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Adding organic fertilizers To improve the soil structure, there must be substances that can stabilize the structure, such as improvers and organic fertilizers. The application of organic fertilizer can not only supply the demand of NPK, but also promote the formation of soil aggregate structure, improve the ability of water retention and fertilizer retention and increase the buffer capacity of soil. It is the material guarantee for fertilizing new vegetable fields and should be highly valued.
The leguminous green manure legume green manure is used to fix the nitrogen in the atmosphere. After picking the edible part, the straw is returned to the field, especially the fresh stems and leaves such as peas and broad beans are pressed to increase the soil organic matter and nitrogen content.
Reasonable rotation of vegetable continuous cropping will lead to soil acidification, salinization and disease spread. In the area of ​​grain-changing vegetables, special attention should be paid to rational rotation, using the differences in the absorption of different varieties of vegetables, slowing the excessive consumption of certain nutrients, avoiding or alleviating the above problems, so as to give full play to the production potential of the new vegetable fields. For example, in the rotation, some mustard, peas, etc. can be used to absorb phosphorus and potassium that cannot be utilized by ordinary vegetables, and 14% to 34% of phosphorus and potassium are re-distributed to the soil in a usable state to improve phosphorus and potassium nutrition for the sorghum vegetables. situation. There are many ways to rotate, but one season of legumes should be arranged in the rotation. Zhu Guangkai
Farmers Daily 
The soil quality of the new vegetable fields is generally poor. The cultivated layer is only about 15 cm. When the vegetable field is changed to a vegetable field, the nutrient consumption is large due to the increase in the number of planting alfalfa. The cultivation layer should be gradually deepened to improve its physical properties. The deep ploughing time can be arranged when the summer and autumn vegetables are out of the garden, each of which is turned over twice, so that the tillage layer reaches 25 to 40 cm.
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