Сравнение практик

Use of water resources

Страна: Казахстан

Область: Жамбылская

Страна: Узбекистан

Область: Наманганская

Район: Папский

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

Foothill droughty area; extremely water pervious soils with pebble bed; the site is located below the Zhijdalisoj Water Reservoir

Дата начала: 01.01.2006

Дата окончания: 31.12.2007

Дата начала: 01.01.2013

Дата окончания: 31.12.2014

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

Irrational use of irrigation water and fertilizers; deficit of electric power; low soil bonitet; poor crops productivity; poor quality of agricultural products; soil erosion

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

Free-flow drip irrigation system (DIS)

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:

Free-flow DIS was installed at the Zhijdalisoj Water Reservoir and was connected to the already operating gravity irrigation piping network. Due to the elevation difference between the pipe inlet and outlet (at the point of entry to the irrigated site) the system generates natural water pressure allowing free-flow DISs installed in gardens to operate without any pumping equipment, i.e. electricity.

Results:

Technical:

thanks to free-flow DIS, water and fertilizers are distributed evenly, strictly according to corresponding norms, in due time and economically (water saving - up to 50%).

Financial and economic:

increased (by 30-40%) crop yields and improved yield quality.

350,000 sum/ha ($150/ha) saved due to electricity saving and no need to repair pumping equipment.

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:

Application of natural (gravity-based) water pressure allows making DISs more affordable for farms located on slope acreage of mountain foothills.

Recommendations:

It is necessary to carry out research to identify locations where free-flow DISs could work thanks to natural water pressure.

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

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

1. Затраты на внедрение: Высокие

2. Примерная стоимость капиталовложений на 1 га:

3. Затраты на поддержание и эксплуатацию: Высокие

4. Экспертная поддержка: Не требуется

1. Затраты на внедрение: Умеренные

2. Примерная стоимость капиталовложений на 1 га: $2-2.5,000

3. Затраты на поддержание и эксплуатацию: Умеренные

4. Экспертная поддержка: Требуется на стадии внедрения

Project title: Innovative science and technological work “Introduction of DISs using natural water pressure in areas adjacent to foothill water reservoirs”.

Project duration: 2013-2014.

Project goal and objectives: create DISs operating without pumping equipment.

Project beneficiaries: employees of Zhijdalisoj Water Reservoir of the Naryn-Syr Darya BISA (Basin Irrigation System Administration).

Project implementer: State Committee on Science and Technology  of the Republic of Uzbekistan (SCST of the RUz).

SIC ICWC

SIC ICWC