摘要
农业高速发展需要化肥,但过量施用会造成人为性面源污染,直接或最终危害人体健康和人类生存。目前最大量推荐施肥是不可取的。实测和理论数值表明,即使对目前的推荐施肥量减少20％,也不会使产量减少>2％。这对提高肥料利用率,减少面源污染是完全有利的。
High speed development of agriculture needs the input of chemical fertilizer. However, over use of fertilizer will induce man-made pollution, harm directly human's health and threaten human's living environment. It is found that maximum suggested fertilzer application rate is not the best method to be adopted. The results of experiments and theoiy inference indicate that even the suggested fertilizer application rate reduce by 20%, the crop yield will not decrease by more than 2%. This result is benefit in increasing fertilizer availability and reducing chemical fertilizer pollution.
出处
《农村生态环境》
CSCD
1992年第4期54-55,共2页
Rural Eco-Environment
