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Agronomy
Special Issues
Fertigation Effects on Water and Nutrient Use Efficiency for Agro-Crop...
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Fertigation Effects on Water and Nutrient Use Efficiency for Agro-Crop Plants

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Farming Sustainability".

Deadline for manuscript submissions: 31 August 2024 | Viewed by 704

Special Issue Editors

Dr. Lichun Wang

E-Mail Website
Guest Editor
Information Technology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
Interests: nutrient solution management for hydroponic crops; fertigation technology
Special Issues, Collections and Topics in MDPI journals
Dr. Songrui Ning

E-Mail Website
Guest Editor Assistant
State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi’an University of Technology, Xi’an 710048, China
Interests: soil water and salt balance; irrigation schedule; leaching fraction; modeling; salinity risk; water-salt-fertilizer coupling

Special Issue Information

Dear Colleagues,

In the ever-evolving landscape of agriculture, optimizing water, salt, and nutrient management is fundamental to ensuring sustainable crop production and addressing the growing global demand for food, fiber, etc. Fertigation, the innovative practice of applying fertilizers through irrigation systems, is a promising approach to enhance water and nutrient use efficiency and revolutionize traditional farming methods. This Special Issue aims to unravel the intricate interplay between fertigation techniques and water/nutrient utilization in agro-crop plants and shed light on advancements that hold the key to future agricultural sustainability. Researchers are invited to contribute original research articles, reviews, and perspectives that encompass a wide range of topics within the realm of fertigation effects on water and nutrient use efficiency. The scope includes, but is not limited to, investigations into nutrient delivery systems, the formulation of optimized nutrient blends, soilless production, crop-specific responses to fertigation, environmental implications, and the technological innovations driving this field forward.

Dr. Lichun Wang
Guest Editor

Dr. Songrui Ning
Guest Editor Assistant

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agronomy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fertigation
  • water and nutrient use efficiency
  • fertilizer-yield effect
  • irrigation systems
  • water–salt–fertilizer–carbon coupling
  • crop nutrition
  • soilless culture
  • nutrient delivery
  • soil fertility
  • controlled release fertilizers
  • precision farming
  • agricultural practices

Published Papers (1 paper)

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Research

15 pages, 1968 KiB  
Article
Optimizing Nitrogen Fertilizer Management Enhances Rice Yield, Dry Matter, and Nitrogen Use Efficiency
by Xiaoe He, Haijun Zhu, Ailong Shi and Xuehua Wang
Agronomy 2024, 14(5), 919; https://doi.org/10.3390/agronomy14050919 - 27 Apr 2024
Viewed by 422
Abstract
Optimizing nitrogen fertilizer management can effectively improve soil ecology, promote agricultural production, and increase the income of farmers and workers. Nitrogen fertilizer is an important factor in the growth and development of rice, and it is important to find out the optimal amount [...] Read more.
Optimizing nitrogen fertilizer management can effectively improve soil ecology, promote agricultural production, and increase the income of farmers and workers. Nitrogen fertilizer is an important factor in the growth and development of rice, and it is important to find out the optimal amount and frequency of fertilizer application for the super-hybrid early rice ‘Zhu LiangYou 819’ in Hunan Province, to give full play to its high quality and high yield characteristics. Various N fertilizer application frequencies (P1, basal–tiller fertilizer = 5:5; P2, basal–tiller–spike fertilizer = 4:3:3; P3, basal–tiller–spike–grain fertilizer = 4:3:2:1) and N application amounts (N1, 90 kg ha−1; N2, 150 kg ha−1; N3, 210 kg ha−1) were applied to the hybrid rice ZLY819. The results show that, under the same frequency of N application, ZLY819 had the highest yield, agronomic efficiency, and physiological utilization rate of N fertilizer with the N2 treatment, averaging 7.53 t ha−1, 18.10 kg kg−1, and 34.34%, respectively, with the yield under N2 being 19.38% higher than that under N1. For the same amount of N application, the yield, agronomic efficiency, partial factor productivity of N (PFPN), N contribution to seed, and N use efficiency (NUE) increased with an increase in the frequency of N application, mainly in the order of P3 > P2 > P1, whereby the yield of P3 was 10.11% higher than that of P1. According to the regression equation, the yield is higher when the amount of nitrogen application is 202.15 kg ha−1 and the fertilization frequency is four times. Appropriate N fertilizer management (P3N2) improved the rice growth characteristics, dry matter accumulation, crop growth rate, dry matter transport rate, dry matter contribution rate, and NUE, thus promoting an increase in the rice yield and efficient use of nitrogen. Full article
(This article belongs to the Special Issue Fertigation Effects on Water and Nutrient Use Efficiency for Agro-Crop Plants)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Study on the kinetics of tomato storage quality under water and fertilizer coupling
Authors: Yanchao Yang; Zhanming Tan; Yunxia Cheng; Liyu Yang; Tao He; Shuang Liang; Yongming Wang
Affiliation: College of Horticulture and Forestry Sciences, Tarim University / Key Laboratory of Protected Agriculture of Southern Xinjiang / National and Local Joint Engineering Laboratory of High Efficiency and High Quality Cultivation and Deep Processing Technology of Characteristic Fruit Trees in Southern Xinjiang , Alar, Xin-jiang 843300, China; Agricultural Division of Agricultural Divisionwym
Abstract: In order to make full use of the yellow sand resources in Xinjiang, China, under the mixed substrate cultivation mode with the volume ratio of yellow sand to slag of 5:3, in order to improve the yield and storage quality of tomato, provide optimized water and fertilizer management scheme, and explore the dynamic changes of water and fertilizer coupling on the quality of Tomato during storage, a dynamic model of tomato fruit quality under 4 ℃ storage was established.The tomato variety 'Qinshulingyue' was used as the experimental material. Irrigation amount, nitrogen appli-cation amount, phosphorus application amount, and potassium application amount were consid-ered as factors, and a half of the four-element quadratic general rotary combination design (20 treatments) was employed. The tomato fruits were stored at 4 °C for 28 days, with samples collected every 7 days to assess the quality of the fruits and analyze the effect of water and fertilizer coupling on tomato storage quality. Pearson correlation analysis and a combined evaluation method were used to comprehensively evaluate the indicators, and a response model was constructed to establish the relationship between the comprehensive score of tomatoes and the four factor levels.The results indicated that the reasonable ratio of water and fertilizer could enhance the quality of tomatoes, while excessive or inadequate water and fertilizer parameters could reduce the fruit quality. The changes in tomato hardness, soluble sugar, lycopene, and vitamin C content during storage were consistent with the first-order kinetic equation. Through a comprehensive analysis of tomato quality index (TQI), an irrigation amount of 602 mm/hm2, nitrogen application rate of 570 kg/hm2, phos-phorus application rate of 70 kg/hm2, and potassium application rate of 738 kg/hm2 under water and fertilizer coupling could effectively improve the fruit quality of stored tomatoes, and the equation fitting degree and storage resistance were also satisfactory

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