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北镇县示范农场今年在5.9亩地上,进行了“门源”小油菜套种“晋杂四号”杂交高粱的试验,收油菜籽655斤,平均亩产111斤。套种形式:每3尺为一裆,即中间条播两行油菜,小行距7～8寸,播幅2～2.5寸,距油菜两侧3寸各种1行高粱,油菜收获后,高粱形成1.8尺和1.2尺行距的大小垄(见下图)。试验地为沙壤土,肥力中等,前茬为大豆,地势较平,秋翻秋耙,播前每亩撒施猪圈粪6,000斤,耙入土中。3月25日用犁开沟坐水播种油菜(墒情不好),每亩随施过磷酸钙50
Beizhen County demonstration farm this year in 5.9 acres of land, carried out a “door source” small rape intercropping “hybrid Jin No. 4” test of sorghum, collecting rapeseed 655 pounds, an average yield of 111 pounds. Intercropping form: every 3 feet for a crotch, that is, the middle two rows of rape sowing, small row spacing 7 ~ 8 inch, sowing 2 ~ 2.5 inches, 3 inches from the rape on both sides of a row of sorghum, rapeseed after harvest, the formation of 1.8 Ruler and the size of 1.2 feet spacing ridge (see below). The trial for the sandy loam soil, medium fertility, the former crop of soybean, topography is relatively flat, fall autumn rake, before sowing pig sowing 6,000 kg per acre, harrow into the soil. March 25 plow ditches sit sowing water rape (moisture is not good), with acupuncture per acre 50