섬유

crop yields, watertable depth, and soil salinity in the nile delta, egypt

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 245
the drainage research institute in cairo, egypt, began in 1979 the crash program to acquire a rough quantitative insight into the effect of subsurface drainage on agricultural production in the nile delta. since high watertables and soil salinities are the two main factors affected by drainage, they formed the basis of the study another important component was the assessment of agricultural production. the program was conducted on three sets of twin villages, one 'with' drainage, and the other 'without'. attention was emphasized on five main crops: wheat, berseem, cotton, maize, and rice. this article discusses the relationship between crop yields, watertable depth, and soil salinity
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