First of all, because the total nutrient content of organic fertilizers is relatively low, the total NPK nutrient content of some fertilizers on the market is relatively easy to meet the requirements, but the content of organic matter is often unqualified.
Second, organic fertilizer is a kind of fertilizer that is beneficial to processing and production. Therefore, quite a few small-scale enterprises have conducted manual workshop production. The quality of such organic fertilizer products cannot be guaranteed.
Third, organic fertilizer packaging labels often appear misleading, such as some counterfeit fertilizers, which are usually supplied to farmers in the form of organic fertilizers, and even the emergence of counterfeit fertilizers such as organic urea.
In addition, farmers' friends should pay special attention to avoid using fertilizers made from waste such as municipal waste and sludge. Usually more organic fertilizers are made from animal and plant residues and their excreta, ie, pig manure, chicken manure, cow dung and other fermented products.
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