Comparison of practices

Use of water resources

• Use of water resources
• Use of land resources

Country: Kazakhstan

Province: Jambyl Region

Country: Uzbekistan

Province: Tashkent Region

District: Parkent District

Other settlement: Baikazan Farm

The site is located in the foothills with significant difference in elevation

Steep foothill terrain

Start date: 01.01.2006

End date: 31.12.2007

Start date: 01.01.2006

End date: 31.12.2006

Water erosion, discharge, uneven distribution of irrigation water, poor yields

Issues: loss of water in temporary water distributers, low plot use ratio, difficulties with regulating water supply to irrigation furrows, low irrigator labor productivity

Technique and technology for irrigation based on Simultaneous Impulse Sprinkling Kit (KSID-10S)

Portable polyethylene trays (PPL-50) of semi-circular section

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.

Actions:

1. Water supply using PPL-50 is possible from: a) reinforced concrete trays, b) covered network, c) temporary earthen water distributers;
2. Prior to watering, the trays are manually distributed along the route and installed with required inclination perpendicular to the furrows in the beginning of the irrigated site. Sections are inserted into each other;
3. After adjustment, the kit is capable of ensuring the desired watering regime;
4. In case of long furrows (150+ m) layer watering is used with the application of flexible polyethylene film hoses (D=300 mm);
5. Depending on specific site conditions, inter-row spacing and crop type, the size of irrigation streams is regulated by way of adjusting the water supply control gate.

Results:

• 20-30% reduction of field unproductive losses;
• Increased productivity (2-4 dt/ha for wheat, 3-4 dt/ha for cotton);
• At least twofold increase of irrigator labor productivity;
• Increased land use ratio (1.5-2.5%).

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.

Lessons learnt:

PPL-50 can be used for watering cotton with 0.9 and 0.6 m row-spacing as well as vegetable and cucurbit crops with 0.3 m row-spacing.

Recommendations:

It is recommended to apply:

• PPL-50 (D=300 mm) in steep foothill conditions;
• PPL-50 (D=500 mm) in flat terrain;
• Prior to using the system in flat terrain conditions, it is desirable to do land planning.

Domestic tools (outcomes of research by domestic R&D organizations)

Domestic tools (outcomes of research by domestic R&D organizations)

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: Moderate

2. Approximate cost of investment per 1 ha: $7.6

3. O&M costs: Moderate

4. Expert support: Needed at implementation stage

Project title: Adaptation of contour furrows and layer watering via portable trays: research on establishing permanent furrows on the premises of Baikazan Farm of Parkent District.

Project duration: 2005-2006.

Project goal and objectives: improve local living standards and food security among rural residents as well as preserve soil fertility in farms located on sloped terrain by way of watering via contour furrows based on the greatest inclination and layer arrangement of assembly polyethylene trays.  The short-term project objective was to demonstrate the technology of watering via contour furrows based on the greatest inclination of sloped terrain and layer arrangement of assembly polyethylene trays.

Project beneficiaries: farms and dekhan farms.

Project implementer: ICARDA

SIC ICWC

SIC ICWC