Problem of saving resources on Danube rice irrigation systems by re-using drainage-waste waters

Abstract

The purpose. To study opportunity of use of drainage-waste waters (DWW) of rice systems for irrigating rice and companion crops, their influence upon edaphic processes and to develop scientific bases for regulated use of DWW for saving resources and environment. Methods. Field, laboratory-analytical, calculation. Results. Technological scheme of use of DWW of rice systems for irrigating rice and companion crops which ensures saving aqueous and power resources is offered. Conclusions. Results of probes confirm opportunity of use of DWW of Danube rice systems in irrigation farming agriculture under condition of their combined use with fresh water in the ratio 1:1 or 1:2. That enables to save aqueous and power resources, and to prevent pollution of aqueous sources.