Vegetable fertilization pay attention
Attention should be paid to the use of pathogens and parasite eggs that will contaminate vegetables when they are not directly applied to livestock manure and human feces and urine. Therefore, it is best to apply livestock manure and human excreta that have been subjected to high-temperature heaping and full decomposing.
Note that the use of nitrate-nitrogen fertilizers in conjunction with nitrate nitrogen fertilizers may prevent the occurrence of vegetable rot, but when nitrate-nitrogen fertilizers applied in the soil reach a certain amount, the nitrate content in vegetables will increase dramatically and nitrate It is a harmful substance that can easily cause many diseases in human body. Therefore, vegetables should be less applied nitrate-nitrogen fertilizer, more safe and harmless iron nitrogen fertilizer.
Pay attention to beans and vegetables should not be more nitrogen fertilizer is well known, legume root vegetables from the nitrogen fixation and cause vegetable root burning. Fertilize when the field is well-oiled and the soil is moist.
Note that as little nitrogen fertilizer is applied as possible. After applying chlorine-containing fertilizer to the soil, when the chloride concentration reaches a certain amount, it will have a toxic effect on the root system of the vegetables, leading to plant death. Many vegetables are chlorine crops, such as tomato is very sensitive to chlorine. Therefore, try not to apply chlorine fertilizer.
Note that foliar fertilization should not use inorganic nitrogen fertilizer outside the vegetable top dressing, if the foliage spraying inorganic nitrogen fertilizer, it is easy to damage the chlorophyll in the leaves and cause damage to the vegetables. Therefore, it is advisable to apply organic nitrogen fertilizer (urea or urine) on the foliar fertilizer.
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