吉林省水稻直播技术初探

Preliminary of Rice Direct Sowing in Jilin Province

为明确不同温度、播深、播种量对水稻旱直播出苗能力、产量及其构成因素的影响,以长白25、吉粳88为材料,分析温度、播深、播种量对旱直播水稻产量的影响。结果表明,出苗能力随着播深的增加而降低、随着温度的提升而提高。当播种量为60 kg/hm^2时旱直播水稻产量最高,随着播量的继续增加,产量逐渐降低。

In order to determine the effect of different temperature, ability, yield and yield composition of rice direct sowing. In order to and seeding rate on the yield of the dry direct seeding on ＂changbai sowing depth and seeding rate on the emerging analyze the effect of temperature, sowing depth 25＂ and ＂jijing88＂. The results showed that the emerging ability decreases with the increase of sowing depth and increases with the increase of temperature. When the sowing rate was 60 kg/ha, the yield of the rice was the highest, as the amount of seeding rate continues to in- crease, the yield decreases.