近年来,农业生产中因连年大量使用化肥面带来的直接或潜在的危害已日渐突出, 特别是在今年特大干旱年份, 更为明显,表现在:一是农作物缺乏营养,生育不良。正像人类需要从不同食物中获得多种营养成分一样, 农作物生长过程中需要的养分有十多种,有机肥是完全肥料,氮、磷、钾三要素齐全,还含有钙、镁、硫、铁、硼、锰、铜等多种微量元素,这是化肥所不能代替的,而现在很多地方连 In recent years, the direct or potential harm caused by the heavy use of chemical fertilizers in agricultural production has become increasingly prominent in recent years. This is especially evident in the extremely dry years of this year. The first manifestation is the lack of nutrition and malnutrition in crops. Just as human beings need to obtain a variety of nutrients from different foodstuffs, there are more than ten kinds of nutrients needed for the growth of crops. The organic fertilizer is completely fertilizers, the three elements of nitrogen, phosphorus and potassium are complete, and calcium, magnesium, sulfur, Iron, boron, manganese, copper and other trace elements, which can not be replaced by fertilizers, and now many places with