|Table of Contents|

Effect of Black Soil Depth and Subsoil Fertilizing on Soybean Yield(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2012年02期
Page:
266-269
Research Field:
Publishing date:

Info

Title:
Effect of Black Soil Depth and Subsoil Fertilizing on Soybean Yield
Author(s):
KUANG En-jun; LIU Feng; GAO Zhong-chao
Heilongjiang Fertilizer Engineering Research Center,The Key Laboratory of Soil Environment and Plant Nutrition of Heilongjiang Province,Institute of Soil Fertilizer and Environment Resource,Heilongjiang Academy of Agricultural Sciences,Harbin 150086,Heilongjiang,China
Keywords:
Soybean; Black soil; Albic luvisol; Subsoil; Fertilizing; Yield
PACS:
S141.9
DOI:
10.3969/j.issn.1000-9841.2012.02.021
Abstract:
Albic luvisol widely distributed in Sanjiang Plain of Heilongjiang province，and the soil fertility degraded seriously after decades of reclamation.In the present study,based on the vertical distribution of typical highland Albic luvisol,which was black soil(A,0-18 cm),albic horizon(Aw,18-36 cm)and illuvial horizon(B,＞36 cm),indoor stimulation experiments of(ⅰ)increase the depth of black soil from 20 to 60 cm with 20 cm as interval and,(ⅱ)mix the layer of Aw and B and applied phosphate and calcium fertilizer were carried out,to elucidate the contribution of subsoil to soybean yield and the soil amendment effect in Albic luvisol.With the increase of balck soil layers,the plant height and yield of soybean increased,and the calculated contribution rate of subsoil to soybean yield was only 4.7%.Soybean yield of subsoil fertilizer treatments were 9.7%-18.1% higher than subsoil mixing,and 16.0%-34.1% higher than control.Subsoil fertilizing phosphate increased content of Ca2-P,Ca8-P and Al-P.Results suggest that the subsoil fertility of Albic luvisol is lower and subsoil applying phosphate and calcium can improve soil fertility,hence increase soybean yield.

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Last Update: 2014-08-15