RE-USE OF DRAINAGE WATER AND ITS EFFECT ON SOIL SALINITY STATUS UNDER SUGAR BEET

Document Type : Original Article

Authors

1 Soil and Water Research Institute, Agricultural Research Centre, Giza, Egypt

2 Sugar Crops Research Institute, Agricultural Research Centre, Giza, Egypt

Abstract

The aim of this paper is to study the possibility of reusing drain­age water successfully without hazardous consequences on soil proper­ties. A pot experiment was conducted at the Agricultural Research Cen­ter Experimental Field at Giza. Irrigation waters were of 3 levels of salinities 1000, 2000 and 3000 ppm and were added into soils for three periods 4,5 and/or 5 months in addition to the control (fresh water for 6 months). Results showed the possibility of the re-use of drainage wa­ter for irrigating sugar beet crop. No significant differences in yield oc­curred when irrigation waters of salinities 1000, 2000 and 3000 ppm were used. No problems were developed of soil degradation e.g. salinity, sodicity and/or permeability were observed when these waters were used for 4, 5 and / or 6 months.