Innovative Controlled Release Fertilizer Technologies in Agriculture

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Soil and Plant Nutrition".

Deadline for manuscript submissions: 30 April 2024 | Viewed by 1034

Special Issue Editor


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Guest Editor
Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Interests: efficient fertilization technology; controlled release fertilizer

Special Issue Information

Dear Colleagues,

For decades, huge amounts of fertilizers have been used to improve the yield of crops to sustain increasing demands for agricultural products; however, the excessive application of fertilizers has resulted in lower fertilizer use efficiency (FUE) and negative environmental impacts. Controlled release fertilizers (CRFs) provide a solution to this, as nutrients can be released in a timely and gradual manner, attempting to match the specific nutrient demands needed during plant growth. It is indicated that the application of CRFs could increase or maintain the grain yields of crops, and improve the FUE while reducing negative impacts on the environment. Therefore, the innovation of CRF technologies is essential for the development of agriculture.

This Special Issue covers the following scientific issues:

  1. The innovation of CRF technologies, such as the innovation of controlled-release coating materials, the production processes of CRFs, and so on;
  2. Characteristics and types of controlled release fertilizers (for example, the environment-sensitive CRFs, e.g., temperature-sensitive, pH-sensitive, light-sensitive CRFs, and so on);
  3. Concept, reality, and mechanism of controlled release fertilizer;
  4. The effects of innovated CRFs on grain yields, nutrient use efficiency of different crops, and nutrient balance in the soil–plant–environment system;
  5. Prospects and potential of controlled release fertilizers in the agricultural industry.

The Guest Editors invite scientists to share their knowledge about innovative solutions related to controlled release fertilizers, with a particular emphasis on soil fertility and quality, as well as soil condition monitoring. Both original research papers and thematic reviews are acceptable for submission.

Dr. Juan Li
Guest Editor

Manuscript Submission Information

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Keywords

  • controlled release fertilizers (CRFs)
  • fertilizer use efficiency
  • nutrient demands
  • nutrient balance

Published Papers (1 paper)

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Research

16 pages, 1881 KiB  
Article
The Long-Term Application of Controlled-Release Nitrogen Fertilizer Maintains a More Stable Bacterial Community and Nitrogen Cycling Functions Than Common Urea in Fluvo-Aquic Soil
by Lei Ma, Yan Li, Jianlin Wei, Zishuang Li, Hongjie Li, Yudong Li, Fuli Zheng, Zhaohui Liu and Deshui Tan
Agronomy 2024, 14(1), 7; https://doi.org/10.3390/agronomy14010007 - 19 Dec 2023
Viewed by 747
Abstract
Controlled-release nitrogen fertilizer (CRNF) has been proven to surpass common urea by mitigating nutrient losses, enhancing soil quality, and improving crop productivity. However, the long-term effects of CRNF on soil biological properties are not well understood. Here, a 12-year field experiment was conducted [...] Read more.
Controlled-release nitrogen fertilizer (CRNF) has been proven to surpass common urea by mitigating nutrient losses, enhancing soil quality, and improving crop productivity. However, the long-term effects of CRNF on soil biological properties are not well understood. Here, a 12-year field experiment was conducted with five treatments: no N fertilizer (PK); the split application of urea at the farmer’s practice rate (FP) and the optimal rate (OPT); the one-time application of CRNF at the same rate as the OPT (CRNF); and a 20% reduced rate of the OPT (0.8CRNF). Soil samples were collected during the maize tasseling and filling stages; high-throughput sequencing and the PICRUSt2 method were employed to determine the bacterial community and its functional potential. The results showed that CRNF significantly increased alkaline hydrolysis N by 14.10% and 9.45% compared to OPT during the tasseling and filling stages, respectively. This increase in soil available N resulted in a significant increase in bacterial diversity of 2.09% and 2.35% compared with the FP and OPT, respectively. The bacterial community in the FP and OPT changed markedly between the tasseling and filling stages, with many bacterial species at the ASV and genus levels showing variations in relative abundance. In contrast, CRNF and 0.8CRNF exhibited stable N-cycling functions, as indicated by the lower variations in nitrate reductase and predicted N-cycling functional genes between the tasseling and filling stages. The obtained results suggest that CRNF application can enhance soil N supply, promote the formation of stable bacterial communities, and maintain stable N-cycling functions. Full article
(This article belongs to the Special Issue Innovative Controlled Release Fertilizer Technologies in Agriculture)
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