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Irrigation System Evaluation

Poor distribution uniformity and low irrigation efficiency have negative impacts on the benefits and profitability of irrigation.  An evaluation utilises selected measurements of system performance (and management) to identify causes of any poor performance and how these deficiencies can be rectified.

Why Evaluate Your System?

To achieve a high level of irrigation performance requires a well-designed, well maintained and well managed irrigation system.

An irrigation evaluation will determine whether the design specifications are being met and you have got what you paid for. An evaluation will also check if your old system is still performing as you would expect.

An evaluation is not just a series of field tests, it will show what can be done to increase irrigation effectiveness and efficiency — irrigating more with the same water, saving you money and growing more for your water dollar.

What is involved?

An irrigation evaluation involves on-site measurement of flow, pressure and other physical aspects at critical points in an irrigation system while it is operating.

Each irrigation system type requires a different set of measurements and calculations. What is needed for a centre pivot does not apply for drip-line!

No matter the system, the key indicator is distribution uniformity — how evenly the system applies water to individual plants.  It sets the base for efficiency.  Only very high uniformity allows irrigation that is both efficient and effective.

Analysis enables the system performance levels to be determined and compared to key performance indicators and design specifications. The cause of any non-performance can be identified, how these can be remedied and what gains might be made from improvements.

Your evaluation will be a snap shot of the system performance on the day of testing. It is important for this to be typical of normal operation so the findings can be most useful.

Irrigation Management Contacts

Phil Neill
Manager, Irrigation Management
M: 027 457 9863
P: +64 3 341 0970
phil@hydroservices.co.nz

Mark Fitzgibbon
Mid/South Canterbury Area Manager
M: 027 457 0413
P: +64 3 341 0970
mark@hydroservices.co.nz
Job Quantock
North Canterbury Area Manager
M: 027 534 3886
P: +64 3 341 0970
job@hydroservices.co.nz

Melanie Smith
North Island Area Manager
21 Ruahapia Road, RD 2
Hastings 4172
M: 027 444 7349
P: +64 6 873 4045
melanie@hydroservices.co.nz
SCHEDULING ORDER FORM

Please note emailed reports require rainfall and irrigation records emailed to This email address is being protected from spambots. You need JavaScript enabled to view it. and broadband is an advantage.

TERMS AND CONDITIONS: Payment must be made by the 20th of the month following the date of the invoice, unless prior arrangement for extended credit has been made. Interest of 18% will be charged monthly on overdue accounts. Debt collection will be taken at the discretion of HydroServices Limited after 60 days. This cost will be added to your account. Any instructions received by HydroServices from the client for the supply of our services, shall constitute acceptance of the temrs and conditions contained above.

What gets measured?

Pressure, flow and other measurements will be made. Actual field measurements are essential to make sure what should be happening, is happening.

Analysis of those measurements enables the system performance levels to be determined and compared to key performance indicators and design specifications. It also allows the cause of any non-performance to be identified, how these can be remedied and what gains might be made from improvements.

A key indicator is distribution uniformity — how evenly the system applies water to individual plants. It sets the base for efficiency. Only very high uniformity allows irrigation that is both efficient and effective.

What protocols are used?

Evaluations are carried out by trained and certified irrigation evaluators. All the measurements and procedures are carried out according to the Code of Practice protocols. Analysis and report preparation uses the IRRIG8(TM) Software.

What about management?

Poor systems can never perform well, but even an excellent system will be inefficient and ineffective if poorly managed.

Seasonal irrigation efficiency combines system performance results with irrigation scheduling decisions based on climate data, crop type and soil water holding properties.

Adding the review of management decisions and actions completes the picture. It identifies true irrigation efficiency, and any further opportunities to extract maximum potential from the system.

SCHEDULING ORDER FORM

Please note emailed reports require rainfall and irrigation records emailed to This email address is being protected from spambots. You need JavaScript enabled to view it. and broadband is an advantage.

TERMS AND CONDITIONS: Payment must be made by the 20th of the month following the date of the invoice, unless prior arrangement for extended credit has been made. Interest of 18% will be charged monthly on overdue accounts. Debt collection will be taken at the discretion of HydroServices Limited after 60 days. This cost will be added to your account. Any instructions received by HydroServices from the client for the supply of our services, shall constitute acceptance of the temrs and conditions contained above.