pests and diseases, the need to produce food in abundance, the pursuit of the greatest financial benefit, the adoption of methods of organic farming, the efficacy of pesticides, and concerns about pesticide exposure and environmental pollution. Horrillo et al. [16] identified the stagnation of sales, the lack of self-sufficiency in organic feed and the difficulty of access to organic certified slaughterhouses as relevant barriers to the transition from a conventional farm to an organic system.
Runhaar et al. [17] identified age, sex, social and educational level, knowledge and experience of the farmer, as well as the size of the farm as variables which affect the willingness of farmers to adopt innovative practices. Hashemi and Damalas [18] highlighted the importance of such factors as the perception of pesticide safety and knowledgeable experience of pest integration methods in the decision of farmers to adopt or not adopt alternatives to conventional agricultural practices.
Other authors [17] highlighted the role of factors such as motivations, information, social context, government agreements, demand, particular skills and abilities of implementation, legitimization, the holistic framework which integrates personal and contextual factors, and the multidisciplinary framework (nature conservation and factors that stimulate behavior change) in the decision to adopt sustainable alternatives by farmers. For example, some authors [19,20] investigated farmers' intention to adopt new soil conservation practices focusing on variables such as biophysical, economic, social, regulatory and institutional conditions (Table 1).
To adopt a new practice, a farmer should be sure of the steps he or she is going to take, so he or she should know if he or she can receive financial aid, if the crop is going to be profitable [21] and should also know the new practices and products. He or she also needs to have knowledge, awareness, attitude and perception of the risks associated with these practices [22]. Another very important factor is the prior adoption of ecological practices by other farmers who can positively influence those who have not yet taken the decision to switch to agroecological practices.

Authors Subject Barriers Solutions
Keulemans (2019) Can we grow without the use of herbicides, fungicides and insecticides?
For increased performance: acidification; The loss of biodiversity; Soil erosion; the eutrophication of superficial water. Reduction of active substances→higher resistances→decrease in the effectiveness of the products→higher losses. Longer time required to get a new product; Sub-optimal factors: fertilizers, adapted varieties, irrigation, other techniques of crops; Difficulty relating the use of phytosanitary products with performance through experimental and quantitative data; Unclear and imprecise media communication; Lack of knowledge of diseases or pests and of the impact of these by agronomists, advisers or farmers; The MIP incorporates a wide range of practices, but does not establish explicitly the degree of reduction of APP at farm level; Little/Low accuracy on whether the greater biodiversity in organic agriculture is due to the management of biopesticides or the low performance.
To bridge the gap: Promote sustainable intensification of agriculture; reduce losses and food waste; Change diet; Prohibit crop production for bioenergy; Give an optimized use of phytosanitary products.

Damalas and Koutroubas (2017)
The training in the use of pesticides associated to safety behavior Low acceptance of training on pesticides and job aging; Limited studies on the relevance and effectiveness of the training; Lack of educational guides for treating the destruction of beneficial insects; Problems: Spray more often and at a higher dose; Factors (1 and 2) to evaluate the training by any means available: The decision making (1) and To design most effective training components (2).
Increase awareness of alternative pest control practices with less pesticide use.

Clark and Tilman (2017)
Comparative Analysis of environmental impacts of the system of agricultural production, efficiency of the agricultural inputs and choice of food.
The limitation focused on food of animal origin or a single environmental indicator; the comparative environmental impacts of control practices with a lower use of pesticides.
Apply management technologies and techniques to increase the efficiency of agricultural inputs through: agriculture of precision, conservation tillage and cover crop, feed intake in livestock systems: use of agricultural waste and by-products; Interventions to reduce future environmental impact aspects of agriculture: adoption of low-meat diets in countries with excessive meat consumption, increase sustainable yields of crops and reduce waste of food; Implementation of initiatives and policies in education designed to increase the adoption of low-fat food impacts, of less impact on production systems and systems with high efficiency of agricultural inputs.

