|Table of Contents|

Effect of Water-Fertilizer Interaction on Physiological Characteristics,Nitrogen Fixation and Yield of Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2011年02期
Page:
229-233
Research Field:
Publishing date:

Info

Title:
Effect of Water-Fertilizer Interaction on Physiological Characteristics,Nitrogen Fixation and Yield of Soybean
Author(s):
YAN Chun-juan WANG Wen-bin SUN Xu-gang ZHANG Li-jun WANG Chang-ling CAO Yong-qiang SONG Shu-hong YUAN Yu-lu
Crop Institute,Liaoning Academy of Agricultural Sciences, Shenyang 110161,Liaoning, China
Keywords:
Water-fertilizer interactionSoybean Leaf area index Root nodule Yield
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2011.02.0229
Abstract:
Soybean yield are sensitive to soil moisture at flowering-podding growth stage(R1-R5). Fertilizer application may enhance the effect of soil moisture on yield of soybean, but few reports had focused on it. In this study, pot-experiments were carried out to investigate the effect of water-fertilizer coupling on physiological characteristics, nitrogen fixation by root nodules and yield of soybean. Three moisture levels and two fertilizer application levels were included in this experiment. The results showed that sufficient soil moisture and a certain amount of chemical fertilizer application enhanced the leaf area index,root and shoot biomass. Both drought(W1) and no fertilizer(F0) treatments reduced the leaf area index, root and shoot biomass. The root nodule number of no fertilizer treatments (F0) was superior to fertilizer applied treatments(F1) under the same soil water content condition. Root nodule formulation and biomass accumulation were limited under drought condition(W1). W3F1 treatment had the highest LAI, shoot biomass, nodule biomass per plant and biomass per nodule while W1F0 had the lowest LAI, root biomass and shoot biomass. After harvest, the combinations with the optimal and lowest seed yield, stem/leaf biomass of all treatments were W2F1 and W1F0, respectively. Soil moisture, fertilizer and water-fertilizer interaction had positively effects on stem/pod and seed yield of soybean.

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Last Update: 2014-09-11