Fertilization of new vegetable fields

In recent years, due to other reasons such as industrial restructuring and urban expansion, some old vegetable fields have been occupied, while some grain fields and wasteland have been changed to vegetable fields. These new vegetable fields all have shallow soil layers, poor permeability, low soil organic matter content, poor soil quality, lack of nutrients, and unsuitable factors such as irrigation and drainage. Therefore, it is necessary to accelerate fertility to ensure soil nutrient balance and accelerate soil. Ripening, creating good soil conditions for high yield of vegetables. The method of fertilizing is as follows:

Deep ploughing and soil improvement: The soil quality of grain fields is generally poor. The cultivated layer is only about 15 cm, which is changed to vegetable soil. Due to the increase in planting carp and nutrient consumption, the tillage layer should be gradually deepened to improve its physical properties. The deep ploughing time can be arranged when the summer and autumn vegetables leave the garden, each of which is turned twice, so that the tillage layer reaches 25-40 cm.

Adding organic fertilizer: To improve the soil structure, it is necessary to have substances that can stabilize the structure, such as improvers, urban organic waste, and organic fertilizer. The application of organic fertilizer can not only supply the needs of vegetables for nitrogen, phosphorus and potassium, 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. It should be highly valued.
Planting legume green manure: legume green manure fixes the nitrogen in the atmosphere. After picking the edible part, the straw is returned to the field, especially the young leaves of peas, broad beans and the like, which can increase the soil organic matter and nitrogen content.

Reasonable rotation: continuous cropping of vegetables can 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, some mustard, peas, etc. can be arranged in the rotation, which can absorb phosphorus and potassium which cannot be utilized by ordinary vegetables, and 14%-34% are re-used in the soil in the usable state, and the phosphorus and potassium are improved for the sorghum vegetables. Nutritional status. There are many ways to rotate, but one season of legumes should be arranged in the rotation.

In addition, according to the specific circumstances of each piece of land, it is necessary to take appropriate measures against the "disease". For example, for low-lying areas that often encounter internal hemorrhoids, water problems must be addressed; for acidic soils, calcareous fertilizers must be applied. It is a long-term task to cultivate new vegetable fields. It is not realized in the short term. If all kinds of measures are taken properly, the effect is quite obvious. All localities can be fertilized according to local conditions.

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