The method of replanting winter grazing 70 rye in alfalfa field in winter rest season

Abstract

The invention discloses a method for multiply cropping secale cereale in an alfalfa land during winter break. In 3 to 5 days after the last crop of alfalfa is harvested, the alfalfa land is entirely leveled by using a land leveler until the gradient is smaller than 5 degrees, so that the secale cereale can be seeded and harvested; by applying thoroughly-decomposed farmyard manure on the ridge backs of the leveled alfalfa land, the soil fertility and the microbial community can be improved; through the application of an organic fertilizer and the irrigation of a soil layer with the thickness of 20 to 30cm to the fertilized alfalfa winter-break land, the seedling emergence and the preservation of soil moisture of the secale cereale are facilitated; airing is performed for 2 to 3 days after water irrigation; secale cereale seeds are sown in trenches which are formed in the ridge backs of the alfalfa land and have the depth of 5 to 10cm; the protein yield per mu of the alfalfa land in which the secale cereale is multiply cropped is improved by 13.96 to 29.91 tons; the improved amplitude is 13.84 percent to 38.68 percent, which is equivalent to the condition that the area of the original land can be improved by one third, so that the aim of fully excavating and utilizing the existing farmlands is achieved.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to a method for replanting winter grazing 70 ryegrass in the winter fall season of an alfalfa field. Background technique [0002] As people pay more and more attention to food safety, the call for the healthy development of animal husbandry is gradually rising, especially after the melamine and clenbuterol incidents, people attach great importance to the quality of high-quality meat products and dairy products. In order to better promote the healthy and sustainable development of the dairy industry, the No. 1 Central Document of the Twelfth Five-Year Plan proposed the "Alfalfa Development Action for the Revitalization of the Dairy Industry", which set off a climax of alfalfa planting across the country. Yes, this has an impact on land use patterns with my country's 1.8 billion mu of arable land red line and the policy of prohibiting reclamation of natural grasslands....

AI Technical Summary

Problems solved by technology

[0005] In order to achieve the above object, the inventor proposes a method of replanting winter grazing 70 ryegrass in the winter fall season of the alfalfa field. A series of technical means to solve the problems of idle land use, insufficient land moisture conservation, and insufficient quantity of grass products per mu caused by the idling of alfalfa fields in winter, and realize that the alfalfa fields are growing all year round and grass products are produced throughout the year. Increase the output quantity of grass products per mu in alfalfa field, and then improve the overall economic benefits of pasture planting in alfalfa field

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