论文部分内容阅读
一、我国油菜生产概况1.油菜在我国种植分布情况油菜属于十字花科芸薹属,是我国主要油料作物和蜜源作物之一,栽培遍及全国,面积占全国油料作物总面积的40%以上,产量占全国油料总产量的30%以上,居世界首位,全国种植面积为8800多万亩,年产500多万吨。油菜在全国各地均有分布,但主要分布在长江流域、云贵高原,其次是渭河流域、黄淮平原和钱塘江流域等。据近几年的统计资料,油菜面积较大的省有四川(1099万亩)、安徽(1192万亩)、湖南
I. Overview of rapeseed production in China 1. Distribution of rapeseed cultivation in China Brassica oleracea belongs to cruciferous Brassicaceae, and is one of the major oilseeds and nectar crops in China. It is cultivated throughout the country and occupies over 40% of the total oilseed crop area in China. Its output accounts for more than 30% of the total oilseed output in the country, ranking first in the world. The planting area in the country is more than 8800 mu with an annual output of more than 5 million tons. Rape is distributed all over the country, but mainly distributed in the Yangtze River Valley and the Yunnan-Guizhou Plateau, followed by the Weihe River Basin, the Huang-Huai Plain and the Qiantang River. According to statistics in recent years, the provinces with larger rapeseed areas include Sichuan (10.99 million mu), Anhui (11.92 million mu), Hunan