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《Guangxi Agricultural Sciences》 2010-11
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Foliar spray of fertilizer on rice plant crop before harvest and its effect on shoot emergence and yield of ratoon rice

WEI Feng-wu1,YANG Ri2,LIU You-guang1,OU Yang-zhong1,ZHANG Han-zhou1,WEI Yun-qu1(1 Agricultural Technology Extension Station of Rongshui County,Rongshui,Guangxi 545300,China;2 Liuzhou Seeds Station,Liuzhou,Guangxi 545001,China)  
In order to make full use of temperature and light resources in middle rice growing area,and to improve multiple crop index,production and income of farmers,the fertilizer was foliarly sprayed on rice variety Zhongzheyou 1,at different periods before harvest.The results showed that foliar spray of fertilizer on plant crop 8-12 d before harvest accelerated the emergence and enhanced yield of ratoon rice.The rate of germination was the highest when fertilizer was sprayed 12 d before harvest.The spray also resulted in longer growth stage(69 d),higher effective panicles(300.9×104 panicles/ha),grain number(84.13 grains per panicle),filled grain number(71.83 grains per panicle),seed setting rate(85.38%),and yield(4043.1 kg/ha).On the basis of the results,foliar fertilizer spray method may be extended in the middle rice planting areas.
【Fund】: 柳州市科学研究与技术开发项目(2007030703)
【CateGory Index】: S511.062
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