陕西黄土高原是我国人口较少耕地较多的地区,现在经济较贫困,农业潜力没有充分发挥。其原因是多方面的,而作物种植不够合理是其中之一。长期以来,这里在粮食与经济体物的安排上就粮抓粮,没有积极发展经济作物,而在经济作物选择上,搞自给自足,不考 The Loess Plateau in Shaanxi Province is a region where the population of our country has less cultivated land. Now the economy is poorer and the agricultural potential is not fully developed. The reasons are many, and the crop is not reasonable enough to grow one of them. For a long time, grain and grain have been taken over grain and economic arrangements, and no active development of cash crops has been made. However, on the choice of cash crops, self-sufficiency has been paid