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High-yielding Cultivation Techniques of "Qinyou No.7"
"Qinyou No. 7" was selected by the Shaanxi Provincial Canola Research Center and has the characteristics of high yield, high oil content, strong adaptability, and strong disease resistance. In 2002, the province introduced demonstration planting, and the average mu production was more than 200 kg. Its high-yielding cultivation techniques are as follows: 1. Fine soil preparation, early sowing and timely sowing 1. Fine soil preparation: Rape seedlings should be transplanted and transplanted. We must choose the soil with loose soil to loosen the land for the formation of a flat bed. Basal fertilizers are mainly farmyard manure, with n, p, k compound fertilizer and boron fertilizer. 2, timely early sowing: In order to not affect the cultivation of the crop, the sowing date of "Qinyou No. 7" should be 7-10 days earlier than other rapeseed varieties, the best sowing date is September 1-10, the latest Not later than September 15. Second, nurturing strong seedlings, age-appropriate transplanting 1, nurturing strong seedlings: The standard is generally plant type dwarf, root system developed, seedling age 30 days, 6-8 pieces of leaves is appropriate. In order to nurture strong seedlings, sufficient seedbeds should be prepared, and 0.15-0.2 mu of seedbeds should be planted in one mu of farmland in Daejeon. The sowing volume should be controlled under 100 grams. 2. Transplanting at the right age: After nursery, it is necessary to strengthen the management of the seedbed and timely conduct pest control. After three years of true leaves, the nursery will use human fecal urine or urea to conduct a dressing at the seedbed stage to promote growth. After 30 days of seedling age, 6-8 leaves should be transplanted in time. Since Qinyou No. 7 has strong growth advantages, single plants should be transplanted in a single row, and planting density should be 6000-8000 plants per mu. Third, formula fertilization, application of boron fertilizer 1, formula fertilization: due to a longer growth cycle of rape, into the growth phase, the vegetative and reproductive growth simultaneously, the need for a large amount of fertilizer, especially for p, k absorption more It is important that n, p, and k have to be fertilized in a formula. The general ratio is 1:0.6:0.4, not n, p, and k. Daejeon transplants basic fertilizers with 20-30 kg of basic fertilizer, 30 kg of p fertilizer, 8-10 kg of potassium chloride, or 30-40 kg of compound fertilizer of n, p, and k. 2, increase the boron fertilizer: The lack of boron in the soil, will cause rape "flower but not real", so based on n, p, k formula fertilization, but also Mushi Boron 1 kg. Fourth, strengthen field management to ensure high yields. 1. Strengthen field management: After transplanting the field, rapeseed should strengthen field management, prevent and control pests and diseases, and implement tillage and weed control. Timely cultivating, enhance soil permeability, promote root growth and development. Weeding at a proper time to prevent grassland and weeds from depleting soil nutrients and water. Do a good job of prevention and control of powdery mildew, downy mildew and black rot, especially in the early flowering period to strengthen the prevention and treatment of Sclerotinia. 2, to ensure high yield: Before the rape winter, should apply a winter fertilizer, conducive to early spring growth. It is also necessary to top-up the “opening fertilizer†in the “opening period†and the amount of fertilizer should be determined according to the field seedling potential. In order to prevent premature senescence, an extra root dressing should also be conducted in the "flowering stage". In general, 100 grams of potassium dihydrogen phosphate and 100 parts of boron fertilizer are used in mu, and the leaves are sprayed with 30-50 kilograms of water after being dissolved in warm water. For overgrown fields, “paclobutrazol†should be sprayed after spring to prevent madness on the one hand, and on the other hand to promote low branching to ensure high yield and stable yield.