Materials and Methods
In this work, two research techniques were combined including a qualitative method (interviews) and a quantitative technique (questionnaire). The purpose of the interviews with the farmers was to extract ideas which would feed the preparation of the questionnaire. In total, eight farmers were interviewed in the province of Barcelona. The farmers interviewed mostly practiced traditional horticulture. Three of the eight farmers were engaged in fruit growing; two were from conventional agriculture and one from ecological agriculture. The interviews were planned to be conducted physically in the field; however, we were forced to carry out these interviews via telephone due to the restrictions imposed by the authorities to reduce the propagation of COVID-19.
Based on the interviews and the literature review, a first survey was carried out as a pilot test. The pilot test was carried out with ten farmers from different sectors in order to correct errors, refine the questions, and identify important aspects not included in order to take them into consideration, as well as to estimate the average time required to complete the survey. Subsequently, we proceeded to the realization and shipment (via email) of the final survey. For data collection, we proceeded to contact farmers, companies and public and private institutions in the agri-food sector such as cooperatives, ADVs (Groups of Plant Defense of Catalonia), associations and universities. It took two months to collect the 30 surveys. This delay was due to the fact that the months of collecting data coincided with the full harvest period.
The interview script consisted of open or semi-open questions. For example, the first question consisted of finding out the characteristics of the farm and the farmer (cultivable hectares, farmer's age, number of family members who are engaged in agricultural exploitation, number of workers, etc.) and what type of agriculture they practice and the type of crops they cultivate. The following questions were dedicated to extracting information about whether they adopted (or not) agroecological practices and why. To do this, they were asked directly if they had ever adopted any agroecological practice and what type, and if they had done it with or without aid, what type of barriers and/or motivations they had in adopting these practices, if they plan to adopt (or not) agroecological practices in the future and why. Finally, we asked them whether they will continue using the same production system after the COVID-19 crisis or if they plan to switch to agroecological or more sustainable practices and why.
The survey was designed focusing on aspects related to the adoption (or not) of agroecological practices by farmers (conventional and/or organic) and what factors affect this adoption. The survey was divided into 11 sections: (1) Characteristics of the farm; (2) Agroecological practices adopted until now; (3) Barriers to agroecological practices; (4) Accelerators of the adoption of agroecological practices; (5) Perception of the benefits of agroecological practices; (6) Intention to adopt agroecological practices in the future; (7) Trust in the different sources of information on agroecological practices; (8) Attitudes (preferences) to risk; (9) Attitudes towards the environment; (10) Perception of exposure to and risk from chemicals; and (11) Sociodemographic characteristics.
To measure the Attitudes towards the environment, we used the new reduced version of the Ecological Paradigm scale (NEP-R). Farmers were required to indicate their level of agreement with the statements in a 5-point scale (from 1 'Strongly disagree' to 5 'Strongly agree'). This scale allowed us to segment farmers into ecocentric and/or anthropocentric groups.
Data analysis was performed with the SPSS statistical program. We started with some descriptive analyses, which we represented in figures and tables. A factor analysis was carried out with the objective of reducing the elements of the environmental attitudes scale (NEP-R). Finally, bivariate analyses were carried out to describe the relationship between the variable "intention to adopt agroecological practices in the future" and various characteristics of the farmers and their farms, in order to identify the profile of potential adopters of agroecological practices in the future. The relationships between the variables are represented in figures. These analyses were performed using statistical tests (analysis of variance and Tukey) in order to detect which groups of farmers were more susceptible to adopting agroecological practices. It was not possible to conduct some multivariate analyses due to small size of the sample we used.

