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晋杂四号高粱是山西省汾阳农科所选育的高粱杂交种。锦西县钢屯公社钢西大队1972年从山西引入后,种了1.4亩,折合亩产1,120斤,比相同条件的晋杂五号小区增产14%。试验地土质肥沃,地势平坦,前茬是玉米,早春顶浆打垄,每亩施底肥1万斤。5月5日播种,垄宽1.5尺,垵距5寸,每亩保苗7,500株。幼苗放3片叶时,进行人工手间苗,5片叶时,一
Jin mixed sorghum No. 4 Shanxi Fenyang Institute of Agriculture bred sorghum hybrids. After its introduction from Shanxi Province in 1972, Steel West Brigade of Gangtun Commune in Jinxi County planted 1.4 mu, equivalent to 1,120 kg of mu per mu, an increase of 14% over the same area of Jinchao No.5. Experimental soil fertile, flat, the former crop is corn, spring apricot hit ridge, base fertilizer per acre 10000 kg. May 5 sowing, ridge width of 1.5 feet, 5 inches away from home, seedlings per acre 7,500. Seedlings put three leaves, the artificial hand seedlings, 5 leaves, one