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油菜是重要的油料作物,油菜籽的出油率可高达47%。菜籽油除了作食用外,在工业上也有广泛的用途。据不完全统计,全国油菜的种植面积已达1千万公顷,1990年预计总产量可达到1249万吨。由于种油菜成本低,经济效益高,黑龙江垦区也在大力发展油菜种植业。但是现尚无适宜的油菜籽清选机械,造成很大的损失浪费,这严重地影响着油菜种植业的进一步发展。
Rape is an important oilseed crop, with rapeseed oil rates as high as 47%. In addition to food for rapeseed oil, it also has a wide range of uses in industry. According to incomplete statistics, the planted area of rapeseed in the country has reached 10 million hectares. In 1990, the total output is expected to reach 12.49 million tons. Because of the low cost of rapeseed, high economic efficiency, Heilongjiang reclamation area is also vigorously develop rapeseed industry. However, there is no suitable rapeseed cleaning machinery, resulting in a great loss of waste, which seriously affected the further development of rapeseed cultivation.