| Название практики |
Application of tubular outlet flowmeters |
Irrigation of pastures and hayfield meadows using Simulta-neous Impulse Sprinkling Kit (KSID-10S) |
| Category |
Water resources |
Water resources |
| Tool |
Means and methods of water accounting |
Sprinkling system |
| Field of application |
Use of water resources |
Use of water resources |
| Usability of practice for adaptation to climate change |
Moderate |
Moderate |
| Implemented by |
Institute of Water Issues, Hydropower and Ecology of the Academy of Sciences of the Republic of Tajikistan (IWIHE of the AS of the RTj)
|
Kazakh Water Management Research Institute (KazNIIWKh)
|
| Used by |
Country: Tajikistan
Province: Khatlon Region
District: Jilikul
|
Country: Kazakhstan
Province: Jambyl Region
|
| Local specifics |
- Located in the valley part of the Vakhsh River Basin (river catchment area);
- Deep (below 3 meters) ground water occurrence;
- Middle loamy soils.
|
The site is located in the foothills with significant difference in elevation |
| Practice usage period |
Start date: 01.04.2010
End date: 31.10.2011
|
Start date: 01.01.2006
End date: 31.12.2007
|
| Problem solved through this practice |
Uneven distribution of irrigation water, lack of water accounting means to ensure observance of recommended irrigation norms for cotton |
Water erosion, discharge, uneven distribution of irrigation water, poor yields |
| Tools used in the practice |
Tubular water outlet flowmeter |
Technique and technology for irrigation based on Simultaneous Impulse Sprinkling Kit (KSID-10S) |
| Description of the practice and its results |
Actions:
- Construction of tubular water outlet flowmeter with removable nozzles (procurement of polyethylene piping to make tubular water outlets and matching nozzles);
- Installation of tubular water outlet flowmeter along temporary sprinklers.
Results:
Financial and economic:
saving of irrigation water; low cost of irrigation system automation (total kit cost: $500/ha) with the service life of 5 years.
Technical:
simple design allowing a more even distribution of irrigation water stream among furrows, thus, ensuring the prescribed water supply mode.
Social:
improved working conditions of irrigators; lower labor needs/costs; enhanced mutual trust among farmers and water users. |
Actions:
Deployment of the Simultaneous Impulse Sprinkling Kit (KSID-10S) allowing extremely uniform and simultaneous dispersion of irrigation water across all sections of arable pasture or hayfield meadow. Water expenditure at the impulse device makes 0.05-0.3 l/sec and 0.25-2.0 l/sec in the irrigation pipeline, thus, reducing (3-4 times) the costs associated with the pipeline network installation compared to other sprinkling systems (kits). The pipeline network is built of 15-25 mm diameter pipes easy to transport and assemble in mountainous conditions.
Technical characteristics:
Operation modes: automatic and manual
Irrigated area: 10 ha
Water consumption: up to 100 m3/day
Average sprinkling (rain) intensity: 0.002-0.008 mm/min
EFFICIENCY: 99%
MOC: 98%
Watering automation level: 100%
Results:
- Ensured water supply according to crops requirements with the account of changing weather conditions and moisture deposits in active soil layer;
- Elimination of : 1) water-induced soil erosion, 2) puddling and 3) discharge run-off;
- No need for water recirculation among irrigation sections.
|
| Lessons learnt and recommendations made |
Lessons learnt:
Installation and deployment of tubular water outlet flowmeter allows to improve the uniformity of irrigation stream’s distribution among furrows and conduct irrigation water accounting.
Recommendations:
It is necessary to widely use the small-scale irrigation automation means like the tubular water outlet flowmeters which have simple design, are convenient to operate, are low-cost and mobile and ensure supply of the prescribed amount of irrigation water. |
Lessons learnt:
The advantages of impulse sprinkling irrigation were confirmed by the research efforts on other test sites of KAZNIIVKh in Jambyl Region that allowed increasing biological productivity of Golden Delicious apple variety by 10.1-36.8%, and commercial productivity – by 16.6-49.4% compared to conventional sprinkling irrigation systems.
Recommendations:
It is necessary to continue application of similar practices in foothill areas in Central Asia subject to power supply shortages. |
| Source of practice |
Domestic tools (outcomes of research by domestic R&D organizations) |
Domestic tools (outcomes of research by domestic R&D organizations) |
| Readiness for implementation |
1. Cost of implementation: High
2. Approximate cost of investment per 1 ha:
3. O&M costs: High
4. Expert support: Not needed
|
1. Cost of implementation: High
2. Approximate cost of investment per 1 ha:
3. O&M costs: High
4. Expert support: Not needed
|
| Brief information on the project |
Project title: Watering technology based on tubular water outlet flowmeters.
Project duration: Apr 2010-Oct 2011.
Project goal and objectives: development and deployment of a crop watering technology for dekhan farms of the Republic of Tajikistan allowing to significantly increase the efficiency of water use.
Project beneficiaries: members of “Istikol” WUA (Water User Association).
Project implementer: Institute of Water Issues, Hydropower and Ecology of the Academy of Sciences of the RTj |
|
| Funding source |
“Tajikistan Water Partnership” NGO |
Ministry of Agriculture of the RK |
| Information sources |
Report by the Innovation Technology Department of the IWIHE of the AS of the RTj, Dushanbe, 2012, 45 p. |
|
| Contacts of a person, who filled this form |
SIC ICWC |
SIC ICWC |
| Form submission date |
02.04.2018 |
30.03.2018 |
