Cost-saving synergistic green manure milk vetch winter sowing method

Abstract

The invention discloses a cost-saving synergistic green manure milk vetch winter sowing method for a double-cropping rice region in the southern part. Milk vetch is sown earlier timely before rice harvesting, then, high stubbles of rice are reserved for harvesting, harvested straw is returned to a field properly, on the basis of water spraying, urea applying and transformation promoter spraying and other measures, coverage straw decomposition is promoted, on one hand, the surface temperature is increased, and the soil water content is kept; on the other hand, milk vetch nutrients can be supplied, rice field soil fertility is improved, then, germination before winter and seedling growth of milk vetch seeds are facilitated, then, before overwintering, ditching is performed, the rice field soil water content is effectively regulated, the phenomenon that milk vetch seedlings are subjected to rice field water accumulation contamination damage in winter is avoided, by adopting the method, temperature, water and nutrients needed by germination before winter of milk vetch in the double-cropping rice region in the southern part are ensured and regulated, and compared with seed sowing afternormal late rice harvesting, the germination rate and the seedling growth vigor of milk vetch are remarkably improved.

Description

technical field [0001] The invention relates to a planting method, in particular to a cost-saving and efficiency-enhancing winter sowing method of green manure milk vetch. Background technique [0002] Milk vetch is an important part of southern ecological agriculture. Its main functions are as follows: First, milk vetch can activate and enrich soil nutrients, and root nodules of milk vetch can fix air nitrogen. Second, the use of milk vetch can provide balanced nutrients for subsequent crops and improve crop yield and quality. Third, pressing milk vetch is an important measure to fertilize the soil. Fourth, milk vetch is a clean organic fertilizer, without heavy metals, antibiotics, hormones and other residues that may exist in chemical fertilizers and livestock manure, which is conducive to the production of pollution-free agricultural products. Fifth, the use of milk vetch plays an important role in energy saving and emission reduction. Planting milk vetch can reduce t...

AI Technical Summary

Problems solved by technology

Milk vetch has a certain ability to resist cold, but when the temperature is too low, milk vetch seeds are not easy to germinate, and even if they emerge, they are vulnerable to freezing damage and cannot survive the winter; although milk vetch is a green manure in rice fields, it likes humidity but is not resistant to waterlogging, and the soil is dry (emergence) period) or poor drainage (often occurring during the wintering period) also seriously affects the growth of milk vetch

In actual production at present, late rice in the southern double-cropping rice area is generally harvested from late October to mid-to-early November. If milk vetch is sown after the late rice is harvested according to conventional measures, the temperature will be lower at that time; and the late rice harvest generally chooses a period with less precipitation , the soil is relatively dry at this time; moreover, when the late rice is harvested, most of the fertilizer applied in rice production has been absorbed by the late rice, or it is fixed in the soil, or it is lost or volatilized and becomes a source of water and air pollution, which can be used by milk vetch. limited, the above factors often lead to low emergence rate of milk vetch in southern double-cropping rice areas, weak plants, poor growth, difficult to overwinter, and difficult to form considerable biomass after overwintering, so its green manure effect cannot be fully exerted, seriously affecting farmers and farmers. Enthusiasm of Planting and Utilizing Milk Vetch in Agricultural Production Department

On the other hand, traditionally, people often increase the amount of sowing to pursue higher biomass, but this not only causes waste of seeds, but also increases the economic burden of farmers and agricultural production departments.

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