Mixed-sowing method of forage grass in high altitude area of Three Gorges reservoir area

Abstract

The invention discloses a mixed-sowing method of forage grass in a high altitude area of the Three Gorges reservoir area, comprising soil preparation before sowing, mixed sowing and fertilizer application, wherein the mixed sowing means mixed sowing of orchard grass seeds, trifolium repens seeds and alfalfa seeds, and specifically comprises the following steps of: performing row-spaced drilling on the orchard grass seeds and the alfalfa seeds, with row spacing of 0.3m; and uniformly sowing the trifolium repens seeds among the rows of the orchard grass seeds and the alfalfa seeds, wherein the dosage ratio of the orchard grass seeds to the trifolium repens seeds to the alfalfa seeds is 1: (1 to 1.6): (1 to 1.6), in parts by weight. The leguminous forage grass and gramineous forage grass selected for the mixed-sowing of forage grass disclosed by the invention are featured with heat resistance, drought resistance and leanness resistance, and are mixed-sowed with each other, thus adequately utilizing light energy and increasing photosynthates; additionally, the leguminous forage grass has a high protein content and the rhizobia of the leguminous forage grass has a function of nitrogen fixation, thus remarkably increasing the yield of the forage grass, and improving the quality of the forage grass and soil fertility, so that the advantages of the leguminous forage grass are very prominent. The method disclosed by the invention is simple and convenient, and simple in operation; and the artificial pasture established by the method has the characteristics of heat resistance, drought resistance and leanness resistance.

Description

technical field [0001] The invention relates to a pasture seeding method for building an artificial grassland, in particular to a pasture seeding method suitable for subtropical high-altitude regions. Background technique [0002] At present, there are relevant reports at home and abroad on the mixed sowing method of pasture and pasture in artificial grassland, and there are many methods. However, due to the different ecological environments of the mixed-sowed grasslands, the proportion of mixed-sowed grass species and the yield of grasslands were quite different. For example: New Zealand usually adopts the mixed sowing method of "perennial ryegrass + white clover". If this method is used to build artificial grassland under high temperature and humidity conditions, it will show that the two grasses are difficult to over-summer, the persistence is reduced, and the yield is low. Problems such as poor quality, especially in geographical environments such as the Three Gorges Re...

AI Technical Summary

Problems solved by technology

However, due to the different ecological environments of the mixed sowing grasslands built by each of them, the proportion of mixed sowing grass species and the yield of grasslands are quite different.