摘要
本文运用概率统计的有关方法 ,研究建国以来我国粮食单产与总产的变化及单产对总产的贡献 ,探讨了不同因素对粮食单产的影响 ,预测 2 0
With some methods of probability and statistics,the changes of unit/total grain yield,contribution of unit yield to total yield were studied,the influences of different factors on unit yield were discussed,and the trend of unit yield by 2030 in China was forecasted.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2001年第3期109-112,共4页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
关键词
粮食产量
影响因素
数学分析
grain yield
influence factor
mathematical analysis
