Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
권호 표지

Correlations of Irrigation Water Quality to Yield and Quality of Rice Grain

관개용수 수질과 벼 수확량, 미질과의 상관관계 규명

  • 최선화 (농업기반공사 농어촌연구원) ;
  • 최호진 (농업기반공사 농어촌연구원) ;
  • 장정렬 (농업기반공사 농어촌연구원) ;
  • 이승헌 (농업기반공사 농어촌연구원) ;
  • 오종민 (경희대학교 환경응용화학부)
  • Received : 2004.11.22
  • Accepted : 2005.01.10
  • Published : 2005.03.30
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Abstract

This study was carried out to investigate the effects of irrigation water pollution on the yield and grain quality of rice. It acquires fundamental data to set up water quality standards for irrigation and produce agricultural safety products. The correlations of BOD, T-N, T-P, pH, ECw of the irrigation water with yield, grain appearance quality, and the protein content were evaluated. The field and pot experiments were conducted by using Japonica of Oryza sativa L. during 2 years. BOD concentration in irrigation water effects strongly on grain appearance quality and yield of rice. T-N in irrigation water has strong effect on the yield, appearance, and quality of rice. T-P concentration in irrigation water have not any correlation with yield and quality of rice. pH showed strongly negative correlation with maturity ratio(MTR), 1000 grain weight(TGW), and yield of rice(YLD) as r=-0.803~-0.828(p<0.001) and have no effect on the appearance quality of rice. $EC_w$ indicating salt content showed strongly negative correlation with MTR, TGW, number of grains per panicles(NGP), and number of panicles per unit area(NPM) as r=-0.759~-0.798, and with YLD as -0.753.

Keywords

Acknowledgement

Grant : 농업용수 수질 요염이 벼 생육에 미치는 영향연구

Supported by : 농림부

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