论文部分内容阅读
本研究于 1990～ 1998年在国家黑土肥力和肥料监测基地进行 ,监测研究了不同处理间黑土肥力演化规律、增产效益和化肥利用率。结果表明有机无机肥配合施用可改善土壤理化性状 ,培肥和提高地力 ,有明显的增产增收效益。
The study was carried out in the national black soil fertility and fertilizer monitoring base from 1990 to 1998. The evolution of black soil fertility, yield increase and fertilizer use efficiency were monitored and studied. The results showed that the combination of organic and inorganic fertilizers can improve soil physical and chemical properties, fertilize and improve soil fertility, and have obvious yield and income benefits.