Comparison of practices

Use of water resources

• Use of water resources
• Use of land resources

Country: Tajikistan

Province: Districts of Republican Subordination

District: Shahrinaw

Other settlement: Mirob” Water User Association (WUA)

Country: Kazakhstan

Province: Almaty region

District: Karasay District

Mirob WUA is located in the Kafirnigan and Varzob River Basins (river catchment areas); deep (below 3 m) ground water occurrence; middle loamy soils

Foothill zone in southeastern Kazakhstan, dark-chestnut and middle loamy soils

Start date: 01.01.2012

End date: 31.12.2013

Start date: 01.01.2014

End date: 31.12.2016

Need to enhance water use planning and water consumption calculation techniques for agricultural crops with the account of climatic conditions and crop development phases based on decade water use planning hydro-modules proceeding from precipitation availability.

Irrigation-associated soil erosion, low efficiency of applied watering techniques, poor phytosanitary condition of land used for vegetable growing

CROPWAT 8.0 Software

Technique and technology of mist sprinkling irrigation

Actions:

• Analysis of existing methods of water resources use planning in dekhan farms of the Gissar Valley;
• Designing a water use planning technique with the account of irrigation patterns in dekhan farms.

Results:

Financial and economic:

effective use of irrigation water; reduced water consumption per harvest unit.

Ecological:

improved ecological and reclamation condition of irrigated land.

Technical:

executed decade hydro-modules based on precipitation availability allowing dekhan farms to plan their water consumption and draw up crop irrigation schedules depending on expected weather conditions in the Gissar Valley as well as to coordinate other technological and weather-dependent processes associated with crops cultivation.

Social:

prevention of conflicts, controversies and misunderstanding among water users related to irrigation water distribution.

Actions:

A sprinkler (artificial rain irrigation) system installed consisting of 50 mm diameter polyethylene pipes assembled from 10-12 meter segments (5022 SD sprinkler; 3.5 bar pressure; 3.5 mm nozzles; water consumption of 0.87 m3/hour; water distribution area per 1 sprinkler – 12 m).

Results:

Financial and economic:
Compared to ridge-and-furrow watering method, sprinkler irrigation led to a yield increase for the following crops:
• carrots – 15.64%,
• cabbage – 12.78%,
• sweet pepper – 14.19%.

Technical:
• up to 20% reduced irrigation water consumption,
• prevention of irrigation-induced soil erosion,
• improved phytosanitary condition of vegetable fields.

Lessons learnt:

CROPWAT 8.0 Software allows enhancing the technology of water use planning via specification of irrigation modes depending on expected precipitation availability.

Recommendations:

It is necessary to widely apply CROPWAT 8.0 Software.

Lessons learnt:
The practice demonstrated the possibility of effec-tive water use, reducing labor costs, and increasing yields of several horticultural crops simultaneously.

Recommendations:
Widespread introduction of sprinkler-based mist irrigation systems along with drip irrigation and other advanced water-efficient technologies is necessary. In order to ensure that, water users should have strong financial incentives to facilitate water saving.

Foreign tools (transfer of foreign experience)

• Domestic tools (outcomes of research by domestic R&D organizations),
• Foreign tools (transfer of foreign experience)

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

Project title: Improving water use planning technology based on CROPWAT 8.0 Software.

Project duration: 2012-2013.

Project goal and objectives: design a science-based water use planning technique using CROPWAT 8.0 Software to calculate water consumption for different crops with the account of climatic conditions and crops development phases based on decade water use planning hydro-modules proceeding from precipitation availability.

Project beneficiaries: water users of Mirob WUA.

Project implementer: Sh. Shotemur TAU.

Report by the Operation of Hydro and Reclamation Systems Chair of Sh. Shotemur TAU, Dushanbe, 2013, 46 p.

The PhD thesis “Efficiency of mist (sprinkler) irriga-tion technology for vegetable crops in southeastern Kazakhstan” describing a vegetable (cabbage, carrots, sweet pepper) cultivation technology based on fine sprinkling irrigation developed for the first time for soil and climatic conditions of foothill zone in southeastern Kazakhstan, including an optimal mode of vegetables irrigation via fine overhead sprinkler-based irrigation was developed, as well as analyzing the effects of sprinkler irrigation on biomass formation and crops capacity.

SC ICWC

SIC ICWC