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我们从1981～1983年对包谷、黄豆间作方式进行了“二间二”、“二间三”、“二间四”的小区试验和小面积示范,取得了比较显著的增产效果。1984年,又进行百亩(丈量亩)以上的示范推广,“二间二”的间作方式推广了96.4亩,平均每亩比本地间作方式增产39.1％。其中,包谷增产35.3％,黄豆增产102.6％;“二间三”的间作方式推广了28.6亩,平均每亩比本地间作方式增产30.2％,其中,包谷增产20.4％,黄豆增产195.7％;“二间四”的间作方
From 1981 to 1983, we carried out plot tests and small-area demonstration of “two-two”, “two-three” and “two-four” on the way of corn and soybean intercropping in 1981 ~ 1983 and achieved remarkable yield increase effect. In 1984, an additional demonstration of more than 100 mu (mu) was carried out. The inter-working method of “two in two” was popularized to 96.4 mu, an average increase of 39.1% over that of local intercropping. Among them, the increase of 35.3% Valley, soybean yield 102.6%; “two three” intercropping methods to promote the 28.6 acres, an average of 30.2% increase per mu than the local intercropping methods, of which 20.4% increase in Valley Valley, soybean yield 195.7%; “ Between four ”interzuo party