低化肥投入下作物高产和养分高效的可行性分析

对比了不同国家主要粮食作物的化肥用量与产量,分析了西欧国家降低化肥投入并未导致粮食产量大幅下降的实例,得出降低化肥投入实现作物高产和养分高效利用是完全可能的.结合国外成功的经验和我国的生产实际,提出我国应通过协调养分间的平衡,充分发挥化肥以外的其他养分的作用,挖掘作物自身的生物学潜力三个途径实现低化肥投入条件下的作物高...

Analysis for the feasibility of achieving high yield and nutrient efficiency at low fertilizer input

Overuse of chemical fertilizer has led to both high production costs and serious risk of environmental pollution.Therefore,reduction of fertilizer input while increasing its efficiency will be crucially important for sustainable agriculture.This paper compared chemical fertilizer rates and grain yield of the main crops in different countries,analysed the typical instances that decreased fertilizer use did not lead to obvious reduction of crop yield in western European countries,and found that high grain yie...