Effect of Reuse Agricultural Waste Water on Rice Yield, Water Needs and Efficiency

Document Type : Research articles

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Civil Engineering Department, Benha University, Egypt.

Abstract

In Egypt, the reuse of agricultural drainage water provides a great supplement to the fresh water supply. Government pumping stations (official) and farmers’ small pumps (unofficial) lift water up from drains and direct it back into the irrigations canals for reuse in agriculture water supplies, as water passes through the soil, it absorbs salts leading to differences in the quality of drainage and irrigation water up to certain constrains limits. Therefore, mixing two water types enhanced the overall quality. The present study investigate the effect of reuse of agricultural drainage water on rice crop production, water needs and water use efficiency in KAFR EL SHEIKH Governorate. Field measurements of water and soil salinities were recorded during the study period. Five cases of different water mixes in irrigation of rice during the agriculture summer season to identify the effect of different irrigation water quality with different percentages of water mixes, The fresh water lifted from Meet yazeed canal (main canal) in KAFR ELSHEIKH Governorate, while the drainage water from private drain mixed with different ratios during summer season 2018 to identify its effect on rice production, water needs and soil environmental.

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