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Organic vegetable carrot cultivation and storage
First, the conditions of production of organic vegetables, carrots, the production of the environmental indicators should be consistent with environmental standards of pollution-free food production environment. Second, the election site preparation 1, elections for the use of turnip sweet potatoes - mushroom mother - carrots. Maize-peanut-carrot three-year crop rotation system uses oyster mushrooms and peanuts to grow radish. 2. Select the land to use deep sandy soil with good drainage, deep soil and convenient drainage and irrigation. Before the harvest, timely extirpation and deep-seedling, extirpation depth 12-15cm, deep-depth depth 30cm or more. 3, soil preparation and fertilization in spring preparations, every 667 square meters (1 acre) before the application of high-quality full-fermented farmyard fertilizer 4000-5000 kg, after the ridge ridges in time, ridge width 65cm. When ridging, apply compound fertilizer 10-15 kilograms deeper. III. Variety selection and treatment 1. Selection of species According to the type of local production ecological conditions and market demand, suitable varieties with suitable ripening period, high yield and high quality should be selected according to local conditions, such as a wax, five-inch ginseng and Kuroda seven-inch carrot. 2. Seed selection seeds should be selected as new seeds. Before sowing, they must be selected, and the seeds and impurities should be excluded. The purity of the seeds should reach 95%, the purity should reach 90%, the germination rate should reach 80%, and the quality should reach level 2. 3. Seed treatment before sowing, drying for 2 days. After removing the seed bristles, pour the seeds into 40°C water for 2 hours soaking. Drain the water and put it on the temperature of 20-25°C to germinate for 3-4 days. Seed When exposed, you can sow. Fourth, timely sowing date should be determined according to the characteristics of varieties, natural conditions and the pre-acquisition period of local carrots. Generally, on June 15-20, mastering the lyrics on the ridges in a timely manner, double-row seeding, sowing depth of 2cm, with the sowing with the cover with the suppression. 1-31.6 million seedlings per 667 square meters, with the amount of 0.5-0.64 kg. V. Fine management 1. Spraying and weeding: (1) Pre-emergence soil treatment Before seeding, use 200-250 ml of 48% diammonium emulsifiable concentrate per 667 square meters, or use 80% Abracholine WP 70 - 130 grams of soil treatment. (2) Post-emergence shoots and leaves treatment In the 1-2 leaf stage of carrots, use 50% paracetamol WP for every 667 m2 and spray 50 kg for seedlings; or in the early stage of 3 weeds, 80 % Araethylen wettable powder 70-130 grams, 50 kg watered for spraying. 2, after the seedlings Dingmiao carrot seedlings Qi, in the 1-2 true leaf period manual seedlings, 4-5 pieces of real leaf stage Dingmiao, Dingmiao after plant spacing 6-8cm. 3. Dig up the weeds in time to eliminate the weeds, enhance the activities of soil microorganisms, and promote the healthy growth of seedlings. After the seedlings are established, dig the shovels in time to achieve three shovels and two shovels, and remove the grasses in time before the formation of grass seeds. 4, timely irrigation of 5-6 true leaves and straight root expansion, in case of drought, should be timely irrigation, to pouring enough water, usually 1 irrigation volume of 20-30 cubic meters per 667 square meters, with water Urea 5 kg. 5, prevention and treatment of disease black spot, in the early stages of the disease with 75% chlorothalonil WP 600 times spray. Prevention of black rot, spraying 50% acetaminophen wettable powder 50-100 grams per 667 square meters in the early stage of disease. Sixth, harvest storage 1, harvest carrot harvest time is generally in early October, timely harvest, timely listing. Harvesting too late will reduce the carotene content and yield. Do a single harvest, single transport, single cut, single storage. 2, the quality of the acquisition quality carrots should meet the "all six without" standard, that is carrots neat appearance, no damage, no rotten, no frost, no disease, no bifurcation, no cracking. 3, storage and preservation of carrots should be placed at 0-3 °C, the relative humidity of air is maintained at 90-95%, carbon dioxide is kept in the cellar of 3-7%. It is forbidden to stack with poisonous and harmful articles to ensure no pollution.