| |
Identification
Code |
PP00163 |
Project
title |
Establishment
of norms for water consumption and water disposal -under
rice cultivation on the background of horizontal drainage. |
Project
location |
The
Republic of Kazakhstan,
South-Kazakhstan oblast, Shardarya rayon, "Komsomol"
state farm. |
Rubric |
70.03.15 |
Rubric (SIC ICWC) |
01.20.01.10 |
Project
duration |
1971-1975 |
Project
manager |
Magay
S.D., KazNIIGiM The Republic of Kazakhstan, 484022, Taraz, Koigeldy, 12. |
Summary |
Studies
are dedicated to establishment of norms for water consumption
and water disposal and their compounds under rice cultivation
on the background of horizontal drainage, increase of rice
fields soil productivity and rice crop yield capacity. Climate
is continental. Relief is smooth. Soils are meadow-gray
desert, loam with inter-layers of clay and sandy loam. Ground
water table is 5 m, salinity degree is 4.4 g/1, chloride-sulfate
type. EPP irrigated area is 80 ha. Closed horizontal drainage
depth is 1.6 m. Irrigation network - group distributors
and map ditches in earthen channel, specific length is 30
m/ha. Studies showed that drainage type and parameters effect
on structure of rice irrigation norm and water balance
of rice field. Rice crop yields on plot of closed horizontal
drainage are 20-30% higher than on plot of open horizontal
drainage all years of studies. Recommendations were developed
on rational type and design of drainage providing formation
and maintenance of favorable soil reclamation regime of
rice fields, achievement of agricultural high and sustainable
crop yields. |
Key
words |
Water
disposal; water balance; water consumption; irrigation
norm; rice; secondary crops |
Bibliography |
Author
- Magay S.D. Title - "Role of drainage on rice systems"
Express-information "Reclamation and water management",
1987. Results of multi-year studies on Kzylkum rice system
are given on determination and grounding effective drainage
type providing creation and maintenance of favorable reclamation
regime of rice field soils, achievement of high and sustainable
yields of rice crop rotation. Main drainage functions are
defined under rice cultivation in growing and non-growing
periods. |
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