| |
Identification
Code |
PP00139 |
Project
title |
Study
of irrigation technique of secondary crops in rice crop
rota-tion |
Project
location |
The
Republic of Kazakhstan,
Shymkent oblast, Chordarya rayon, "50 years of October"
state farm. |
Rubric |
70.21.31;
70.21.35 |
Rubric (SIC ICWC) |
01.30.03 |
Project
duration |
1969-1973 |
Project
manager |
Zhdanov
G.N., KazNIIGiM The Republic
of Kazakhstan, 484022, Taraz, K.Koigeldy str.,
12 |
Summary |
Studies
are dedicated to grounding of alfalfa irrigation effective
methods in rice crop rotations and establishment of optimal
irrigation technique elements providing opportunity of
high alfalfa crop yields obtaining under maintaining and
improving irrigated lands reclamation state. Climate is
continental. Soils - meadow-gray desert, medium saline.
Ground water table is 1.2-1.5 m (in vegetation period),
2.7-3.0 m (in autumn-winter period). EPP with area 35-40
ha are represented by rice irrigation system structure of
maps of Krasnodar type. Alfalfa irrigation - ordinary checks' flooding, in checks
over stripes, over furrows, by overflow irrigation with
the help of ÏÏÀ-165. According to results of studies for
application on Kzylkul rice irrigation system alfalfa furrow
and overflow irrigation with the help of ÏÏÀ-165 was recommended.
Recommended methods allow to reduce irrigation depth to
850-900 m3/ha that is 40-50% less than under ordinary checks'
flooding and gives proper uniformity of soil wetting, reduces
irrigation time significantly, creates favorable water-aerial
conditions for alfalfa, high norm of profitability as well
as the most efficiency of mentioned costs. |
Key
words |
irrigation
methods; water discharge, irrigation regime; irrigation
technique, alfalfa |
Bibliography |
1.
Authors - Zhdanov G.N., Goryunov N.S. Title - "Alfalfa
irrigation in rice crop rotations and rice system structure"
"Hydro-engineering and reclamation", 1972. Results
of studies are given on grounding alfalfa irrigation methods
in rice crop rotations. Their influence on aggregate and
micro-aggregate soil composition, ground water table dynamics,
crops' physiology was defined. Irrigation system parameters
and possibility of different irrigation methods application
were given. 2. Authors - Zhdanov G.N., Bykov V.G. Title
- "Alfalfa in Shymkent oblast" "Forage",
1974. Different alfalfa irrigation methods in rice crop
rotation were considered. Irrigation regime and soil productivity
was given. |
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