论文部分内容阅读
一、生产现状和问题马铃薯是巫山的主要小春粮食作物,在粮食生产中所占的比重仅次于玉米而居第二位。1987年,马铃薯种植25.91万亩,单产137公斤/亩(折粮),总产3549万公斤,各项指标分别比1949年增长2.01倍、2.04倍、9.23
First, the status quo and problems of production Potato is the main spring grain crops in Wushan, the second largest proportion of grain production in the corn. In 1987, 259,100 mu of potato was planted with a yield of 137 kg / mu (yield), with a total output of 35.49 million kilograms. The indexes increased by 2.01 times, 2.04 times and 9.23 respectively over those of 1949