No-tillage direct seeding method for seeds and oilseed rape cultivation method based on rice-rice-oil triple cropping system

Abstract

The invention discloses a no-tillage direct seeding method for seeds. The no-tillage direct seeding method comprises the following steps of not performing ploughing, not applying herbicide, not irrigating field soaking water, not performing rotary tillage before planting of next crop, keeping the field surface dry, carrying out harvesting and crushing on the previous crop to obtain the crushed straw of the previous crop, and leaving the stubbles of the previous crop after harvesting; pressing down stubbles of the previous crop, and performing seed sowing of the next crop; and after stubbles ofprevious crop are rebounded, enabling the crushed straw of previous crop to cover on stubble surface of previous crop. The invention also discloses an oilseed rape cultivation method based on a rice-rice-oil triple cropping system; and the soil plough layer structure is changed, a straw layer, a seed fertilizer layer and a soil layer are formed from top to bottom, full-amount returning of crop straw is achieved at a time, the straw is converted into a covering, seeds and chemical fertilizer are covered, the fertilizer utilization efficiency is improved, and optimal coupling of crop straw treatment, mechanical production and crop growth is achieved.

Description

technical field [0001] The invention relates to the field of cultivation technology, in particular to a method for direct seeding without tillage and a method for cultivating rapeseed based on rice-rice-oil three-ripening system. Background technique [0002] According to statistics, the total national grain output in 2018 was 657.89 million tons, estimated based on the grain-to-stalk ratio of 1:1.2, plus other crop stalks, the country’s annual production of stalks exceeds 800 million tons, which contain a large amount of organic matter, nitrogen and phosphorus Potassium and trace elements, the nutrient content of nitrogen, phosphorus and potassium in 720 million tons of stems is equivalent to 6.4 million tons of urea, 9.3 million tons of superphosphate, and 9.3 million tons of potassium sulfate. [0003] Experiments have proved that returning crop stalks to the field by pressing or covering them is an effective measure to increase yield by more than 10%. However, crop stalk...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: in order to solve the problems of difficulty in straw treatment, large amount of water used for soaking fields, impact of herbicide application on the environment, long agricultural consumption for stubble replacement, many weeds and easy lodging in direct seeding production, a no-tillage plant is provided. The method of direct seeding realizes no-tillage, no burning of straw, no irrigation and soaking of field water, no application of herbicides, and direct seeding of the next season's crop seeds

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