Results
The results are presented in the following way: first we describe the results from the interviews, then we reported the results from the surveys. Those from the surveys are divided into the following sections: (1) Characteristics of farmers and their farms; (2) Level of knowledge, perceptions and farmers' attitudes towards pesticides and agroecological practices; (3) Main barriers, accelerators and perceptions of the adoption of agroecological practices; (4) Results related to the adoption of agroecological practices (profile of farmers who are potential adopters of agroecological practices in the future).
The results related to the interview are divided into: agroecological practices already adopted, barriers to the adoption of agroecological practices and accelerators of the adoption of these practices. Regarding the already adopted agroecological practices, the most indicated practices were: Do not abuse the land; Try to maintain high soil conservation in terms of low tillage and promoting biodiversity by leaving vegetation cover; Do not pretend to substitute ones' inputs for others but then decrease them; Seek the balance between plant-soil-adventitious herbs; Change agricultural practices to improve the health of cultivated plant species. The most cited barriers to the adoption of agroecological practices were: the lack of advice and technical support for the conversion to agroecology; the lack of agroecological training for farmers; the lack of knowledge on the application of biopesticides; the lack of research on new phytosanitary products; the lack of citizen awareness; and, Difficulty in the control of MH without herbicides, among others. Regarding the accelerators, the most cited are: the possibility of introducing technological innovation in organic production methods; Payment for the product at a fair price; Farmers' ecological groups to support each other and facilitate the transfer of knowledge of agroecological practices; Maintaining or increasing the viability of crops; Obtaining support and social recognition for the farmer's ecological work; Offering quality; Experimentation on their own farm with effective and more respectful methods with the environment; Gratification of success, etc. The results related to the survey are subdivided into:

Characteristics of Farmers and Their Farms
In Figure 1 it can be seen that 30% and 27% of respondents belong to the horticultural sector and extensive crops (cereal, hops, etc.), respectively. Furthermore, 27% of the farmers have exploitations of 3 to 5 ha, while 20% cultivate exploitations of 6 to 10 ha. Some 43%

Characteristics of Farmers and Their Farms
In Figure 1 it can be seen that 30% and 27% of respondents belong to the horticultural sector and extensive crops (cereal, hops, etc.), respectively. Furthermore, 27% of the farmers have exploitations of 3 to 5 ha, while 20% cultivate exploitations of 6 to 10 ha. Some 43% of farmers cultivate family exploitation, while 28% rent their exploitations. The surveyed farmers ranged between 41 to 60 years of age.

Level of Knowledge, Perceptions and Attitudes of Farmers towards Pesticides and Agroecological Practices
Farmers understood by agroecological practices those agricultural practices which are ecological and meet the daily demands of exploitation while enhancing the natural processes of crops' defense. They are environmentally friendly practices which maximize ecosystem services. It is also a symbiosis between profitability and sustainability. Agroecological practices are those that allow food to be produced without using pesticides from chemical synthesis, neither herbicides nor transgenics, maintaining the regenerative capacity of the soil (its fertility) and the ecosystem's biodiversity. Producing agroecologically is producing with care and respect, living together in harmony with the environment and its natural surroundings. On the other hand, the farmers most reluctant to change practices commented that using agroecological practices is simply going from

Level of Knowledge, Perceptions and Attitudes of Farmers towards Pesticides and Agroecological Practices
Farmers understood by agroecological practices those agricultural practices which are ecological and meet the daily demands of exploitation while enhancing the natural processes of crops' defense. They are environmentally friendly practices which maximize ecosystem services. It is also a symbiosis between profitability and sustainability. Agroecological practices are those that allow food to be produced without using pesticides from chemical synthesis, neither herbicides nor transgenics, maintaining the regenerative capacity of the soil (its fertility) and the ecosystem's biodiversity. Producing agroecologically is producing with care and respect, living together in harmony with the environment and its natural surroundings. On the other hand, the farmers most reluctant to change practices commented that using agroecological practices is simply going from having a conventional farm to an ecological one with agricultural practices following the regulations of the CCPAE, or even that it is a scam since producing this way would require more time and inputs to have pathogen-free plants. Furthermore, for those who do ornamental farming it is very difficult for them to carry out agroecological practices. The level of knowledge that the farmers had about the aspects of agroecological practices, shown in Figure 2 were valued using a scale that goes from 1 (not informed) to 7 (very informed). The results show that farmers had a good level of knowledge about all aspects of agroecological practices. The aspects best known by farmers were the "cost of adopting agroecological practices", "Crop rotation", "crop diversification" and the general concept of "agroecological practices". The aspect that received the lowest valuation was "the production of agro-ecological products". Therefore, farmers need more information about the agroecological production system. having a conventional farm to an ecological one with agricultural practices following the regulations of the CCPAE, or even that it is a scam since producing this way would require more time and inputs to have pathogen-free plants. Furthermore, for those who do ornamental farming it is very difficult for them to carry out agroecological practices. The level of knowledge that the farmers had about the aspects of agroecological practices, shown in Figure 2 were valued using a scale that goes from 1 (not informed) to 7 (very informed). The results show that farmers had a good level of knowledge about all aspects of agroecological practices. The aspects best known by farmers were the "cost of adopting agroecological practices", "Crop rotation", "crop diversification" and the general concept of "agroecological practices". The aspect that received the lowest valuation was "the production of agro-ecological products". Therefore, farmers need more information about the agroecological production system. 53% of farmers had very little information on agrochemicals, 57% of farmers had very little information on the negative health effects of agrochemicals and, as Figure 3 shows, 83% of farmers affirmed that agrochemicals are a health risk.  53% of farmers had very little information on agrochemicals, 57% of farmers had very little information on the negative health effects of agrochemicals and, as Figure 3 shows, 83% of farmers affirmed that agrochemicals are a health risk. In Figure 4 we can see how the media that offer farmers more information about the agrochemicals and their possible negative consequences on health are: 'agrochemical labels' with 28% of the respondents, 'Internet' with 25% and participation in 'Courses' with 17%. 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% No I do not know Yes Figure 3. Percentage of farmers who affirm or deny that agrochemicals are a health risk.
In Figure 4 we can see how the media that offer farmers more information about the agrochemicals and their possible negative consequences on health are: 'agrochemical labels' with 28% of the respondents, 'Internet' with 25% and participation in 'Courses' with 17%. In Figure 4 we can see how the media that offer farmers more information about the agrochemicals and their possible negative consequences on health are: 'agrochemical labels' with 28% of the respondents, 'Internet' with 25% and participation in 'Courses' with 17%.

