氮磷钾肥对稻麦增产效果研究

本文报导了氮磷钾肥及其配施对稻、麦增产的效果;对尿磷钾、氟磷钾、硝磷钾3种复(混)合肥在等量氮磷钾条件下与单质氮磷钾肥的肥效进行了比较。对施肥影响稻、麦籽粒品质和连续四茬单纯施用化肥引起土壤有机质、全氮大幅度下降,土壤肥力明显降低等问题亦作了较详细的介绍。

Effect of Nitrogen Phosphate and Potassium Fertilizers on Yield of Rice and Wheat Crops

In this paper we studied the effect of N ( orP, K)fertilizer and their combined application on yield of rice and wheat crops, compared the efficience of three compound fertilizers(urea phosphate potassium,chloride phosphate potassium and nitric phosphate potassium) with single NPK fertilizer at the same quantity, and also introduced quetions that because fertilzers are applied 4 stubbles continuously, the grain quality, the soil fertility and the soil organic substance was led to decrease, etc.