Knowledge Base
 

Identification Code

PP00080

Project title

Selection of optimal parameters and study of economic and reclamation efficiency of subsurface drainage in North zone of Karakalpakstan (collective farm "Khalkabad")

Project location

The Republic of Uzbekistan, Karakalpakstan, Kegeily rayon, collective farm "Khalkabad"

Rubric

70.23.39.10

Rubric (SIC ICWC)

01.45.01.10

Project duration

1975-1995

Project manager

E.Kurbanbayev, SANIIRI Karakalpak branch, 742000, Nukus, Dospanova str.,12

Summary

Study of alfalfa high yield obtaining possibility in rice rotation maintaining soil-reclamation state of irrigated lands; creation of optimal conditions for main crop-rice; irrigation regime and measures on prevention of seasonal salt restoration in root zone development; soil fertility increase; ground water dynamics management and revealing possibility for its contribution to sub-irrigation. Kyzylkum massif is located on flat plain, soils are meadow-serozem, climate is continental. Soils consist of two layers: top-3m thick made of sandy loam and bottom-60v thick made of sand. Ground water is saline; irrigated area is 40ha; rice system is of Krasnodar type; irrigation canals of twofold action. In result of investigations economically expedient irrigation regime of alfalfa is recommended providing 9.26-10.44t/ha. Irrigation norm and schedule are determined. Amendments to designed irrigation norm under flood, furrow and sprinkler irrigation.

Key words

Alfalfa, ground water level, irrigation regime, agricultural crops, crop rotation

Bibliography

Author: G.N.Zhdanov Title: "Alfalfa irrigation in rice rotation in South of Kazakhstan", TIIMSH, 1974 Irrigation rational regimes are grounded. Ground water input to sub-irrigation is determined. Soil salt regime dynamics is given. 2. Author: G.N.Zhdanov Title: "Alfalfa irrigation impact on soil nutrient and salt regime", TIIMSH, 1975 Results of investigations on soil nutrient and salt regime under different irrigation regime.