First, early water accumulation

Due to the accumulation of water in the soil, vegetable roots are forced to undergo anaerobic respiration for a long time, which will cause the accumulation of toxic substances, which will cause the crop to wilting and even die. Therefore, the vegetables that have been planted without ridge cultivation should be heightened, and the irrigation and drainage system in the field should be improved. Water should be drained in time after the rain. The seedlings of autumn and winter vegetables should be sorghum, and the ridges should be mulled around the nursery to prevent rain around. Into the nursery.

Second, after spraying water, the leaves of most vegetable seedlings are covered by splashed soil, affecting photosynthesis, and some vegetable seedlings are silted. Therefore, after the rain, the vegetable must be sprayed with a sprayer until it is washed. Laying the film between the rows of vegetable fields and covering the grass can prevent the splash of the soil. In addition, autumn and winter vegetables advocate the use of bamboo curtain cover or shade net seedlings.

Third, the pouring garden cooling "涝 pouring garden" refers to the summer and autumn after the hot rain, timely use the well water to fill the vegetable field to reduce the ground temperature. The well water used should be clean, cool, and can be followed by irrigation.

Fourth, cultivating loose soil

After the rain, the soil is poorly squashed and the ventilation is poor. The soil can be ploughed when the soil moisture is suitable, so as to spread the soil and loose the soil. Pay special attention to loose soil in the nursery, otherwise it will be unfavorable to the growth of seedlings, and even "small old seedlings" will appear.

Five, timely topdressing

Due to the surface runoff and leaching of rainwater, a large loss of effective nutrients in the soil is caused. In order to ensure the robust growth of the plant, it is necessary to properly supplement the available nutrients, and apply 5 to 10 kg of ammonium bicarbonate, diammonium phosphate, potassium chloride, etc. with water or a 0.3% urea solution, 1%. Potassium dihydrogen phosphate solution, 150 times compound rare earth micro-fertilizer, and the like.

Sixth, prevention and treatment of pests

Diseases are prone to spread after the rain. Especially cucumber downy mildew, blight, pepper blight, powdery mildew, tomato late blight, eggplant blight, Chinese cabbage soft rot occurs most seriously, and some cause production. 1 bitter gourd, melon, melon, beans, gourd blight, can be used 75 % Dako Ning 800 times + 50 % carbendazim 800 times, the rhizosphere is applied, the second time is applied every 7 days; 2 cucumber, melon disease , can be used or 72 % gram of dew 600 ~ 800 times, or 77 % can kill 500 times liquid spray control; 3 onions, leeks, garlic blight, downy mildew, can be controlled by 72 % gram of 600 ~ 800 times spray. After the rain, the soil moisture is high, and the melons, the tigers, the crickets, the mantles, etc. tend to be heavy. According to the epidemic law of pests and diseases, timely spraying and prevention should be carried out, and the alternating use of pesticides and reasonable mixing should be noted.