With the pollution-free, pollution-free autumn cabbage more and more favored by consumers. Therefore, we must work hard to plant a kind of pollution-free autumn cabbage.
First, establish a production base. First, the base must be far from the sources of harmful substances, and secondly, the soil, air, and water quality of the base should be monitored. All indicators must meet the quality standards for the production environment of pollution-free agricultural products. The pollution-free autumn cabbage has high requirements for soil fertility and various supporting facilities must be complete.
Second, implement a reasonable rotation. When planting pollution-free autumn cabbage, it is necessary to choose a cornice to avoid continuous cropping with similar vegetables in order to reduce pests and diseases, increase yield, and improve quality. Generally, onion, garlic, and wheat bran are preferred.
Third, use strong resistance seeds. Can reduce the amount of pesticides and reduce pollution. Use locally grown disease resistant varieties to achieve a reasonable mix. Seeds are treated and disinfected.
Fourth, increase the maturity of fermentation of organic fertilizer, fertility and fertility.
Fifth, timely sowing. Autumn cabbage sowing time can not be too early, it can not be too late, too early damage to pests, too late to affect the maturity of the general sowing period from the beginning of mid-July, the end of the end, and strive to do a seed preservation seedlings.
Six, rational fertilization. Mainly organic fertilizer, autumn cabbage in different growth period absorption of different amounts, before the rosette period accounted for 10% of the total needs of fertilizer, 90% of the ball stage, according to this law, should be three times after the fat, that is, raising the seedlings Fertilizers, agglomerated tree fertilizers and nodulizers are the best for top dressing with cake fat. The fertilizer has a smooth and lasting effect, long-lasting fertilizer and good fertilizer efficiency.
Seven, science irrigation. Before the seedlings reach the group tree, the small water ground irrigation; after chasing hair tree fertilizer after pouring a big water; rosette period dry wet and wet; the core period of pouring a big water, before the harvest 10 days of water, more water season, pay attention to eliminate Guilty.
Eight, disease prevention and pest control. There are three main diseases of autumn cabbage, namely virus disease, soft rot, downy mildew, control methods: selection of disease-resistant varieties, rational rotation, rational fertilization, scientific water, pull out the diseased plants, strengthen management, use high efficiency, low toxicity, Low-residue pesticides for comprehensive treatment. Insect pests are mainly yellow striped hopbees, cabbage caterpillars, aphids, and night robbers. The control methods are controlled by artificial, pharmaceutical, and biological means. The best choices are Trichogramma beetle, Golden wasp, Parasitic fly, Beauveria bassiana and other biological measures. Prevention.
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