南方农业学报2011，Vol.42Issue(12)：1473-1475,3.
不同抛栽密度和施肥水平对杂交稻百优838生长及产量的影响
Effects of different planting density and fertilization level on growth and yield of hybrid rice cultivar Baiyou 838
摘要
Abstract
[Objective]The present experiment was conducted to explore the effects of nitrogen fertilizer application and planting density on growth and yield ofiigh quality hybrid rice cultivar Baiyou 838 in order to provide high yield cultivation techniques to farmers. [Method]A field experiment using application of different nitrogen levels and planting density of a fine grain quality rice cultivar Baiyou 838 was conducted in Beiliu, Cuangxi during late season of 2010. [Re-sult] The number of tillers and effective panicles increased with increase in nitrogen application from 105-225 kg/ha and planting density from 240,000-360,000 plants/ha. Planting density contributed more to increase in number of effective panicles. Nitrogen level had significant effect on the yield of Baiyou 838. The effect of planting density on the yield was highly correlated with the nitrogen application. Under low nitrogen application, the yield increased with increase in plant-ing density, but under high nitrogen application, higher planting density worsened the plant population and resulted in low yield. [Conclusion]The suitable nitrogen application and planting density for Baiyou 838 were 105-165 kg/ha and 300,000 plants/ha, respectively.关键词
杂交稻百优838/栽培/施氮量/抛栽密度Key words
hybrid rice cultivar Baiyou 838/ cultivation/ nitrogen application/ planting density分类
农业科技引用本文复制引用
杨振初,钟光亮..不同抛栽密度和施肥水平对杂交稻百优838生长及产量的影响[J].南方农业学报,2011,42(12):1473-1475,3.基金项目
国家农转资金项目(2010GB2E100354) （2010GB2E100354）
广西农转资金项目(桂科转10100017-25) （桂科转10100017-25）
