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《Anhui Agricultural Science Bulletin》 2007-17
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Effect of Potassium Fertilizer Application on the Yield and Quality of Rice

Ye Dingchi1 Lin Hua1 Zhao Peiou1 Xu Junyong1 Yan Wenchao2(1 Wenzhou Agricultural Bureau,Wenzhou,Zhejiang,325000;2 Zhejiang Academy Agricultural Sciences,Hangzhou,Zhejiang 310021)  
Besides variety,cultivation technique,especially fertilization technique can affect the yield and quality of rice.Different potassium fertilizer application quantity and rates were tested,and the results showed that 90㎏/hm2 was the best potassium fertilizer application quantity,and 6∶2∶2 was the preferable potassium fertilizer application rate of basal fertilizer∶tillering fertilizer∶panicle fertilizer.Potassium fertilization in later stage significantly decreased amylose content and raised protein content,resulting in higher edible quality and nutritious quality.Potassium fertilization in later stage was advantageous to product high quality rice.
【Fund】: 浙江省“0406”重大科技项目(2004C12020);; 浙江省温州市2002年度科技项目(N2002A14)。
【CateGory Index】: S511
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1 WANG Xiao-bo~(1,2,3),SONG Feng-bin~1(1.Northeast Institute of Geography and Agricultural Ecology,Chinese Academy of Sciences,Changchun 130012,China;2.College of Agronomy,Jilin Agricultural University ,Changchun 130118,China;3.Graduate School of Chinese Academy of Sciences,Beijing 100039,China);The analysis of the effect of N,P and K on amylose content[J];System Sciences and Comprehensive Studies in Agriculture;2005-02
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