Next Article in Journal
An Arable Field for Benchmarking of Metaheuristic Algorithms for Capacitated Coverage Path Planning Problems
Next Article in Special Issue
Long-Term Fertilization Affects Soil Microbiota, Improves Yield and Benefits Soil
Previous Article in Journal
The Effects of Organic and Mineral Fertilization on Soil Enzyme Activities and Bacterial Community in the Below- and Above-Ground Parts of Wheat
Previous Article in Special Issue
Long-Term Effect of Manure and Mineral Fertilizer Application Rate on Maize Yield and Accumulated Nutrients Use Efficiencies in North China Plain
Open AccessArticle

Fertigation of Maize with Digestate Using Drip Irrigation and Pivot Systems

1
Department of Agricultural and Environmental Sciences, University of Milan, Via Celoria 2, 20133 Milano, Italy
2
Department of Soil and Irrigation, Agrifood Research and Technology Centre of Aragon (CITA), Avda. Montañana 930, 50059 Zaragoza, Spain
*
Author to whom correspondence should be addressed.
Agronomy 2020, 10(10), 1453; https://doi.org/10.3390/agronomy10101453
Received: 22 August 2020 / Revised: 18 September 2020 / Accepted: 21 September 2020 / Published: 23 September 2020
Digestate is a nutrient-rich fertilizer and appropriate techniques are required for its application during the maize season to reduce losses and increase the nitrogen use efficiency (NUE). The performance of two different fertigation techniques (drip irrigation and pivot) were assessed using the digestate liquid fraction. A two-year field test was carried out at two different sites in Lombardy, northern Italy. At each site, fertigation with pivot (P-F, site 1) or drip (D-F, site 2) systems was compared to reference fields where the same irrigation techniques without addition of digestate were used. During the two seasons, the performance of the fertigation systems, amount of fertilizers used, soil nitrogen content, yields, and nitrogen content of the harvested plants were monitored. The digestate application averaged 5 m3/ha per fertigation event with P-F and 4.9 m3/ha with D-F corresponding, respectively, to 28 and 23 kg N/ha. Both irrigation systems were suitable for fertigation provided that the digestate was adequately filtrated. Our results suggest that fertigation with digestate, if properly managed, can be applied during the growing season up to the full amount of nitrogen required by the crop. View Full-Text
Keywords: slurry management; digestate liquid fraction; sustainability; nitrogen-use-efficiency; nitrogen balance; emission reduction; side-dressing fertilization slurry management; digestate liquid fraction; sustainability; nitrogen-use-efficiency; nitrogen balance; emission reduction; side-dressing fertilization
Show Figures

Figure 1

MDPI and ACS Style

Guido, V.; Finzi, A.; Ferrari, O.; Riva, E.; Quílez, D.; Herrero, E.; Provolo, G. Fertigation of Maize with Digestate Using Drip Irrigation and Pivot Systems. Agronomy 2020, 10, 1453.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop