The more organic fertilizer used for vegetables, the better.
Traditional agriculture advocates that vegetable fields should apply a large amount of organic fertilizer, and even think that the more organic fertilizer, the better. However, according to the results of many experiments in various places in recent years, the appropriate application of organic fertilizer can effectively control the excessive nitrate in vegetables, while the blind application of organic fertilizer will lead to excessive nitrate in vegetables. The high content of nitrate in vegetables may cause direct harm to the human body, and what is more dangerous is that nitrate can be easily reduced to nitrite under the action of microorganisms. Nitrite is a toxic substance, which can directly cause poisoning and hypoxia, and can lead to death in severe cases. Nitrite can also combine with secondary amines in the digestive tract of the human body to form a strong carcinogen nitrite amine. Therefore, the content of nitrate in vegetables must be strictly controlled to ensure the safety of eaters. The application rate of high-quality farm manure in vegetable field should be controlled at 3000kg / mu, generally not more than 6000 kg / mu.
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Similarly, we should pay attention to the application of organic fertilizer.
Frosts Descent, this solar term brings you the breath of early winter. Frosts Descent is in the transition period of autumn and winter. with the arrival of Frosts Descent, the weather changes greatly, getting colder gradually and beginning to fall frost. The leaves of plants and plants to the north of the Yellow River are withered and withered, and the stinging insects hang their heads in the hole to enter the hibernating state.
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The application of organic fertilizer should be enough.
Compared with traditional composting, biological composting has the advantages of convenient retting, labor-saving, time-saving, low cost, high fertilizer efficiency and so on. The specific operation method is to use roadside, land and abandoned pits to add water, urea and bacteria to wheat and corn stalks in a certain proportion, and then seal them with soil or mud.
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