Comprehensive management of spinach downy mildew

Comprehensive management of spinach downy mildew is to comprehensively manage spinach downy mildew.

First, fertilizer and water management protect spinach hi fertile moist, cold, avoid drought, water, fast-growing vegetables. Therefore, it is necessary to supply sufficient fertilizer and water in time for growth. From sowing to saplings, it is necessary to keep the soil moist and ensure seedlings. 3 leaf cultivator weeding grass, breathe and promote root; before the closure of the 6 to 7 leaf period to water with fertilizer, fertilizer and water, promote vigorous growth of spinach, urea can be applied per acre 10 to 15 kg, fertilization method, dry cast after pouring When water is used or when it rains, it can be used for natural fertilization. After sealing, if you want to top-dress, you can flush with ammonium bicarbonate water. If there is a drought during the growth period, it should be carefully poured and moistened. When it rains continuously, it must be drained in time.

Second, the disease prevention and control spinach disease mainly downy mildew, anthrax, to damage the leaves. Insect pests mainly include leafminers and aphids, which should be treated with drugs in time. Control methods: agricultural control is implemented for 2 to 3 years of rotation, close planting, scientific irrigation, clean gardens, timely removal of diseased bodies. Chemical control: diseases can be sprayed with 64% antiviral 500 times liquid, 52.5% fast-eliminating net 1500 times liquid, 70% thiophanate-methyl 700 times liquid, etc. Pests can be used 75% lag 3000 to 4000 times liquid, 0.5% of Hisun 3, 2500 times, 15% of vegetables, 1500-2000 times, and 70% of Aileen, 7000 times, etc.

Third, timely harvest until spinach plants grow to 35 to 40 cm, can be harvested in time, when harvested to remove yellow leaves, dead leaves, diseased leaves, and then sold.

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