Main Brakes, Accelerators and Perceptions in the Adoption of Agroecological Practices
In Figure 5 it can be seen that the most important brakes/barriers for farmers when it comes to adopting agroecological practices are: "Loss of producer income", "Lack of social awareness regarding the production of ecological products", "Low prices at origin and/or market", and "lack of agroecological training, technical and research advice". On the other hand, we have the less important barriers such as "low diversity organic products", "the economic situation does not allow to put agroecology into practice", and the "type of soil and relief of the farm". Thus, farmers tend to give more importance to those barriers that are more focused on the economic field (related to aid and payment for product), social

Main Brakes, Accelerators and Perceptions in the Adoption of Agroecological Practices
In Figure 5 it can be seen that the most important brakes/barriers for farmers when it comes to adopting agroecological practices are: "Loss of producer income", "Lack of social awareness regarding the production of ecological products", "Low prices at origin and/or market", and "lack of agroecological training, technical and research advice". On the other hand, we have the less important barriers such as "low diversity organic products", "the economic situation does not allow to put agroecology into practice", and the "type of soil and relief of the farm". Thus, farmers tend to give more importance to those barriers that are more focused on the economic field (related to aid and payment for product), social (the ecological product or the production of organic products is not fully assimilated by the consumer), academic (lack of knowledge on the norms and use of ecological pesticides and advice by technicians) than those of an agronomic type (typology and soil relief, new varieties adapted to the conditions of the area, yields, etc.).
In reference to accelerators when adopting agroecological practices the most notable for the farmers were: to "Know experiences of other farmers", the "Rigor of legislation and product ecological standards" and a "favorable cultural environment to motivate the adoption of agroecological practices". Receiving the lowest rating was "Government Support (Grants)". Therefore, farmers demanded more rigorous exterior and interior policies in which the adoption of agroecological practices are favored. In addition, knowing the experiences of other farmers who practice organic farming is of vital importance since amongst themselves they understand each other much better than, for example, the administrators. Thus, exchanging experiences between groups of farmers in a specific area would facilitate the transfer of knowledge in agroecological matters, thus facilitating the adoption of these practices ( Figure 6). The benefits most perceived by farmers are "Agroecology reinforces the health and well-being of the soil, environment consumer", "Agroecology allows to protect and/or conserve ecosystems", "Agroecology reduces environmental deterioration" an incorporates ancestral values and knowledge of an avant-garde character". The aspects that received the lowest valuation wer increases sovereignty of the farmer", "Agroecology allows the generation of medium-high benefits", "Agroecology eliminates h The benefits most perceived by farmers are "Agroecology reinforces the health and well-being of the soil, environment, producer and consumer", "Agroecology allows to protect and/or conserve ecosystems", "Agroecology reduces environmental deterioration" and "Agroecology incorporates ancestral values and knowledge of an avant-garde character". The aspects that received the lowest valuation were "Agroecology increases sovereignty of the farmer", "Agroecology allows the generation of medium-high benefits", "Agroecology eliminates hunger, poverty and negative consequences for the environment", "Government support" and "Agroecology empowers the farmer set the final price of the product". Therefore, farmers were clear that agroecology is not only based on the production of food without the use of synthetic chemical pesticides, but rather puts includes the value the ecosystem of the farm, that of its surroundings and that of the planet, thus contributing to the reduction of pollution and environmental deterioration. Besides, agroecology can be one of the agricultures of the future, with great weight in the development and research of new phytosanitary products of animal or natural origin for the control of pests and diseases. On the other hand, they did not see clearly that agroecology will allow them to have sovereignty over their products and ways of doing agriculture, or that it will be a practice that contributes to eradicating hunger in the world (Figure 7).

