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当前,我省东北部地区油菜生产正在迅速发展。但不论面积或单产与历史最好年份比较差距还很大.反映在技术上是白菜型品种迅速扩大,甘兰型品种过多地强调了早熟性,在栽培上的低密度、低肥力、轻管理现象也越来越突出.这是障碍该地区油菜单产提高的一些关键技术问题。因此,油菜单产不能迅速提高的原因,主产油莱的低热地区甘兰型中晚熟品种的发展问题,迅速提高大面积单产的主攻目标和主要技术措施等问题,应认真讨论.
At present, rapeseed production in Northeast China is rapidly developing. But no matter the area or yield and the history of the best year gap is still quite large.Reclaimed in the technology is the rapid expansion of cabbage varieties, too much emphasis on the type of Brandoulan prematurity, low density in the cultivation, low fertility, light Management phenomenon is also more and more prominent.This is hindering the improvement of rapeseed production in the region a number of key technical issues. Therefore, the reason why the yield of rapeseed can not be rapidly increased, the development of medium and late-maturing varieties of highland sweety type in the low-heat areas where the main oil-producing areas are mainly produced, and the main targets and major technical measures for rapidly increasing large-area yields should be seriously discussed.