Vegetable Continuous Crop Technology Measures

Implementing crop rotations for vegetable sources that have caused serious damage to virus sources and infectious diseases requires avoidance measures for these diseases, regular rotation and interplanting, changing the living environment of these pests, and thus causing them to lose their hosts and cut off. The source of their nutrition, to achieve the purpose of reducing or eliminating pests and diseases. For example, the blight of crops such as cucumbers, tomatoes and other crops is caused by Fusarium, and the sputum contained in the onion root system can inhibit the growth of Fusarium. Therefore, crop rotation or intercropping can effectively reduce the incidence of blight.

Disinfect the soil and remove the residue from the former. Apply lime to 50 to 100 kilograms per acre. Spread 1,000 to 2,000 kilograms of straw, wheat straw, and corn stover in the furrows. Dip twice to bury the lime and straw in the ground. It is 30-40 centimeters. Straw is as short as possible, compacted after ploughing, and covered with a thin membrane to prevent water loss and temperature drop. Water is poured from the film until the soil is sufficiently moist, and no water can accumulate in the field. Or use a variety of chemical agents or biological agents to disinfect the soil by spraying, watering, soil mixing, fumigation and other methods. Spraying or watering is to spray the liquid on the surface of the soil or directly into the soil, so that the liquid penetrates into the deep layer of the soil and kills the bacteria in the soil. Sprinkling and watering methods are suitable for Daejeon, nursery soil, and greenhouses.

Reasonable application of NPK fertilizer chemical fertilizers, especially if the N fertilizer application rate is too high, will significantly increase the content of soluble salts in the soil, aggravate the damage of pests and diseases, and affect the yield and quality of crops. Therefore, the rational application of NPK fertilizer, that is, according to the laws of fertilizer requirements of various vegetables and soil fertility to determine the ratio of NPK and fertilizer use.

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