发展畜牧业,牧草饲料是关键。人工种草是获得优质高产饲料的一条重要途径。但是,在人多地少的广大农村,如果用耕地单一种草,势必影响粮食生产,草与粮难以兼顾。众所周知,退耕还草是防止水土流失的一条重要途径。但在人多地少的地区,退耕必然影响口粮,尽管各地采取了各种行政措施,但是,退耕工作效果甚微,水土流失仍 The development of animal husbandry, forage feed is the key. Artificial grass is an important way to obtain high quality and high yield feed. However, in a vast rural area where the population is too small, the use of monoculture of cultivated land will inevitably affect grain production and the balance between grass and grain will be compromised. As we all know, returning farmland to grassland is an important way to prevent soil erosion. However, in the area where the population is too small and the land withdrawn, the conversion of cultivated land inevitably affects the rations. Despite the various administrative measures taken in various places, the work of returning cultivated land is ineffective and soil and water loss