The specific measures are as follows:
1. After washing with mud and rain, most of the leaves of the 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.
Second, timely drainage due to soil water accumulation, vegetable roots for a long time forced to carry out anaerobic respiration, will cause the accumulation of toxic substances, which will make the crops wilting, and even death. 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.
Third, after cultivating the soil, the soil is poorly squashed and the ventilation is poor. The soil can be ploughed when the soil moisture is suitable, so as to dilute 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.
Fourth, the well water cooling "squatting 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.
5. Timely topdressing due to the surface runoff and leaching of rainwater, resulting in a large loss of effective nutrients in the soil. In order to ensure the robust growth of the plant, it is necessary to properly supplement the available nutrients, and apply 5~10 kg of ammonium bicarbonate, diammonium phosphate, potassium chloride, etc. with water, or spray 0.3% urea solution, 1% on the foliar surface. The potassium dihydrogen phosphate solution, 150 times of the composite rare earth micro-fertilizer, and the like.
Sixth, disease prevention and treatment of diseases after the rain is prone to spread. 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% Dakoning 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 to prevent and cure 72% gram of 600-800 times, or 77% can kill 500 times liquid spray.
3 onions, leeks, garlic blight, downy mildew, can be controlled by 72% gram of 600-800 times spray.
4 cabbage, cabbage, lettuce soft rot, can be controlled with 3% Jinggangmycin 600ml and 60kg spray per acre. 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 attention should be paid to the alternate use and rational matching of the medicaments.
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