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深层施肥是经济施用氮素化学肥料和提高作物产量的一项有效措施。它能减少氮素的挥发和流失,提高利用率。深施覆土保肥力强,肥劲释放缓慢持久,能满足作物对氮肥的要求,起着增产作用。小麦,玉米,水稻深层施肥均有显著增产效果:1.小麦:开沟施肥供应了肥料,控制了旺苗猛长,对三类苗有良好的促进作用。施肥深度,以3寸以上效果显著,此表施增产24%,千粒重提高4克,深施减少氮素挥发,提高土
Deep application of fertilizers is an effective measure for economical application of nitrogen chemical fertilizers and for increasing crop yields. It can reduce nitrogen evaporation and loss, improve utilization. Deep overburden soil fertility, fertilizer release slow and lasting, to meet the requirements of crops on nitrogen fertilizer, play a role in increasing production. Wheat, corn, rice deep fertilization have significant yield-increase effect: 1. Wheat: ditching fertilizer supply of fertilizer, control the Mongolian Meng long, the three types of seedlings have a good role in promoting. Fertilizer depth to 3-inch or more significant results, this table yield 24% increase, 1000 grain weight increased 4 grams, deep application of nitrogen to reduce volatilization and increase soil