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Modify soil before planting melon
Continuous cultivation of melons for many years will cause severe continuous cropping obstacles, weak plant growth, and serious diseases, resulting in a decline in the yield and quality of melons. Soil improvement should be done well before the melon planting. First, change the habit of reusing chemical fertilizers, increase the amount of organic fertilizers, increase biological bacterial fertilizers, and improve the soil. The application of organic fertilizer can improve the soil aggregate structure, enhance soil water conservation and fertilizer retention, alleviate soil salinization, and promote root development. The application of biological bacterial fertilizer can increase the number of beneficial bacteria in the soil, can dissolve phosphorus, release potassium, fix nitrogen, and effectively inhibit the infection of pathogens and reduce the occurrence of root diseases. Second, it advocates changing the rotation. The rotation of melon vegetables and eggplant vegetables can reduce the number of pests and diseases and reduce the occurrence of pests and diseases. In addition, different types of vegetable rotations can avoid nutrient imbalances, maintain soil nutrient balance, and make full use of soil fertility. Again, strengthen the prevention of root-knot nematodes. Use 10% thiazophos granules to treat the soil, spread 1 to 2 kg per acre before planting, and then mix well with the soil. The depth of mixed soil should reach 20 cm. Finally, pay attention to deep soil 30 cm to improve the soil's ability to retain water and fertility.