Rice micro-ridge mixed sowing cultivation method

Abstract

The invention discloses a rice micro-ridge mixed sowing cultivation method. The method comprises the following steps: S1, draining water in the mature period of preceding crops until a harvester can work; S2, harvesting the preceding crops, reserving stubbles, smashing straw of the preceding crops and then scattering smashed straw on the reserved stubbles so as to form rhizosphere layers for ricegrowth; S3, performing ditching in the field to form ecological ditches; and S4, flattening the vertical stubbles and the crushed straws on the compartment surface to form a lower cushion surface, forming a seed, fertilizer and mud compound into a ridge shape, enabling the compound to fall on the lower cushion surface to form ecological ridges, and forming a plurality of ecological ridges betweenadjacent ecological ditches, wherein the seed, fertilizer and mud compound is obtained by uniformly stirring and mixing rice seeds, a chemical fertilizer and mud in a mass ratio of (6-14):(50-70):(6000-10000). Firstly, the ecological ridges are used as a medium to wrap organisms and vegetative bodies and is heat-insulating, moisture-preserving, water-permeable and air-permeable; and secondly, theecological ridges are used as a donor to provide water nutrition for organism vegetative mass. The seeds which are subjected to accelerating germination and budding in the ridges grow faster than weedseeds in the ridges and outside the ridges, and roots and leaves grow smoothly.

Description

technical field [0001] The invention relates to a rice cultivation method, in particular to a rice micro-ridge mixed sowing cultivation method. Background technique [0002] my country's agricultural resource environment is under the double threat of exogenous pollution and endogenous pollution. The non-point source pollution caused by agriculture has exceeded that of industry, and the sustainable development of agriculture has encountered a bottleneck. According to statistics, in 2018, China's chemical fertilizer and pesticide usage reached 60 million tons (purified) and 300,000 tons (100) respectively, while the utilization rate of chemical fertilizers was only about 35%, and large pesticide residues led to soil degradation, nutrient loss, Waste of resources; environmental pollution, product quality decline. The total annual agricultural water use in my country is 372 billion m 3 , water consumption for rice production is 241.8 billion m 3 (The total water consumption o...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems such as the influence of straw returning to the field in rice production, low utilization rate, shortage of water for soaking the field, large amount of chemical fertilizer, unreasonable time and amount of top dressing, etc. In order to improve the seedling emergence rate and seedling rate of no-tillage and dry seeding of rice, the present invention provides a rice micro-ridge mixed sowing cultivation method, which can improve the utilization rate of chemical fertilizers and reduce the number of soaked fields under the premise of no-tillage and dry sowing. Use less water and pesticides to achieve the purpose of saving fertilizer, water, cost and fertilizing the soil

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