Mustard Seedling Cultivation Techniques
Mustard is a famous specialty vegetable in our province. It has cultivated an area of ​​more than 400,000 mu. The mustard is suitable for interplanting with other field crops. It can make full use of the cultivation of winter free field, achieve green winter, reduce the throwing of wasteland, help increase the land force, increase the income of farmers, drive the development of vegetable processing plants and other township enterprises, ensure the annual supply of vegetables, Expand export earnings. The yield per mu of mustard can reach more than 10,000 kilograms, the output value is more than 1,000 yuan, and the economic benefit is high. Now is the season of mustard seedling nursery, now the main points of the technology of mustard seedlings are introduced as follows: 1, selection of varieties used for spring pickled cabbage cultivation of medium-maturing varieties, mainly reduced species, Chaofeng 1, Zhejiang Tong 1, half broken Leaves and so on. The seeds are full and the germination is strong. 2. The seedbeds are to be selected for deep plowed soils, fertile soil, well-drained empty fields, mulberry fields, or orchards. Brassica, cabbage, and other cruciferous vegetables should be avoided. The best choice is semi-shade and the temperature of the microclimate is low. Field blocks. Before sowing, apply 2000kg of perishable human livestock manure per acre. After shallow plowing, apply 15~20kg of superphosphate, 15kg of potassium chloride, and 15kg of ammonium bicarbonate in combination with plutonium to mix the fertilizer and mud, and use 50% of the sludge. Phoxim 1000 times for soil treatment to eliminate underground pests. 3, sowing time for sowing According to the different conditions of the weather and the region, it is advisable to sow in batches from late September to early October (using the live broadcast of Daejeon may be postponed until mid-to-late October). Premature sowing with high temperature, many pests, heavy virus, and the formation of tumorous stems of mustard early, vulnerable to freezing damage; too late sowing is short-term growth before winter, seedlings vulnerable to freezing, small tumor-like stems, low yield. Before seeding, the seed is seeded with mancozeb and other chemicals or soaked in warm soup, washed and dried and sowed. Generally, 50-75g of seeds are used per mu of farmland, and 0.75kg of seeds (8 to 10 acres of transplantable fields) are sown per acre seedbed. When seeding, it is required to perform detailed sowing and uniform sowing. After sowing, 0.5 kg of boron fertilizer is applied per acre seedbed. The boron fertilizer is dissolved by boiled water before application, and evenly mixed with fine soil and covered with seeds for seeding. Use 60% butachlor 100ml or acetochlor 50-70ml and other herbicides to spray the surface, covering the shade net and so on. The conditional promotion of the use of insect nets to cover the isolation and seedlings can greatly reduce insect pests and prevent aphids from transmitting virus diseases. The quality of mustard seedlings can be significantly improved. 4, after the emergence of management after the emergence of the cover in a timely manner, after the seedlings pull the cross after the seedlings, go to the bad to go to diseased plants, so that each seedlings are not squeezed, once every 7 days, usually 2 or 3 times. Seedlings 2 to 3 true leaves, urea 5 kg per mu, pouring water poured during drought, when the rain sprinkle. After every 7 to 10 days, urea 5 kg per application. The nursery site should be kept moist mainly, such as the soil surface is dry, should be cast thin manure or water. 5 days before transplanting, 6-7 kg of urea per acre was used as a starter. Both watering and fertilization should be carried out sooner or later. 5, pest control 2 to 3 times to prevent warts, pharmaceuticals can be used 1.8% EC Erecting exterminate 2,500 times, 10% of the "one-time net" 3000 times and other pesticides alternately used to prevent wingworm transmitted virus disease. Insects such as Pieris rapae, Plutella xylostella, and Spodoptera litura are controlled before egg hatching and high bee-to-larvae 3 instars, with 1% Vecta 3000 times, 15% DuPont Sulphate 4000 times, or 10%. 1000 times liquid spray prevention, pay attention to sericulture safety. 6, strong seedlings Miao Miao standard seedlings, transplanting 4 to 5 leaves, about 1 month of age, no virus infection.
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