有机中微肥的生产及其应用前景

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。

Production of organic secondary and micro-nutrient fertilizers and their application perspective

In China,the arable land of 70% has middle and low agricultural yield,which results from organics and middle and trace elements deficiency as well as low fertilizer efficiency.Avoiding the fixation of middle and trace elements,the production of organic middle and trace element fertilizer is recommended such as amino acid fertilizer,lignosulfonic acid fertilizer and humic acid fertilizer,with a lower cost than that of EDTA chelated varieties.The processes are simply presented.If balancing fertilization by soil test is realized and adequate organic fertilizers with middle and trace elements applied,good results are desired in high yield,high quality,high fertilizer effect and excellent soil conditions.