Ecological safe water saving technologies in irrigation zone

摘要

The investigation was conducted on typical gray soil of Tashkent region for determination of soil moisture evaporation dynamic with using 2 kg/m~2 of the straw much and without it. The results of the experiment showed that the evaporation speed is 10 m~3/ha per day ill casy of mulching and is 27,8 m~3/ha per day front uncovered soil surface. It is appointed the efficient of the paper mulch for cotton/irrigation. The irrigation rate decreased for 60--65% in generally for vegetation season.