【摘要】 控释 /缓释肥料具有保证作物高产和减少对环境的危害 ,以及节工省肥的特点而成为肥料发展的新方向。本文介绍了控释 /缓释肥料的分类方法 ,控制养分释放的机制 ,概述了应用控释肥料带来的生态、经济和环境效应 ,并对控释 /缓释肥料生产存在的问题进行了讨论更多还原

【Abstract】 The steady increase in population growth and food demand and the continuous reduction in cultivated land per capita induce steady intensification of fertilizer application worldwide. Despite improvements in the practices of nutrient application, the efficiency of essential elements(especially N and P) is also low, which leads to a lot of environmental problems. The use of controlled release fertilizers starts to evolve as a promising direction offering an excellent means to improve management of nutrient application and by this reduce significantly environmental threats while maintaining high crop yields. A systematic classification of the slow and controlled release fertilizers and details about the mechanisms of nutrient release is given. The ecological, economic and environmental effects which are brought by controlled release fertilizer are reviewed in this paper. Finally, the problems in controlled release fertilizer production and practice are discussed.更多还原