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所谓水平沟种植牧草,就是指在山坡地上沿等高线开沟起垄的种植方法。它有利于保土、保水、保肥,可以充分利用土、水、光、热、气等自然资源,所以它既是一种水土保持耕作法,又是一种抗旱耕作法,在年降雨量300～500毫米的半干旱山区值得大力提倡和推广。其具体做法是: 一、等高开沟。沟距大小应依不同地形、地力和牧草而定,一般0.5～0.67米。播种时,在伏翻、
The so-called horizontal ditch planting grass, refers to the cultivation of the ridge along the contours of ridge ditching Ridge. It is conducive to soil conservation, water conservation, fertilizer, you can make full use of soil, water, light, heat, gas and other natural resources, so it is both a soil and water conservation farming methods, but also a drought farming method, the annual rainfall of 300 The semi-arid mountain area of ~ 500 mm deserves great promotion and promotion. The specific approach is: First, contour ditching. Gully distance should be based on different topography, fertility and pasture may be, generally 0.5 to 0.67 meters. Sowing, the volt turn,