Semi-solid non-tillage dry direct planting method for multi-cropping type paddy rice

Abstract

The invention discloses a semi-solid non-tillage dry direct planting method for multi-cropping type paddy rice. 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 paddy rice seeds; S2, applying base fertilizer on the ditch surfaces on which the straws are paved and spread, and cleaning the ditches; S3, applying the paddy rice seeds on the ditch surfaces, mixing soaked paddy rice seeds with semi-solid biomass materials before seeding, wherein the mixed mass ratio between the paddy rice seeds and the semi-solid biomass materials is (1-6):(90-150); S4, continuously keeping a dry state of the ditch surfaces for 3-7 days without irrigating water after the seeding. According to the semi-solid non-tillage dry direct planting method disclosed by the invention, three-free effects of no tillage and no burning on the straws of the previous crops and no irrigation of field-steeping 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 a multi-ripening rice semi-solid no-tillage and dry direct seeding method in the technical field of rice cultivation. 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, which not only wastes straw r...

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the shortcomings of the existing crops, such as large water consumption for soil preparation and soaking in the field before planting, difficulty in returning the straw of previous crops to the field, resulting in straw burning, low germination rate and emergence rate of dry rice, the present invention aims to provide a multi-ripening rice Semi-solid no-tillage dry direct seeding method, this dry direct seeding method adopts dry sowing, saves the field water, ...

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