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《Shandong Agricultural Sciences》 1990-03
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APPLICATION OF PYTHAGOREAN THEOREM IN HIGH-YIELD AND ANTILODGING CULTURE OF RICE

Xu Chuanshan Wang Yongping (Agricultural Bureau of Linyi City)  
Factors causing rice plant lodging are rather complex, but tie main origin is wind and rain in most cases. On basis of observation for many years, the authors find that it reserves the following relations: in lodging rice field,practical RStheoratical RS; in unlodging rice field, pratical RS≥theoratical RS, Theoratical RS=(FL~2-EL~2)~(1/2), Here by RS mean row spacing; FL—the flag leaf length; EL—ear-neck length, i.e. the length from panicle top to ear of flag leaf. This conclusion tallies with Pythagorean theorem, which states clear relationship of varieties, culture methods and climate to plant lodging. It provides theoretical parameters for resolving the contradiction of high yielding to plant lodging, and for instructing field production and variety selection.
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【Co-citations】
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1 XU Chuan-shan, ZHENG Si-ren, DING Xu-fei,SUN Xue-ting, JIN Xing-wang, WANG Jing (Lanshan Agricultural Bureau of Linyi, Linyi 276003,China);Study on theory of time and space and technique of rainfed nursery and intensive cultivation for rice[J];Shandong Agricultural Sciences;2001-02
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1 WANG Yun-xia1,WANG Xiao-ying1,YANG Lian-xin1,*,ZHU Jian-guo2,LI Pan-lin1,Kazuhiko Kobayashi3,WANG Yu-long1(1.Key Laboratory of Crop Genetics & Physiology of Jiangsu Province / Key Laboratory of Crop Physiology,Ecology and Cultivation in Middle and Lower Reaches of Yangtze River of Ministry of Agriculture,Yangzhou University,Yangzhou 225009,Jiangsu,China;2.Institute of Soil Science,Chinese Academy of Science,Nanjing 210008,China;3.Department of Global Agricultural Sciences,Graduate School of Agricultural and Life Sciences,University of Tokyo,1-1-1 Yayoi,Bunkyo-ku,Tokyo 113-8657,Japan);The Impact of Tropospheric Ozone Concentration Enrichment on Lodging Resistance of Rice[A];[C];2011
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1 Chen Wenfu;Zhang Longbu;Xu Zhengjin;The Relationships between the Characters of Leaf and Stem and the Panicle Weight in Rice Varieties[J];Journal of Shenyang Agricultural University;1987-02
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Chinese Journal Full-text Database 1 Hits
1 Kuang Yong Xia Shitou;Effects of Drought on Growth and Development and Approachs to Promoting Drought Resistance of Rice[J];Beijing Agriculture;2007-36
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Chinese Journal Full-text Database 5 Hits
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