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我场从1974年起,连续种植青海油菜门油一号,翻压后作水稻前茬早春绿肥,油菜鲜草量2,000斤左右。由于青海油菜为白菜型油菜,植株矮小、分枝少、秸秆细,叶片不多,作绿肥不尽理想,为选择一种产草量高的油菜品种作绿肥,我场1982—1984年搞了甘蓝型油菜品种比较,先后参加品比的油菜品种有39个。三年品比结果均以江西油菜73-11品种鲜草量最高。1982年亩产为5,236斤,1983年为5,166斤。1984年早春气候异常,低温、干燥、风多、天阴,73-11亩产鲜草量仍在5,000斤水平。
My field from 1974 onwards, continuous cultivation of Qinghai rapeseed oil on the 1st, turn over the pressure after the first rice in early spring green manure, rapeseed fresh weight of about 2,000 pounds. As a result of Qinghai rape as cabbage rape, plant short, less branches, straw fine, not many leaves, green manure is not ideal, for the selection of a high yield of rapeseed varieties for green manure, my field 1982-1984 Brassica napus varieties, rape varieties have participated in the ratio of 39 varieties. Three years of the results are compared to the Jiangxi Rape 73-11 varieties of fresh grass the highest. In 1982, the yield was 5,236 kg per mu and in 1983 it was 5,166 kg. Early 1984 spring weather unusual, low temperature, dry, windy, cloudy, 73-11 acres of fresh grass is still at the level of 5,000 pounds.