麦茬旱稻不同播量对产量形成的影响

Effects of sowing rates on the yield formation of upland rice after wheat

2001年在沂水、费县以旱稻65为材料进行了6个播种量处理的试验,结果表明,随着播量的增加,群体逐渐增大,穗数明显提高。合理的播量,形成了适宜的群体结构,光能利用率提高,光合产物增加,最终产量较高。试验认为以播量75～90kg/hm2较适宜。

The adequate sowing rates were the foundation to ensure enough basic seedlings.The experimental results showed that with the increasing sowing rates,the panicles of per 667 m2 increased apparently.The adequate sowing rates helped to population form the proper of the population structure of the upland rice and improved the photosynthesis.