| |
Identification
code |
PP00181 |
Project
title |
Rice
fields water salt regime management on a base of vertical
drainage. |
Project
location |
The
Republic of Kazakhstan, South-Kazakh oblast, Shardarya rayon, “Kyzylkum” collective farm |
Rubric |
70.03.21. |
Rubric
(SIC ICWC) |
01.20.01.15 |
Project
duration |
1975-1979 |
Project
manager |
S.D.
Megai, KazNIIGim
The Republic of Kazakhstan, 484022, Taraz, Koigeldy 12 |
Summary |
Investigations
related to salt control on rice fields by means of territory
drainability and leaching irrigation regime conduction;
rice field water salt regime management on a base of vertical
drainage and its productivity increase.Climate is
sharply continental. Relief is flat.Ground water
salinity -1,2-2,2 g/l, chloride-sulfate type.Soils are meadow-sierozem.
Soil structure corresponds to loam with clay and sandy loam,
slightly saline, chloride-sulfate type.Irrigated area
is 487,8 ha.Sixth wells
with depth 50 m are operating.Irrigation
system in earth channel, specific length - 25-30 m/ha.Experimental
plot is equipped by measuring and accounting means.
In the result
of investigations the recommendations on soil desalinization
and its productivity increase are given. They based on territory
drainability strengthening by means of drainage operation
regime development providing optimal soil water salt regime
of rice fields management during vegetation and non vegetation
periods. |
Key
words |
rice
systems; vertical drainage; water salt regime; desalinization;
rice |
Bibliography |
1.
Authors - S.D. Megai., L.V. Kruglov., V.A. KislinskyTitle - “Vertical
drainage on rice system of Kyzylkum”, KazNIIGim, 1982.Long-term investigations
showed reclamation efficiency of vertical drainage under
rice and alfalafa cultivation.2. Author -
S.D. Megai.Title - “Land
desalinization technology on Kyzylkum rice system on a background
of vertical drainage ”, KazNIIGim, 1980.
On a base of
field investigations salt content cycle change under rice
cultivation and its catch crop on a background of vertical
drainage is revealed. Zones of vertical wells influence
are established. |
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