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Position: Home > Articles > Influence of Different Rates of Nitrogen Fertilizer on Growth and Physiological Characteristics of Super Rice Guiliangyou 2 Modern Agricultural Science and Technology 2013 (4) 15-17

施氮量对超级稻桂两优2号生育特性和产量性状的影响

作  者:
梁仁敏;梁晟;梁景文;韦春项;覃思德;韦贵剑;黄永东
单  位:
广西壮族自治区河池市农业科学研究所
关键词:
桂两优2号;氮肥;生育特性;产量
摘  要:
研究不同氮肥施用量对超级稻桂两优2号生育特性和产量性状的影响,为桂两优2号以及同类超级稻品种筛选出高效施肥模式和高产施肥模式。采用随机区组设计,设6个不同氮肥施用量(0、90、150、210、270、330 kg/hm2)处理,调查其茎蘖穗的生长动态以及产量性状变化。结果表明:桂两优2号在中等施氮水平下才能建立良好的群体结构,利于干物质积累和获得较高产量,施氮肥210 kg/hm2的产量最高,为8 651.7 kg/hm2,其对茎蘖数动态控制及干物质的积累最有利;不施氮处理的产量最低。
译  名:
Influence of Different Rates of Nitrogen Fertilizer on Growth and Physiological Characteristics of Super Rice Guiliangyou 2
作  者:
LIANG Ren-min LIANG Cheng LIANG Jing-wen WEI Chun-xiang QIN Si-de WEI Gui-jian HUANG Yong-dong(Hechi Institute of Agricultural Sciences in Guangxi Zhuang Autonomous Region,Hechi Guangxi 546306)
关键词:
Guiliangyou 2;nitrogen fertilizer;growth characteristics;yield
摘  要:
Effects of different rates of nitrogen fertilizer on growth and physiological characteristics of superhe rice variety Guiliangyou 2 were investigated in order to provide best cultivation regulation and population control in Guiliangyou 2 and similar super rice cultivars.A randomized block experiment was conducted using six different nitrogen fertilizer dosage(0,90,150,210,270 and 330 kg/hm2)to investigate the growth dynamics of stem,tillering and panicle and yield during growing season.The results showed that Guiliangyou 2 in the medium nitrogen levels was able to establish a good group structure,accumulate dry matter and get higher yield.210 kg/hm2 N processing could get the highest yield(8 651.7 kg/hm2),it was beneficial to control the tiller dynamic and accumulate dry matter;the production without nitrogen fertilizer was minimal.

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