Results Related to the Adoption of Agroecological Practices
The agroecological practices most adopted by farmers so far are "Organic fertilization", the "Reduction of the use of inputs harmful to the environment", "Conservation agriculture", "Biological control of pests", "Drip irrigation", "Split fertilization" and "Choice of crops and rotations". This is shown in Table 2. With respect to the intention to adopt agroecological practices in the future, with an average adoption of 5.07, 40% show a high probability of adoption. In the short term, the most adopted practices will be: "Reduction of the use of inputs harmful to the environment", "Drip irrigation of crops", "Effective management of nutrients and biomass", and "Conservation Agriculture". In the medium term they will be the "Elimination of synthetic chemical pesticides", the "Choice of crops and rotations", the "Reduction of the use of inputs harmful to the environment" and "Tillage 0"; and, in the long term, the "Use of the soil's own organisms", the "Use of crops resistant to any stress", the "Use clean and efficient technologies", among others and will never be: "Agroforestry", "Tillage 0", "Divided fertilization", etc.

Profile of Potential Farmers Adopting Agroecological Practices in the Future
At this point, the variable "Intention to adopt agroecological practices in the future" was measured on a scale from 1 to 7, with the characteristics of the farmers and their farms. The graphs shown below were where the variable "intention to adopt" was statistically higher. Therefore, those farmers who had a higher intention to adopt agroecological practices in the future are those who engage in other types of sectors, that is, fruit and vegetable crops, extensive crops and vineyards as compared to horticultural and fruit crops (Figure 8), those who practice conventional and integrated agriculture compared to organic (Figure 9), those with a cultivable area of 11ha compared to those who have fewer ha (Figure 10), those who have more experience in the adoption of agroecological practices compared to those who have the least (Figure 11), those who have a lot of confidence in the different sources of information exposed in the questionnaire (Government, Producers, Associations or cooperatives of producers, Universities, Media (Newspapers, TV, radio), Neighboring producers or friends, Family, friends, colleagues, Social networks (Twitter, Facebook, etc.), and the EU) (Figure 12), those who have a lot of information with regard to agrochemicals compared to those who have little (Figure 13), and those who have a high concern for the health effects of agrochemicals ( Figure 14). compared to those who have the least (Figure 11), those who have a lot of confidence in the different sources of information exposed in the questionnaire (Government, Producers, Associations or cooperatives of producers, Universities, Media (Newspapers, TV, radio), Neighboring producers or friends, Family, friends, colleagues, Social networks (Twitter, Facebook, etc.), and the EU) (Figure 12), those who have a lot of information with regard to agrochemicals compared to those who have little (Figure 13), and those who have a high concern for the health effects of agrochemicals ( Figure 14).          Probability of adopting agroecological practices in the future depending on degree of concern for the effects of agrochemicals.

