First, fresh manure should not be directly applied to vegetables. Fresh human excrement contains a large number of germs, toxins and parasite eggs. If it is applied directly without decomposing, it will pollute the vegetables, which will easily cause the disease to enter from the mouth. It can be applied after high temperature stacking fermentation or harmless treatment.
Second, the unfertilized livestock and poultry manure will produce a large amount of harmful gases such as hydrogen sulfide in the process of decay, which will easily cause the vegetable seeds to suffer from hypoxia and suffocation; in addition, it is easy to cause vegetable seeds to burn or root rot with a large amount of calories, which is not conducive to vegetables. Seed germination.
Third, nitrogen fertilizer should not be applied to beans and vegetables. The nodules of the roots of legumes can fix nitrogen by themselves, and excessive application of nitrogen fertilizer not only wastes fertilizer, inhibits nodule activity, reduces nitrogen fixation, but also causes it to grow stems and leaves, reduce yield and affect quality.
Fourth, the chlorinated fertilizer should not be applied too much. To the leaves (stem) vegetables, excessive application (spraying) of potassium chloride, etc., not only makes the vegetables not fresh, more fiber, but also makes the water quality of the vegetables taste bitter, the taste is poor, and the benefits are low.
Huaxian County Agricultural Products Testing Center Luo Junying
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