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THE EFFECT OF SOLID SEEDING ON THE GROWTH OF SOYBEAN ROOT IN HIGH YIELD SPRING SOYBEAN(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2007年04期
Page:
500-505
Research Field:
Publishing date:

Info

Title:
THE EFFECT OF SOLID SEEDING ON THE GROWTH OF SOYBEAN ROOT IN HIGH YIELD SPRING SOYBEAN
Author(s):
ZHANG Jian-xin; LI Jin-song
College of Agronomy,Xinjiang Agricultural University,Urumqi,830052
Keywords:
Spring soybean; Planting density; Spacing form; Root
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2007.04.010
Abstract:
The effect of two planting densities (45.0×104plants per ha,60.0×104plants per ha) and three row spacing (20 cm，30 cm，40 cm)on the growth of soybean root in Heinong 41 was studied under the field.The results indicated that under the same row spacing,high density could reduce greatly the weight of dried root,mainly of the outer annulus’ deep-seated root,restrain the growth of over ground part,increase obviously root-shoot radio,and reduce greatly bleeding and reduce activity of root.Reasonable row spacing could increase the weight of dried root,mainly of the outer annulus’ deep-seated root,hasten the growth of over ground part,reduce root-shoot ratio,and increase bleeding and reduce activity of root under the same of density.Narrower row spacing could make the root disturbing of high density soybean run to equality,and increase the outer annulus’ deep-seated root.Planting density had more effect than row spacing on the growth of root.When the soybean yield was 5063.90kg/hm2,the weight of dried root was 220.0 g/m2at R5,outer annulus’ root accounted for 19% of its total root,deep root at 20~50 cm accounted for 32.1% of its total root,the root-shoot was 0.17,bleeding was 15.98 g/(m2h) at R4.

References:

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Last Update: 2014-10-20