Abstract:

Dry direct seeding technology is a simple cultivation technology ,it can save labor and reduce labor intensity. In order to determine the application effects of dry direct seeding technology in mountainous and mid-levels of Yunnan province, a field experiment was conducted with 8 treatments according to cover film or not cover film and different amounts of nitrogen fertilizer, using  Chugeng 27 as material.The results showed that , F12 treatment （cover film, the amounts of nitrogen fertilizer is 180 kg/hm2） had the best effects on increasing grain yield and income. It could be widely used in mountainous and mid-levels of Yunnan province.

Key words: rice, dry seeding, mountainous area, mid-levels

摘要：

水稻旱直播是一项轻简栽培技术，可节省大量劳动力，缓解劳动力季节性紧张的矛盾，具有广阔的应用前景。为探索水稻旱直播在云南山区半山区的最佳栽培技术，以楚粳27为材料，设置覆膜与氮肥用量2个因素，研究了覆膜与否及不同氮肥用量对楚粳27产量和生产效益的影响。结果表明，F12处理（覆膜，氮肥用量为180 kg/hm2）综合表现最好，增产增收效果最佳。

关键词: 水稻, 旱直播, 山区, 半山区