Knowledge Base

Identification Code


Project title

Experimental-production studies of cotton crop in-soil irrigation - technique and technology on new developed lands of Hunger steppe.

Project location

The Republic of Uzbekistan, Syrdarya oblast, Akaltyn rayon, Voroshilov's state farm #10a


70.21.33; 70.21.35

Rubric (SIC ICWC); 01.30.03

Project duration


Project manager

Lunev V.G., SPA SANIIRI The Republic of Uzbekistan, 700187, Tashkent, Karasu-4, 11


Studies are dedicated to irrigation water unproductive losses' re­duction, irrigation process automation, and ecological situation improvement. Relief is smooth. Soils - gray desert-meadow, non-saline, with amall spots of slight salinity, light and semi-loam with inter-layers of heavy loam and gypsum and carbonates' content Ground water is slightly saline with water table 2.7-3.0 m (au­tumn-winter). EPP area- 120 ha (net). Irrigation network - in-soil irrigation system, connected with flume network, equipped with gate-regulation devices. Control - furrow irrigation. During process of studies network parameters, irrigation technique elements, in-soil irrigation regimes, providing land use efficiency increase, irrigation efficiency increase, sustainable high crop yields obtaining were amplified. In-soil irrigation technique and technology were developed.

Key words

irrigation technique; in-soil irrigation; water discharge; soils; wa­ter-salt regime; cotton crop


1. Author -StulinaG.V. Title - "Soil water regime under in-soil cotton crop irrigation in conditions of Hunger steppe" Material of the republican agriculture seminar Tashkent, 1979. Results of studies of cotton crop in-soil irrigation technique and technology and soil water regime under various irrigation regimes are given. Optimal in-soil irrigation regime providing uniform wet­ting and irrigation efficiency increase. For conditions of Hunger steppe range of suction pressures relevant to optimal soil humidity was studied. Irrigation norms and depths were given. Specific wa­ter expenses, water saving under in-soil irrigation, and raw-cotton yields were shown.