本文基于对云南富宁县播区的详细调查，得出了该县飞机播种造林成效及其原因。
Based on the detailed investigation in Funing County, Yunnan province, the authors discuss the effect of afforestation by planes and its reason.
东北部生态农业建设区由于耕地面积较少和人口较多的原因，粮食作物播种面积已无压缩余地。
The northeast ecological agriculture region has no space to adjust the crops sown area for the more population and few land.
研制了一种小型适用于小麦玉米两茬平作区的具有深松、播种、施肥功能的玉米免耕播种机，获国家实用新型专利。
A new corn zero tillage seeder with deep loosening and fertilization function, which can be used to seed corn in wheat corn plantation area, was developed.
通过对秋大棚黄瓜5个不同播种期进行栽培比较试验，筛选出适宜北京市大兴区秋大棚黄瓜栽培的适宜播种期。
The appropriate date of sowing of autumn greenhouse cucumber is selected from comparative tests for 5 different date of sowing in Beijing municipality.
对西北部生态农业建设区确定粮食作物播种面积每年压缩0.2％的合理比例；
The northwest ecological agriculture region is defined in the proportion of 0.2% every year;
对西北部生态农业建设区确定粮食作物播种面积每年压缩0.2％的合理比例；
The northwest ecological agriculture region is defined in the proportion of 0.2% every year;
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