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Identification Code |
PP00061 |
Project title |
Study of saline drainage water use efficiency in its
formation zones |
Project location |
The Rpublic of Uzbekistan, Fergana oblast, Buvaidin rayon, XX partsyezd' collective farm |
Rubric |
70.03.21 |
Rubric (SIC ICWC) |
01.20.01.15 |
Project duration |
1976-1986 |
Project manager |
Murat Yakubov, Institute of Water Problems of the Academy of Science of the Republic of Uzbekistan
Uzbekistan, 700143, Tashkent, Khodjayev
str., 25a |
Summary |
Studies are directed to assessment of saline drainage
water use possibility and efficiency in its formation zones
to reduce return flow disposal. Experiments are carried
out on soil water-salt regimes management under saline water
use for irrigation and leaching as well as water flow quality.Climate is continental. EPP net area - 94 ha. Irrigation
network - concrete flumes. Drainage network - open horizontal.
Specific length - 45 m/ha. Drains depth - 2.5-3.0 m, collectors
- 4.0 m.During period of experiments keeping irrigation leaching
regime annually and in a long-term period gradual soil desalinization
has been achieved. Ground water salinity decreased from
15 to 5 g/l. Drainage water salinity decreased from 8-10
to 4.4.5 g/l. Under established irrigation regimes along
with improvement of farming culture and lands reclamation
state cotton crop yield capacity increased from 0.7-0.8
t/ha (1977) to 2.8-3.0 t/ha (1986).
Proposals are developed on scientific base on reclamation
regimes' optimization and irrigated lands productivity increase
under saline water use for irrigation. |
Key words |
Irrigation regime; water-salt balance; drainage flow;
saline water |
Bibliography |
Author - Yakubov M.A.Title - "Formation of soil water-salt regime in
growing period under saline water use for irrigation"
This article describes results of field studies of
soil water-salt and nutrient regimes, growth and development
of agricultural crops, water-salt balances of aeration zone,
ground water, and pilot plot as a whole. It shows drainage
flow salinity variation and qualitative composition. |
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