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我县欢喜岭大队,位于长白山,海拔680米。1975年试种49亩玉米、小麦间作,块块土地夺得双高产,其中五队10.7亩间种地,平均亩产822斤。近几年面积扩大很快,收到增产效果。他们的具体做法如下:一、间种密植。玉米、小麦二比二间种,玉米垅宽1.7尺,株距6—7寸,早春顶浆打垅,玉米于5月上旬播种,人工挖竣,等距播种,每亩保苗5,000—5,800株。小麦行距8寸,每亩保苗30万株左右。二、三肥下地。在早春整地前,每亩施农家肥10立方米。播种时,小麦亩施硫酸铵20斤,玉米亩施腐肥1,000斤。
Hailing Ridge Brigade, located in Changbai Mountain, 680 meters above sea level. 49 acres of corn planted in 1975, intercropping wheat, block land won double high yield, of which 10.7 acres of five groups of species, the average yield of 822 pounds. In recent years, the area has expanded rapidly and received a boost in production. Their specific practices are as follows: First, a close planting. Maize and wheat, two to two species of corn, 1.7 meters wide and 6-7 inches wide. In early spring, the top-hat was stabbed. Corn was sown in early May. Artificial dredging was completed at an interval of 5,000-5,800 seedlings per mu. 8 inches of wheat row spacing, seedlings per acre 300,000 or so. Second, three fat under the ground. Prior to site preparation in early spring, farmers applied fertilizer 10 cubic meters per mu. Sowing, wheat acres of ammonium sulphate 20 pounds, corn mu Shi fertilizer 1,000 pounds.