Prevention and cure of diseases of summer gourd zucchini
June 18 07:02:52, 2019
According to the principle of "prevention as the main, comprehensive prevention and control", the comprehensive prevention and control of agriculture and the prevention and control of the ecological system are mainly supplemented with necessary chemicals. First, agricultural measures 1. grafting. The stocks of stocks such as No.1, No. 1 Warriors, Warriors, Warriors, and Co-prosperity were selected. 2. Clean pastoral. The diseased plants were found to be removed in time, and after the harvest, the diseased bodies were completely removed, and the disease was concentrated in the shed outside and burned. 3. Apply sufficient bio-organic fertilizer. Organic fertilizers must be fully fermented, rotted and sterilized. Composts made from fermented bacteria can be used. Can also spray "5406" No. 3 agent 600 times liquid disease prevention. 4. Deep plowing land 30-40 cm, ridging planting, covering the film. It is better to drip under the membrane. Watering should be done in sunny trenches under the membrane in the morning and dark water must be poured out. 5. Use a straw reactor or carbon dioxide generator or carbon dioxide solid gas fertilizer. 6. Timely pruning vines on squash and hanging curtains on the back wall of the shed to improve ventilation and ventilation conditions. Second, the selection of disease-resistant varieties and seed treatment 1. Uses finesse, emerald, gray celebrity, Bi Leimu and other fine varieties. 2. Soaked in warm soup, soaked in warm water with 50°C-55°C for ten minutes. 3. Saline bleaching, bleaching with 2-3% of 10% saline. 4. It is best to soak in the carbendazim hydrochloride solution with 0.1% active ingredient for 1 hour, soak it in clean water for 3-4 hours, then rinse with clean water and sow. Third, soil disinfection and sterilization 1. Seedbed disinfection. Use 25% metalaxyl wettable powder 4-5 grams per square meter seedbed and mix 4-5 kilograms of fine soil. When the water is poured, it is drenched. After the water seeps, take 1/3 of the soil and spread it on the surface of the seedbed. The remaining 2/3 is sprinkled on the seeds after sowing. Keep the surface moist and spread the soil uniformly to prevent phytotoxicity. Can also be used per square meter 97% hymexazin WP 1 g, 3 kg of water, soil before and after sowing, or 12.2 ml of 12.2 kg water, 1 kg of water evenly sterilized. 2. Before planting, 4 kg of 50% chloronitrobenzene or 50% of powdered chloronitrobenzene should be used to produce 1 kg of powder, and 20-30 kg of finely mixed soil shall be mixed into the soil and evenly spread on the ground. Break into the topsoil. 3. The high-temperature dwellings in the greenhouse are smoked or sprayed at the same time. 15 days before planting, cover the film, fertilize the soil and ridicule the soil at high temperature after the ridging, and use the poisonous toxin or bacteria and g to prevent the temperature of the ground, column, gable, back wall, and membranes from spraying after spraying, or use 45% per acre. 200-250 grams of chlorothalonil smoke agent or 10% fast-kerose tobacco smoke are smoked and sterilized inside the shed. Can also be used per area of ​​110 square meters 250 grams of sulfur powder plus 500 grams of sawdust, and mix well after several places, lit after the smoke in the closed room. (To be continued)
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