Double-cropping-rice-area oilseed-rape no-tillage and direct seeding cultivation method

Abstract

The invention discloses a no-tillage direct seeding cultivation method for rapeseed in a double-cropping rice area, which comprises the following steps: timely draining and sunning the field before the harvest of the late rice of the previous crop, and digging the ditch after the harvest. The width of the furrow is 133-150 cm, the width of the ditch is 30 cm, and the depth of the ditch is 15 cm; Apply enough basal fertilizer, sow in no-tillage drill method, sow 350‑420g per acre; fertilize at the seedling stage and when the rapeseed buds and bolts, and use 0.2% borax solution or potassium dihydrogen phosphate to fertilize the leaves at the seedling stage and full flower and pod stage respectively. Surface spraying to increase the seed setting rate; regular intertillage and weeding; prevention and control of diseases and insect pests; 30-35 days after the end of the rape flowering period, the seeds in the siliques change from green to yellow and red and can be harvested. The no-tillage direct seeding cultivation method of rapeseed in the double-cropping rice area of ​​the present invention saves labor and labor, saves costs, can alleviate stubble conflicts in the double-cropping rice area, improve the farming system, increase land utilization rate, and increase economic benefits.

Description

technical field [0001] The invention belongs to the field of crop cultivation, and in particular relates to a no-tillage direct seeding cultivation method for rapeseed in a double-cropping rice area. Background technique [0002] Rapeseed has a long history of cultivation, and China and India are the oldest countries in the world to cultivate rapeseed. India is the most planted rapeseed in the world, followed by China, and Canada ranks third. A large part of rapeseed is used to make edible rapeseed oil, which contains a variety of vitamins, such as vitamin A, vitamin D and vitamin E, and is an important source of fat-soluble vitamins for the human body. Vegetable oil is rich in vitamin E, up to 60 mg / 100 g of oil, especially the content of type A vitamin E is as high as 13.2 mg / 100 g of oil, which is 2.58 times that of soybean oil, and it will not decrease much after long-term storage and heating. Sources of vitamin E in foods. The content of phytosterols in rapeseed oil ...

AI Technical Summary

Problems solved by technology

[0004] Constrained by the decrease in the number of rural labor forces and the conflict between rapeseed and rice stubble arrangements, the utilization rate of winter slack rice fields is low after the double-cropping rice harvest