Discussion
The results show that the main obstacles to the adoption of agroecological practices are focused on the economic sphere and are related to subsidies and low prices received for product at origin, coinciding with the results of other studies [11,14,19]. Other obstacles include social (organic products not fully assimilated by consumers), political (lack of attention on the part of institutions, as in [20]), academic (lack of knowledge of the norms around the use of ecological pesticides and access to advice by technicians that is essential to avoiding problems at the time of adoption [11,15,23]), and agronomic (typology and soil relief, new crop varieties not adapted to the conditions of the area, low yields of organic farming); all of these coincide with the results of other studies [14,20,24]. On the other hand, farmers do not see clearly that agroecology can allow them to have sovereignty over their products and ways of doing agriculture, or that its contribution is Little concern High concern 11 (NOT LIKELY); 7 (VERY LIKELY) Figure 14. Probability of adopting agroecological practices in the future depending on degree of concern for the effects of agrochemicals.

Discussion
The results show that the main obstacles to the adoption of agroecological practices are focused on the economic sphere and are related to subsidies and low prices received for product at origin, coinciding with the results of other studies [11,14,19]. Other obstacles include social (organic products not fully assimilated by consumers), political (lack of attention on the part of institutions, as in [20]), academic (lack of knowledge of the norms around the use of ecological pesticides and access to advice by technicians that is essential to avoiding problems at the time of adoption [11,15,23]), and agronomic (typology and soil relief, new crop varieties not adapted to the conditions of the area, low yields of organic farming); all of these coincide with the results of other studies [14,20,24]. On the other hand, farmers do not see clearly that agroecology can allow them to have sovereignty over their products and ways of doing agriculture, or that its contribution is key to the eradication of hunger in the world. Horrillo et al. [12] showed that the production cost of ecological farms is high and highlighted the need for ecological farms to be compensated with subsidies for their contribution to territorial and biodiversity conservation and the provision of ecosystem services. Horrillo et al. [13] also reported that ecological livestock production is a sustainable model which benefits society by providing several ecosystem services, including carbon sequestration. They suggested that the imposition of a tax on CO 2 emissions will benefits ecological farms, improving their incomes.
Potential accelerators of the adoption of agroecological practices identified by farmers include the demand for more rigorous foreign and domestic policies in which they favor the adoption of such practices as good planning and policy management [14], and for the opportunity to learn about the experiences of other farmers who practice organic farming in specialized centers for the transfer of knowledge in agroecological matters. This, compared to the transfer of knowledge through public and/or private institutions, would guarantee greater successful adoption of agroecological practices due to the simple fact that there is greater trust among farmers. The lack of knowledge transfer is linked to the lack of stimulation to learn new agricultural practices [11,15,20].
The most adopted agroecological practices by farmers are: organic fertilization (reducing the use of inputs harmful to the environment), conservation agriculture, biological pest control, drip irrigation, divided fertilization (fertilization according to the demands of the crop and the growing period), choice of crops resistant to biotic and abiotic actions of the environment, and crop rotation. Other techniques adopted are cultivating according to the calendar and cycle moles, practicing solarization (a physical strategy to control soil pathogens), use of plastics to avoid water losses and reduce the use of herbicides, use of long-life boxes in the handling and sale of products, and the use of farm birds to combat pathogenic insects.
On a scale from 1 (Not at all likely) to 7 (Very likely), the intention to adopt agroecological practices in the future stands at an average of 5.07 points. Regarding the above, 60% of the farmers indicated a below average intention to adopt, which indicates that more than half are not considering adopting. However, the intentionality of adoption deepened for the choice of agroecological practices in the short, medium and long term. Therefore, the agroecological measures most adopted in the short term have been the reduction of the use of inputs that are harmful to the environment, drip irrigation of crops, effective nutrient and biomass management, and conservation agriculture; in the medium term, the elimination of synthetic chemical pesticides, the choice of resistant crops and rotations of crops, reducing the use of inputs harmful to the environment, and tillage 0; and, in the long term, taking advantage of the soil's own organisms, the use of stress-resistant crops, the use of clean and efficient technologies, and not depending 100% on external inputs from the farm.
Farmers, in general, have little confidence in the main sources of information on agroecological practices. The most prominent sources on the part of the farmers are "Family, friends, colleagues", other "producers" and "University".
The surveyed farmers who are dedicated to extensive crops, fruit and vegetables and integrated production have an intention to adopt agroecological practices in the future greater than those dedicated to horticulture and fruit culture. The same happens with conventional farmers and integrated production compared to ecological production; those with more than 11 arable hectares of land compared to those with less than 11 hectares; those who have already adopted more agroecological practices compared to those who have not; those who most trust the different sources of information on agroecological practices compared to those who least trust these sources of information; furthermore, farmers who feel highly informed about agrochemicals are more likely to adopt agroecological practices in the future (contrary to [9]), as are those very concerned about the negative effects of agrochemicals on the health compared to less concerned farmers.
The potential farmer adopting agroecological practices in the future can be described as: a farmer who is dedicated to the cultivation of cereals, fruits and vegetables and a practitioner of integrated production, with a background in conventional or integrated agriculture, who has more than 11 cultivable hectares, relies on different sources of information related to agroecology, has high experience with agroecological practices, and feels very informed about agrochemicals and very concerned about the negative effects they may have on both the health of the population and the environment. Parra López and Calatrava Requena [25] reported that compared to conventional growers, organic growers are younger, with a part-time dedication to agriculture, with less productive orchards, more involved in management and administration of the holding and more informed about organic agriculture. Läpple and Van Rensburg [26] showed that early adopters were the youngest to adopt organic farming. Djokoto et al. [27] found that being male, being from a smaller household and having access to credit was correlated with a tendency towards adopting organic cocoa production. According to Ashari et al. [28], the information and knowledge, economic and financial resources, technical and management skills, social aspects, environmental concern, institutional environment, and socio-economic and demographic characteristics of farmers are the key factors of organic farming adoption. Lohr and Salomonson [29] and Pietola and Lansink [30] demonstrated the role of subsidies in encouraging farmers to adopt organic conversion.

