Micro-ridge mixed sowing cultivation method for dry land crops

Abstract

The invention discloses a micro-ridge mixed sowing cultivation method for dry land crops. The method comprises the following steps: S1, performing dry land ditch cleaning and drainage; S2, harvestingpreceding crops, reserving stubbles, crushing straw of the preceding crops, and spreading the crushed straw on the reserved stubbles; S3, conducting ditching on the dry land to form ecological ditches; and S4, flattening the vertical stubbles and the crushed straw on the compartment surface to form a lower cushion surface, forming a seed fertilizer mud compound into a ridge shape, enabling the compound to fall on the lower cushion surface to form ecological ridges, forming a plurality of ecological ridges between the adjacent ecological ditches, forming ecological recesses between the adjacentecological ridges, and performing Paomashui irrigating once after sowing, wherein the seed fertilizer mud compound is prepared by uniformly stirring and mixing soil, dry land crop seeds and a chemical fertilizer. 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,the ecological ridges are used as a donor to provide water nutrition for organism vegetative mass. The selected seeds in the ridges grow faster than weed seeds in the ridges and outside the ridges, and roots and leaves grow smoothly.

Description

technical field [0001] The invention relates to a dryland crop cultivation method, in particular to a dryland crop 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 perennial sowing area of ​​dryland crops exceeds 1 billion mu. The total output of dryland crops in my country exceeds 400 million tons. According...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is, in order to overcome the problems of crop stalk returning to dry land affecting cultivation, low utilization rate, large amount of chemical fertilizer, unreasonable time and amount of topdressing in dryland crop production, and to avoid the influence of fertilizer basal application on seeding. To improve the emergence rate and seedling rate of no-tillage and dry-seed crops in dry land, the invention provides a micro-ridge mixed-sowing cultivation method for dry-land crops. The purpose of fertilizing, reducing costs, and fertilizing the soil

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