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林粮间作是促进杉木幼林生长的一项有效措施,也是充分发挥土地潜力,增加粮食生产的一个重要途径。我省洪雅、筠连、古苓、叙永等地的实践表明,林粮间作,能改善林地土壤理化性状,为杉木幼期生长创造有利条件,一般都能使幼林高、径生长提高50%以上。同时每亩林地还可收入玉米80-100斤,或荞子60-80斤,红苕800斤左右。
Intercropping with forest and grain is an effective measure to promote the growth of young Chinese fir and it is also an important way to give full play to the potential of land and increase food production. Practice in Hongya, Junlian, Guling, Xuyong and other places in our province shows that intercropping with forest and grain can improve soil physical and chemical properties of forestland and create favorable conditions for the early growth of Chinese fir. Generally, the growth height and diameter of young forest can be increased by 50 %the above. At the same time per acre of wood can also be income 80-100 pounds of corn, or buckwheat 60-80 pounds, about 800 pounds of red croaker.