Identification Code

PP00194

Project title

Field test of subsurface drainage optimal parameters in Bukhara oblast

Project location

Uzbekistan, Bukhara oblast, Alat rayon, c/f "Khodzhayev"

Rubric

70.21.39

Rubric (SIC ICWC)

01.45

Project duration

1990-1993

Project manager

V.Nasonov, SANIIRI, Uzbekistan, 700187, Tashkent, Karasu-4, 11

Summary

Study is directed to soil salination combating and irrigated lands productivity improvement based on background of subsurface drainage and leaching regime of irrigation, drainage parameters definition on desert and meadow-desert soils in Zerafshan delta, water-salt regime management. Climate is sharply continental. Relief is flat. Area is 250 ha (gross). Ground water salinity is 2-60 g/l. Soil- desert and meadow-desert sandy loam, loam (light, medium and heavy), saline. Irrigation network -flumes (80%), rest -in earthen channel. Major crops: wheat (90%), maize for silo (5-6%), cotton (3-4%), vegetables-melons (3-4%). Practical recommendations are developed on subsurface drainage optimal parameters selection for desert and meadow-desert soils in delta.

Key words

subsurface drainage, irrigated lands, desalination, leaching , cotton

Bibliography

4.   Authors: A.Alimjanov, Title: "Shallow subsurface drainage efficiency on meadow soils of Bukhara oblast", SANIIRI, 1995 Soil water-salt regime and balance elements changes under subsurface drainage with various parameters (deep and shallow).