|Table of Contents|

Soil Water Supply and Water Use Efficiency of Soybean Affected by Fertilization and Precipitation Patterns(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2012年02期
Page:
224-231
Research Field:
Publishing date:

Info

Title:
Soil Water Supply and Water Use Efficiency of Soybean Affected by Fertilization and Precipitation Patterns
Author(s):
ZOU Wen-xiu1; HAN Xiao-zeng1; JIANG Heng1; 2; YANG Chun-bao1
1.Key Laboratory of Mollisols Agroecology,National Observation Station of Hailun Agroecology System,Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Harbin 150081,Heilongjiang;
2.Graduate School of the Chinese Academy of Sciences,Beijing 100049,China
Keywords:
Soybean; Fertilization; Soil water supply; Water use efficiency; Precipitation deficiency
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2012.02.013
Abstract:
Based on the long-term field experiments located in Hailun agricultural ecology station of Chinese Academy of Sciences,meteorological data and soil water content monitored by neutron probe were used to analyze the effect of different fertilizer treatments including no fertilizer(CK),chemical fertilizer(NP)and chemical fertilizer plus organic matter(NPM),on water consumption,soil water supply and water use efficiency(WUE)under rainy year(2006),normal year(2008)and drought years(2001 and 2004).Water consumption rate of soybean reached the peak at flowering-podding stage in views of four years’ observation.Total water consumption of soybean was increased under fertilizer treatments,compared with CK,NP and NPM were increased by 0.92% and 2.21%,respectively,and this effect was more significant in drought years.Soil water supply was another important resource for water consumption of soybean with exception of precipitation.The precipitation from podding to mature was the lowest among whole growth period,and soil water supply of NP and NPM were increased by 11.72% and 23.8%,respectively.The WUE of soybean was showed in the order of CK

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Last Update: 2014-08-15