Conclusions
In general, farmers need to be provided with more information about the agroecological production system through means closer to them such as friends, other producers in the same sector, university trials in experimental fields and that these belong to an organic producer because this way it will serve as an example to gain a certain positive perspective for adopting agroecological practices.
On the other hand, there is no significant difference in the intention to adopt agroecological practices in the future among the farmers who have been working in the agricultural sector for more than 20 years and those who have been working in the agricultural sector for less than 20 years, among the farmers who have family or rental farms and those who have concession and/or purchase farms, among those who have indicated a greater number of barriers to the adoption of agroecological practices and those that have indicated a lower number of barriers, among farmers who perceive many benefits of adopting agroecological practices in the future and those who do not perceive or perceive few benefits, among risk-disliking farmers and risk-takers, among highly productive farmers environment and those who are not so protective of the environment, among farmers whose age is higher than the average age of the sample (48 years) and farmers whose age is lower than the mean age of the sample, and there is no difference in the intention to adopt agroecological practices in the future among men and women; nor among those who say that agriculture is or is not the only source of income their household receives. There is also no significant difference in the intention to adopt agroecological practices among those with university and secondary education and those with primary or simple studies.
With all the data collection, the profile of the potential farmer adopting agroecological practices in the future can be described as: farmer who dedicates to the cultivation of cereals, fruits and vegetables and a practitioner of integrated production, from conventional and integrated agriculture, who has more than 11 cultivable hectares, relies on different sources of information that provide information related to agroecology, with high experience with agroecological practices, feels very informed about agrochemicals and very concerned about the negative effects they may have on both the health of the population and the environment.
Producing in an ecological way implies higher production cost which forces farmers to sell the resulting product at higher prices than conventional ones. Consumers interest in organic products in increasing, however, the prices are a barrier. So, policymakers should support economically farmers paying them for the ecosystem services they provide to society. Our findings are in line with the theory. Farmers' knowledge and familiarity with the agroecological practices should be increase through informative campaigns; training and education. Farmers' access to technologies innovations should be guaranted. Consumers' awareness and knowledge should be also improved.
The present study is an exploratory study where a small sample size of farmers was used. This is the main limitation of this study. Future research should use the findings of the present study as a basis for more extended studies with a large and representative samples. Future research should also extend the research to more sectors. It will be interesting to estimate a model based on the Theory of Planned Behavior to better explain farmers' intention to adopt agroecological practices.