定兴县西关大队农事场,从1970年开始,连续六年播种冬油菜。开始种植面积30亩,亩产达到180—250斤,1978年秋播20亩,亩产293斤,1979年秋种30亩,今年遭到春寒、干旱、亩产仍然达到159斤,为种地养地实现粮油双增产积累了经验。具体做法是:一、做好准备,力争早播:秋播油菜要争取在冬前有较长的生育时间,并安全越冬。为此,对前茬作物要促进早熟,争取早腾地。同时把粗肥提前运到地头,每亩施粗 Dingxing County Xiguan Brigade farm, starting from 1970, for six consecutive years planting winter rape. Beginning of the planting area of ​​30 acres, per mu reached 180-250 pounds, autumn 20 acres of 1978, mu yield 293 pounds, autumn 1979 species of 30 acres, this year was cold, drought, still yield 159 pounds per mu for farming Achieve double production of grain and oil has accumulated experience. The specific approach is: First, be prepared to strive for early broadcast: autumn rape must strive to have a longer period of pre-winter childbirth and winter security. To this end, the former crop to promote early maturity, for the early Teng to. At the same time, the crude fat was transported to the ground in advance, and the amount of coarse grass per mu