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目前我国的大部分地区施用化肥仍然采用地表撒施的传统施肥方法,化肥利用率仅有30％左右,特别是碳酸氢铵肥料不均匀地撒在土地的表层,大部分有效成分在空气中挥发而损失,利用率不足27％。这在目前我国化肥紧张的情况下,更加剧了供求的矛盾。 试验表明,化肥深施可以提高肥效,增加产量,降低生产成本,具有广阔的前景和潜在的经济和社会效益。 化肥深施是指使用机械或手工工具,将化肥施入土壤一定的深度,一般采用三种形式:
At present, most fertilizers in our country still use the traditional methods of applying fertilizers on the surface. The fertilizer utilization rate is only about 30%. Especially, the ammonium bicarbonate fertilizer is unevenly sprinkled on the surface of the land, and most of the active ingredients are volatilized in the air The loss, the utilization rate of less than 27%. This is in the current tense situation of China’s fertilizer, but also exacerbated the contradiction between supply and demand. Experiments show that deep fertilization can improve fertilizer efficiency, increase production and reduce production costs, with broad prospects and potential economic and social benefits. Deep fertilizer application refers to the use of mechanical or hand tools, fertilizers applied to the soil to a certain depth, the general use of three forms: