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:随着速生丰产林的快速生长,林木遮荫面积逐渐扩大,林荫下间作物出现减产带。从1996年开始对距林带1～8m的减产区,通过调整种植结构,选种耐荫作物,进行试验研究。结果表明:麦垄内套种花生,每公顷产2467.5kg,产值7402.5元,比秋种玉米增加产值271.9元。种植白萝卜每公顷产33634.5kg,产值6727.5元,比秋种玉米增加产值226.9元,增收102.4%。种植大白菜每公顷125874kg,增产值1456.7元。秋种青刀豆每公顷产12559.5kg,产值是种玉米的7.3倍,解决了林荫带减产减收问题,实现了增产增收。
: With the rapid growth of fast-growing and high-yielding forests, the shady area of trees gradually expands and the yield reduction occurs among the crops under the trees. Beginning in 1996, a reduction of 1 ~ 8m away from the forest zone, by adjusting the planting structure, the selection of shade-tolerant crops, the experimental study. The results showed that the peanut interplanted in the wheat ridges had a yield of 2467.5kg per hectare and a production value of 7402.5 yuan, an increase of 271.9 yuan more than that of autumn maize. Planting white radish yield of 33634.5kg per hectare, the output value of 6727.5 yuan, an increase of 226.9 yuan more than the autumn planting corn, an increase of 102.4%. Planting Chinese cabbage per hectare 125874kg, increase production value of 1456.7 yuan. Autumn green beans produce 12,559.5kg per hectare, the output value is 7.3 times that of corn, to solve the problem of yield reduction by the forest belt, to achieve a yield increase.