1, species selection. Select high-quality rapeseed varieties with high resistance to fall.
2, ready before broadcast. Applying basal fertilizer, fine soil preparation, basal fertilizer, 1500 kg of organic fertilizer, 50 kg of superphosphate, and 1 kg of boron fertilizer per mu.
3. The sowing date of rapeseed has a great influence on the yield. Seeding is generally started in early October. The end of sowing before October 10th. Per acre sowing amount of about 0.5 kilograms.
4, and time, Dingmiao. About 10 days after emergence, rape seedlings had 2 true leaves, and time seedlings, between weak seedlings, thin seedlings, and bushy seedlings, leaving strong seedlings and healthy seedlings. 4-5 tablets of true leaves are seedlings, leaving 1.8-2.2 million live seedlings per acre.
5, chemical weeding. After sowing, chemical weeding will be carried out again at the 3-leaf stage, with 5% galblastin per gram of emulsifiable concentrate 50 ml, or 15% finely stabilized to kill 50 ml of emulsifiable concentrate, or 10.8% of high-efficiency capsaicin emulsifiable concentrate 30 ml, plus 40 kg of uniform water Spray to prevent new weeds.
6, science fertilizer. Based on the application of basal fertilizer, scientific top dressing is carried out in accordance with the principle of “individual application of seedling fertilizer, increased application of wax fertilizer, and stable application of manure fertilizerâ€. Miaofei is generally divided into two applications. When 2-3 true leaves and 5-6 true leaves of rape seedlings are planted, urea is applied at a rate of 7.5 kilograms per mu, and budding fertilizer is applied at 7.5 kilograms of urea per mu and 7.5 kilograms of potassium chloride.
7, with boron fertilizer. "Double-low" rapeseed varieties are more sensitive to shed fertilizer and must be applied with boron fertilizer to prevent rape from being "flowery but not real". In the seedling stage, use 100 kg of high-efficiency instant boron fertilizer and 30 kg of water to spray uniformly. Bud spray concentration is 0.3% boron solution.
8, pay attention to disease prevention and pest control. The seedling stage is mainly aphids and cabbage caterpillars, which can be controlled by omethoate. In the middle and late period, it is important to prevent and control downy mildew, powdery mildew and sclerotinia. According to the prediction and forecast of pests and diseases, the applicable pesticides should be controlled. 40% sclerotium net wettable powder, 70% thiophanate methyl, or 50% can be used. Carbendazim WP.
9, timely harvest. When the two-thirds of the whole plant is yellowish-yellow, that is, 80% of the whole field is harvested at maturity so as not to cause loss of verticle angle. After cutting, it will be piled to promote full ripening of rapeseed, increase grain weight and increase oil content.
2, ready before broadcast. Applying basal fertilizer, fine soil preparation, basal fertilizer, 1500 kg of organic fertilizer, 50 kg of superphosphate, and 1 kg of boron fertilizer per mu.
3. The sowing date of rapeseed has a great influence on the yield. Seeding is generally started in early October. The end of sowing before October 10th. Per acre sowing amount of about 0.5 kilograms.
4, and time, Dingmiao. About 10 days after emergence, rape seedlings had 2 true leaves, and time seedlings, between weak seedlings, thin seedlings, and bushy seedlings, leaving strong seedlings and healthy seedlings. 4-5 tablets of true leaves are seedlings, leaving 1.8-2.2 million live seedlings per acre.
5, chemical weeding. After sowing, chemical weeding will be carried out again at the 3-leaf stage, with 5% galblastin per gram of emulsifiable concentrate 50 ml, or 15% finely stabilized to kill 50 ml of emulsifiable concentrate, or 10.8% of high-efficiency capsaicin emulsifiable concentrate 30 ml, plus 40 kg of uniform water Spray to prevent new weeds.
6, science fertilizer. Based on the application of basal fertilizer, scientific top dressing is carried out in accordance with the principle of “individual application of seedling fertilizer, increased application of wax fertilizer, and stable application of manure fertilizerâ€. Miaofei is generally divided into two applications. When 2-3 true leaves and 5-6 true leaves of rape seedlings are planted, urea is applied at a rate of 7.5 kilograms per mu, and budding fertilizer is applied at 7.5 kilograms of urea per mu and 7.5 kilograms of potassium chloride.
7, with boron fertilizer. "Double-low" rapeseed varieties are more sensitive to shed fertilizer and must be applied with boron fertilizer to prevent rape from being "flowery but not real". In the seedling stage, use 100 kg of high-efficiency instant boron fertilizer and 30 kg of water to spray uniformly. Bud spray concentration is 0.3% boron solution.
8, pay attention to disease prevention and pest control. The seedling stage is mainly aphids and cabbage caterpillars, which can be controlled by omethoate. In the middle and late period, it is important to prevent and control downy mildew, powdery mildew and sclerotinia. According to the prediction and forecast of pests and diseases, the applicable pesticides should be controlled. 40% sclerotium net wettable powder, 70% thiophanate methyl, or 50% can be used. Carbendazim WP.
9, timely harvest. When the two-thirds of the whole plant is yellowish-yellow, that is, 80% of the whole field is harvested at maturity so as not to cause loss of verticle angle. After cutting, it will be piled to promote full ripening of rapeseed, increase grain weight and increase oil content.
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