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Identification
Code |
PP00076 |
Project
title |
Irrigation and water consumption regime of winter wheat
in pre-mountain conditions of Tadjikistan (Shakhristan rayon) |
Project
location |
The Republic of Tadjikistan, Shakhristan rayon, SPA "Zemledeliye" control
point. |
Rubric |
70.21.33 |
Rubric
(SIC ICWC) |
01.20.05.13 |
Project
duration |
1992-1995 |
Project
manager |
Pulatova Sh.S., SPA "Zemledeliye"
The Republic of Tadjikistan, Gyssar rayon, vil. Sharora. |
Summary |
Studies are dedicated to development of optimal water
and nutrient regime of winter wheat providing stable, maximum,
and low-cost wheat crop yield under effective water and
fertilizers use in conditions of north Tadjikistan; development
of scientifically based recommendations on wheat water-nutrient
regime, improvement of planning, water use management, irrigated
lands productivity increase in conditions of water and other
resources shortage.EPP is located on height 1350-1400 m. Soil is serozemic.Ground water is with prevailing of hydro-carbonate.
Total salinity from 0.1 to 0.7-0.9 g/l. EPP soils is medium
loam. Irrigated area - 2 ha. Land use efficiency - 0.92.Irrigation network is a flume canal, farther - in earthen
channel, its efficiency - 0.85-0.90Studies found out that optimal low-cost irrigation
regime of winter wheat is irrigation under soil humidity
70 ± 3% of normal water capacity under combination
of effective norms of mineral fertilizers: N100P60K60.
4.5-5.0 t/ha wheat grain is formed under 2-4 growing period
irrigations on the background of recharge.It is also found out that bioclimatic coefficient (ratio
of net irrigation norm and water balance deficit), which
serves to define irrigation norm, varies within 0- 0.29
(April-September) and within 0-0.44 (October-August).
Dependence between wheat grain crop yield and bioclimatic
coefficient as well as between grain yield and wheat water
consumption. |
Key
words |
wheat; productivity; irrigation regime; water consumption;
soil humidity |
Bibliography |
1. Authors - Pulatov Y.E., Eshanov I.E.Title - "Interaction of wheat irrigation and fertilizers
in north Tadjikistan"Bulletin # 87-94, TNIPI, 1995.Results of studies are given on optimization of winter
wheat water-nutrient regime. Data on crop yield capacity
level and its structure depending on water and nutrient
regime are also given. Proposals are presented for production.2. Author - Pulatov Y.E.Title - "Scientific background of optimizing irrigation
regime of basic cereals crops in Tadjikistan"Abstract of doctorate dissertation, Tashkent, 1996.
Results of studies are described on irrigation regime
of basic cereals, water consumption, and water balance.
Dependence of wheat cereals crop yield on crop productivity
factors is given. Proposals for production are presented. |
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