The technology of summer rapeseed production in northwestern China is a cultivation technique for early-maturing rapeseed in wheat. It is the idle time of wheat in the farmland after 2 to 3 months before harvesting from wheat (green barley), planting early-maturing high-quality rapeseed, harvesting rapeseed or Green feed. There is no contradiction in the mouth, and it does not affect grain production. This technology can improve the utilization of land, light, heat, water and other resources, and increase the planting area of ​​rapeseed.
Increase production and increase efficiency This technology can be used to harvest 40 to 50 kilograms of rapeseed per acre, or 3,000 kilograms of green fodder and rape, and 200 yuan per mu. Linyi Fertilizer Network Copyright
The technical highlights are selected from the special early-maturing high-quality Brassica napus L. C. No. 3, and the feed rapeseed is selected from the double-low rape variety Huaxie No. 1, Huaxie No. 11 and No. 1 Feeding Oil. Linyi Fertilizer Network Copyright
Appropriate planting in the middle and late July of the wheat harvest 3 to 5 days or 5 to 7 days before the wheat harvest. Sowing method after wheat harvest: The rotary tiller is shallowly turned, and the depth of cultivation is about 15 cm. The seeds are mixed with the seed fertilizer and sand and then spread. Wheat oil seeding: The rapeseed seeds are spread in the field 1 to 2 days after the wheat yellow water is irrigated. Sowing amount: 1 to 1.5 kg per mu. Linyi Fertilizer Network Copyright
Field management effective fertilization: Apply 10~15 kg of diammonium phosphate as base fertilizer, and apply 4~5 kg of urea in seedling stage. Linyi Fertilizer Network Copyright
Reasonable close planting: The seedlings of the rapeseed 3 to 5 leaf stage are fixed at a time, and the density is 80,000 to 100,000 per mu. Linyi Fertilizer Network Copyright
Pest control: sprayed with insecticide on the surface of the plot before sowing, and the seeds are seeded with Ruisheng dispersible powder. The seedling stage and the bud stage are sprayed twice with Alika leaf, which can effectively prevent the damage of aphids and diamondback moths. Linyi Fertilizer Network Copyright
Timely harvest: to make green feed, it is generally appropriate to harvest before flowering. Linyi Fertilizer Network Copyright
Note 1 First, pay attention to the use of high-yield, high-quality, high-resistance, strong early-maturing Brassica napus or early-maturing high-quality cabbage-type rapeseed. The second is to choose areas with irrigation conditions. The third is to master the sowing date. The area where the winter wheat is harvested is harvested after the wheat harvest, and the late harvest spring wheat area is taken 5 to 7 days before the wheat harvest and combined with the irrigation wheat yellow water for the sowing. The fourth is the prevention and control of pests and diseases. Linyi Fertilizer Network Copyright
It is suitable for the winter spring wheat (green barley) planting area with good heat conditions in the north. Linyi Fertilizer Network Copyright
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