How to overcome continuous crop obstacles

Planting the same kind of vegetables in the same land year after year will result in poor growth and development of the vegetables due to pest and disease damage, malnutrition, poor physical and chemical properties of the soil, and even death of dead plants, resulting in lower yield and worse quality. Often said that continuous obstacles. Reasonable crop rotation is the best way to prevent continuous cropping obstacles in vegetables. The effect is particularly obvious with paddy-upland crop rotation. However, if it is limited to cultivable areas and cultivation facilities, etc., it can be used as follows:

Soil improvement

Add some new soil rich in organic matter, reduce the concentration of soil salts; deep turn the soil 30 to 60 cm, to improve the physical and chemical properties; in the idle irrigating salt washing, and promptly eliminate the salt water.

Reuse organic fertilizer

Organic fertilizer can not only increase the content of organic matter and trace elements in soil, but also improve soil structure and enhance its functions such as fertilizer retention, water conservation, fertilizer supply, ventilation, and temperature adjustment.

Soil disinfection

Soil disinfection is one of the important measures to overcome the continuous cropping obstacles of vegetables. The applicable methods include lime disinfection, high temperature disinfection, hot water disinfection, solar energy disinfection, and drug disinfection.

Balanced fertilization

The excessive application of chemical fertilizers, especially nitrogen fertilizers, will significantly increase the content of soluble salts in soil, aggravate the occurrence of pests and diseases, and affect the yield and quality of crops. Therefore, according to the fertilizer requirements of various vegetables and soil fertility to determine the ratio of nitrogen, phosphorus, potassium fertilizer and dosage.

Adding fertilizer

Continuous cropping can cause the consumption of trace elements in the soil. Therefore, in addition to nitrogen, phosphorus, and potassium fertilizers, fertilizers should also be supplemented with trace elements.

Selection of resistant varieties

The selection of disease-resistant, high-quality and high-yielding vegetable varieties is the prerequisite for improving the disease resistance of vegetables, and it is also the most economical and effective measure for the prevention and control of soil-borne diseases.

Grafting

The grafting of susceptible soil-borne diseases using rootstocks with strong resistance can prevent the dissemination and damage of soil-borne diseases to scion varieties. Such as using Torurub, Totosgar, etc. as the rootstock grafted eggplant cultivation, disease prevention effect is very good.

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