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《Plant Nutrition and Fertilizer Science》 2010-02
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Study on fertilizer-N absorption and distribution of soybean [Glycine max (L).] during the seed-filling period

JIN Xi-jun1,MA Chun-mei1,GONG Zhen-ping2,YAO Yu-bo1, DI Wei1(1 Agronomy College,Northeast Agriculture University,Harbin,Heilongjiang 150030,China; 2 National Research Soybean Engineering and Technology Center,Harbin,Heilongjiang 150030,China)  
This experiment was conducted by using15N labeling method with staged design to study nitrogen assimilation and absorption by the soybean plant during the seed-filling period,especially the distribution of fertilizer N among different organs of soybean.The results show that total nitrogen accumulation during the five labeling experiments(0-25 d after beginning of seed-filling) plays an important role in nitrogen accumulation in soybean plant,which is about 291.4 mg/plant,occupies 48.9% to the total nitrogen accumulation in the labeling experiment Ⅴ.The nitrogen accumulation is decreased sharply during the seed filling period,which is from 109.5 mg/plant in the labeling experiment Ⅰ(0-5 d after beginning of seed-filling) to 19.6 mg/plant in the labeling experiment Ⅴ. Nodulation-N is the main source of the plan assimilated N,which is about 67.4%,and nodulations-N accumulation is decreased from 67.5 mg/plant in the labeling experiment Ⅰ to 10.8 mg/plant in the labeling experiment Ⅴ.Fertilizer-N accumulation is also decreased with the seed-filling process,from 42.0 mg/plant in the labeling experiment Ⅰ to 8.8 mg/plant in the labeling experiment Ⅴ.Fertilizer-N accumulation in different organs of soybean in different labeling experiments exhibits the same orders: seedsleavesstemsrootspod walls,and the proportion of seed N accumulation from the fertilizer is increased from 27.9% to 85.0% during the labeling period.
【Fund】: 黑龙江省教育厅骨干教师项目;; 国家“十一五”科技支撑计划(2006BAD21B01 2007BAD89B05)资助
【CateGory Index】: S565.1
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Chinese Journal Full-text Database 2 Hits
1 ZHAI Gui-yu1,2,SHEN Yi-xin1,LIU Xin-bao1,JIANG Hui-xin1,2,GAO chen3(1.College of Animal Science and Technology,Nanjing Agricultural University,Nanjing,Jiangsu Province 210095,China;2.Shandong Provincial Animal Husbandry and Veterinary General Station,Jinan,Shandong Province 250022,China;3.College of Information Engineering,Beijing Normal University,Beijing 100092,China);Effect of Fertilization on Forage Yield and Quality of Wild Soybean[J];Acta Agrestia Sinica;2008-05
2 GUAN Yu,LIU Lijun,DONG Shoukun,ZU Wei,SUN Congshu(College of Agriculture,Northeast Agricultural University,Harbin 150030,China);Effect of nitrogen application on nitrogen content and protein content in soybean plant[J];Journal of Northeast Agricultural University;2009-07
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