我区南部塬区,土壤瘠薄,肥料不足,抗御旱、冻等自然灾害能力较低,小麦产量长期徘徊在100斤左右。我所洛川试验站自1974年以来,在油菜田套种草木樨,以油草促小麦,虽然遇到旱、冻等自然灾害,但小麦连年获得高产。1974—1975年度,该站在9亩油菜田套草木樨压青种植小麦,亩产488.9 In the southern area of ​​our district, the barren soil, inadequate fertilizers and low ability to resist natural disasters such as drought and freezing have long-term output of wheat around 100 kilos. Since I started experimenting at Luochuan Station in 1974, we planted ramets in the rapeseed field to promote wheat with oil and grass. Although it encountered natural disasters such as drought and freezing, the yield of wheat has been continuously increased year after year. In 1974-1975, the station planted wheat in 9 mu of canola field planted with grapes, yielding 488.9 mu