控释氮肥在棉花上的应用研究进展

氮素是棉花生长发育所需的主要元素,而控释氮肥能够依据棉花对氮素的需求控制氮素释放,保证了棉花的高质稳产,提高了氮素利用效率,加快了棉花高产高效简化栽培技术的发展,也在一定程度上减轻了环境污染。本文综述了控释氮肥的概念和类型,以及施用控释氮肥对棉花产量、品质、生理特性和土壤氮素变化等影响的研究概况,并且提出控释氮肥在棉花上应用存在的问题和进一步的研究方向及展望。

Research Advances in the Application of Controlled Release Nitrogen Fertilizer in Cotton Production

Nitrogen plays a vital role in cotton growth and metabolism. Controlled release nitrogen fertilizer(CRNF) can control the supply of nitrogen based on the requirements of cotton, thus improving the fiber quality and yield, and increasing the nitrogen use efficiency. The application of CRNF has sped up the development of simplified cotton cultivation technology with high yield and efficiency, and also decreases environmental pollution. The concept and types of CRNF are described and research advances in the effects of CRNF on yield and its components, fiber quality, the physiological characteristics of cotton and soil nitrogen dynamics are reviewed in the present paper. Additionally, the problems, research direction and outlook of CRNF for cotton applications are discussed.