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Identification Code

PP00153

Project title

Land development under sprinkler irrigation (-70, -100M, Rosa-3) on background of permanent horizontal drainage

Project location

Kyrgyzstan, Chu oblast, Moscow rayon, state farm Besh-terek

Rubric

70.21.35; 70.21.31

Rubric (SIC ICWC)

01.30.03

Project duration

1978-1984

Project manager

I.Duyunov, Kyrgyz NIIRI, Kyrgyzstan, 720055, Bishkek, Toktonaliev str.4

Summary

Study is directed to setting soil moisture regime, irrigation norm and depth perfection, soil salination dynamics and ground water salinity under sprinkler irrigation and permanent horizontal drainage, water-salt balance preparation, crops yield definition. Soils-sierozem-meadow and meadow; heavy and medium loam. Ground water salinity is 8.5 g/l. Lands are leached after development. Irrigation method-sprinklers. Crops-alfalfa, sugar beet. Plot area is 14.6 ha. Drainage-subsurface with depth 3.5m. In result of long-term investigations is found that sprinkler irrigation on background of subsurface permanent drainage provides stable soil salt regime within layers 0-1 and l-2m. Non-saline and weakly saline soils prevailed, ground water salinity decreased, load on drainage during growing period was 0.15-0.32 of irrigation norm, optimal pre-irrigation moisture was recommended as 0.7-0.75 FFC.

Key words

Sprinkler irrigation; horizontal drainage; water-salt regime; ground water table; sugar beet; alfalfa

Bibliography

Authors: V.Golovanov, E.Shesler,S.Popova Title: "Solid desalination by sprinkler irrigation in Chu valley of Kyrgyzstan", 1985 Is shown that saline soil desalination is possible under sprinkler irrigation on example of Besh-Terek state farm (1981-1982)