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我国中低产田面积占总耕地面积70%以上,其中大部分存在有机质和中微量元素缺乏和肥料利用率低的问题。为防止中微量元素施入土壤后被固定而失效,提出利用废弃资源,生产有机中微肥(如氨基酸、木质素磺酸、腐植酸中微肥等),其生产成本比EDTA螯合中微肥低,并简要介绍了各种有机中微肥的生产工艺过程。只要做到测土施肥,有针对性加入有机中微肥,即可达到提高作物产量、品质,提高肥料利用率,提高土壤肥力的良好效果。
The area of middle and low yield farmland in China accounts for more than 70% of the total cultivated land area, most of which have the problems of lack of organic matter and trace elements and low utilization rate of fertilizer. In order to prevent medium and trace elements from being immobilized after being applied to the soil, it is proposed that the use of waste resources to produce organic medium-sized micronutrients (such as amino acids, lignosulfonic acids and humic acid, etc.) Fat, and briefly introduced a variety of organic fertilizer production process. As long as soil testing and fertilization are done, it can achieve the good effect of improving the yield and quality of crops, increasing the utilization rate of fertilizers and increasing the soil fertility by adding the organic micro-fertilizer in a targeted manner.