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一青海省种植的油料作物有小油菜、大辣芥、胡麻、红花、芸芥、白芥、大麻和向日葵等八种。农民们按照它们对外界条件的一定要求而在不同地区进行栽培。全省1956年播种小油菜33万亩,占油料作物总面积的60%左右。它主要分布于海拔2,700米以上的脑山地区,也就是大通河、湟水和黄河三流域间分水岭以及祁连山脉的两侧,海拔2,900米以上地区种植便渐稀少。小油菜在脑山地区是次于青稞的主要作物,种植面积常占总耕地的25—30%。由于能
A Qinghai Province, the planting of oil crops rape, mackerel, flax, safflower, eru mustard, white mustard, marijuana and sunflower eight. Farmers cultivate in different regions according to certain requirements of their external environment. The province sowed 330000 acres of small rapeseed in 1956, accounting for about 60% of the total area of oil crops. It is mainly distributed in the Sanshan area at an altitude of 2,700 meters above sea level. That is, the watersheds between the Datong River, the Huangshui River and the Yellow River three basins, and the two sides of the Qilian Mountains are planted gradually with an elevation of more than 2,900 meters above sea level. Small rape is the second major crop of barley in the brain-stem region, and the acreage often accounts for 25-30% of the total cultivated land. Because of it