STUDY OF MAIN FACTORS CAUSING YIELD DECREASE OFCONTINUOUS CROPPING SOYBEANⅠ . Eff ects of Decomposing Matters of Roots Continuous Cropping Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:

1998年03

Page:

207-212

Research Field:

Publishing date:

Info

Title:

STUDY OF MAIN FACTORS CAUSING YIELD DECREASE OFCONTINUOUS CROPPING SOYBEANⅠ . Eff ects of Decomposing Matters of Roots Continuous Cropping Soybean

Author(s):

Han Xiaozeng　Xu Yanli

( Heilongjiang Inst itute of Agricultural Modernization,Academia of Sinica, Harbin 150040)

Keywords:

Co ntinuous cro pping so ybean;  Roo ts;  Decomposing ma tters;  Effect sThis study is one part o f natio nal key project coded 95- 01- 05 and Hei long jiangprovincial ag ricul tural key pro ject as well.

PACS:

-

DOI:

10.11861/j.issn.1000-9841.1998.03.0207

Abstract:

In this study, soybea n seeds were t rea ted by decomposed liquids f rom so ybean roo tsunder fix ed temperature. The resul t show s that , one- mo nth decompo sed liquid inhibi tsthe g ermina tion and grow th of soy bean, rating between 18% and 22% ; four o r sixmonth decompo sed liquid has o n sig ni ficant influence on the germinatio n o f so ybean. Inpot culture ex periment, mixing ea rth wi th so ybean roo ts, show ed tha t, soybea n roo t affectedthe fo llow ing so ybean sig nificantly. Compared wi th cont rol ro tat rion field earthmix ed wi th so ybean roo ts reduced 6% - 24% yield, a nd the decrease became larg er w iththe increase o f mixed so ybean ro ot s. Th ro ug h o ne y ear ’s decompo sition, soybea n roo tsmix ed wi th ea rth had o n in further inf lunce on soy bean ’s g row th and yield. The abov eex perment demo nst rates tha t in soy bean productio n, soy bean ro ot s begin to inhibi t fo llowingso ybean g row th at germinatio n, and inihbi tio n ef fect ca n last for tw o years.

References:

[1 ]　刘忠堂, 1993, 对发展我省大豆生产的看法与建议,黑龙江农业科学, 增刊: 1- 4

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Memo:

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