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Identification code |
PP00062 |
Project title |
Study of soil and ground water salt regime variation
under long-term drainage flow use in production conditions
and achievement of sustainable agricultural crop yield. |
Project location |
The Republic of Uzbekistan, Fergana oblast, Kokand group of rayons, in 6 farms |
Rubric |
70.03.21; 70.03.15 |
Rubric
(SIC ICWC) |
01.20.01.15;
01.20.01.10 |
Project duration |
1963-1986 |
Project manager |
Abbas Usmanov, SPA SANIIRI
The Rpublic of Uzbekistan, 700187, Tashkent, Karasu-4,
11 |
Summary |
Studies are carried out on experimental fields characterizing
different hydrogeological-reclamation and soil-economic
conditions of West
Fergana.Climate is continental. Soil - loam, clay, sandy loam,
and sands underlain by pebbles on different depths 6-11
m and 36-41 m.Experimental fields are drained by horizontal drains
on depth 1.5-2.5 m, specific length - 35-73 m/ha. On-farm
irrigation network in earthen channel with efficiency 0.8-0.82.
Water used for irrigation has salinity degree 2.1-3.1 g/l.Work is directed to definition of physical nature,
establishment of quantitative indicators and revealing of
peculiarities of soil-reclamation processes occurring under
long-term use of highly saline water for irrigation.
Multiyear studies (1962-1986) show possibility of long-term
drainage water use with salinity degree 2.0-3.5 g/l for
irrigation and leaching without damage for lands reclamation
state and agricultural crop yield capacity keeping irrigation
leaching regime on the drainage background. |
Key words |
Salinity; drainage flow; soil salinization; water-salt
regime |
Bibliography |
Author - Usmanov A.Title - "Quantitative, qualitative assessment
and collector-drainage water zoning of West Fergana to use it for irrigation"Dissertation, chapter IV, Tashkent, 1969
Study results were given on investigating soil water-salt
regime, soil-absorbing complex of structure, humus content
variation in soil; crops growth and development; crop production
techniques and cotton crop yield capacity dynamics under
impact of long-term irrigation with saline water. |
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