Method for planting dry-land Brassica napus by using mulching film corn residual film

Abstract

The invention discloses a method for planting dry-land Brassica napus by using mulching film corn residual films, which is characterized in that the residual films are reserved after mulching film corns are harvested, and the Brassica napus is dibbled by using broken films according to the original specifications, i.e. the ridge width being 1.0m to 1.2m and the ridge spacing being 0.3m to 0.5m, the row spacing being 20cm to 23cm, the plant spacing being 25cm to 30cm, 0.2kg to 0.3kg of seeds per mu land and 5 to 8 grains per pit; when 3 to 5 main leaves grow from the Brassica napus, final singling of seedlings is completed at one step, two seedlings per pit are left and the density is controlled to be 18000 to 20000 plants per mu; and when 6 to 8 main leaves grow from the Brassica napus, the residual films are uncovered, intertillage soil loosing is conducted in combination with application of 8kg to 10kg of urea to promote the seedlings and the soil among ridges is lifted up to the ridges for planting the Brassica napus. By reusing the residual films, the method effectively solves the problems of insufficient soil moisture, low ground temperature, uneven emerged seedlings, poor seedling growth and high field management labor input from the sowing to the stage of the dry-land Brassica napus with 8 main leaves, realizes the tillage-free and drought-resistant cultivation of the Brassica napus, and achieves the goals of cultivating strong seedlings, saving the cost and increasing the efficiency during Brassica napus production.

Description

technical field [0001] The invention belongs to the technical field of oil crop cultivation, and in particular relates to a no-tillage and drought-resistant planting method of rapeseed. Background technique [0002] rape( Brassica napus ), Brassicaceae, Brassica, is the main source of vegetable oil for human consumption. Rapeseed planting mainly includes paddy field rapeseed with rice as the fore-crop and upland rapeseed with corn and flue-cured tobacco as the fore-crop. Among them, the sown area of ​​dryland rape in Yunnan has reached more than 2 million mu, accounting for more than 50% of the province's rapeseed area. It is mainly distributed on hillsides and terraces where the altitude is above 1800 meters, the effective rainfall is below 300 mm during the growth of rapeseed, and there is no irrigation condition. [0003] Rapeseed is usually sown in September-November and harvested in March-May of the following year. The period includes sowing management, seedling mana...

AI Technical Summary

Problems solved by technology

At the same time, the ecological conditions of rapeseed in these areas are poor and the economy is underdeveloped. With the rapid development of urbanization, a large number of rural laborers go out to work, and the labor input for rapeseed production is seriously insufficient. It is urgent to propose a simplified planting model

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