控释氮肥在我国小麦-玉米轮作体系的应用研究进展

氮素在小麦-玉米轮作体系中占据重要地位.施用与小麦、玉米各生育时期需氮规律相吻合的控释氮肥,可改善作物生长特性及提高氮素利用效率,保障其高质稳产,并降低氮素淋溶污染风险.概述了控释氮肥性质和施用控释氮肥对小麦-玉米轮作体系作物产量、氮素利用效率、农艺学性状和土壤氮素含量及酸碱性等方面的影响,探讨了控释氮肥应用研究中存在...

Progress on Application of Controlled-Release Nitrogen Fertilizer in Wheat-Maize Rotation System in China

Nitrogen (N) plays an indispensable role in wheat-maize rotation system. The application of controlled-release N fertilizer improves the growth characteristics and N utilization efficiency of wheat-maize rotation system, ensures its high quality and stable yield, and reduces the risk of leaching pollution, which is consistent with the law of N demand in each growth period of wheat and maize. In this review, the properties of controlled-release N fertilizer and its effects on the yields of wheat-maize rotation system, N use efficiency, agronomic properties, soil N and acidity-alkalinity properties were summarized. The problems and countermeasures in the application of controlled-release N fertilizer were discussed. Suggestions and prospects for the research and development of controlled-release N fertilizer in the future were put forward, which would further promote the application of controlled-release N fertilizer in China's wheat-maize rotation system and lay the theoretical foundation.