Semi-solid non-tillage dry direct planting method for multi-cropping type oilseed rape

Abstract

The invention discloses a semi-solid non-tillage dry direct planting method for multi-cropping type oilseed rape. The semi-solid non-tillage dry direct planting method comprises the following steps of S1, keeping water layers, of which the depths are 1cm-5cm, in ditches before previous crops are harvested, and paving and spreading straws after the harvesting of the previous crops on ditch surfaces to form rhizospheric layers of oilseed rape seeds; S2, applying base fertilizer on the ditch surfaces on which the straws are paved and spread, and cleaning the ditches; S3, applying the oilseed rape seeds on the ditch surfaces, mixing sun-dried oilseed rape seeds with semi-solid biomass materials before seeding, wherein the mixed mass ratio between the oilseed rape seeds and the semi-solid biomass materials is (3-4):(1500-2500), and the water content of the semi-solid biomass materials is 40%-80%; S4, continuously keeping a dry state of the ditch surfaces for 3-7 days without irrigating water after the seeding, and forming semi-solid layers, straw base fertilizer layers and soil layers on the ditch surfaces from top to bottom. According to the semi-solid non-tillage dry direct planting method disclosed by the invention, no tillage and no burning on the straws of winter crops and no irrigation of horse-racing water are realized, and the ecological benefit is obvious; the working energy consumption is reduced, pesticide is not used for cleaning stubbles, haze is reduced, and irrigation water is reduced.

Description

technical field [0001] The invention relates to the technical field of rapeseed cultivation, in particular to a semi-solid no-tillage and dry direct-seeding method for multi-ripening rapeseed. Background technique [0002] According to statistics, my country's total grain output in 2013 exceeded 600 million tons, estimated based on the grain-to-stalk ratio of 1:1.2, plus other crop straws, my country's annual production of straw exceeded 720 million tons. Straw is rich in organic matter, nitrogen, phosphorus, potassium and trace elements. 720 million tons of straw is equivalent to 5.76 million tons of urea, 8.4 million tons of superphosphate, and 8.4 million tons of potassium sulfate. [0003] Studies have shown that crop straw returning to the field is an effective measure to increase production, generally increasing production by more than 4%. At present, most of the crop straw resources in my country are used as living fuel or burned in the field or dumped in disorder, wh...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the disadvantages of the existing rapeseed irrigation water consumption after sowing, the difficulty of returning the straw of previous crops to the field, the burning of straw, and the low germination rate and emergence rate of dry rapeseed, the present invention aims to provide a multi-cooking rapeseed Semi-solid no-tillage and dry direct seeding method, this cultivation method can realize the effective coupling of organic fertilizer, chemical fertilizer, and water resources, and achieve the purpose of water conservation, fertilizer conservation, fertilizer saving, increase in production and cost reduction; realize three exemptions: no-tillage, no-tillage Burn winter crop stalks, avoid irrigation of racing water, and have obvious ecological benefits: reduce energy consumption, eliminate stubble with pesticides, reduce smog, and reduce irrigation water

Images