Irrigation New Zealand

Each type of irrigation system functions differently, so different methods of assessment are needed. Fortunately, many performance indicators are common, so although irrigation systems need to be measured in different ways, the performance of irrigation systems is easily comparable.

An irrigation performance assessment focuses on a set of key checks

  • Is the system applying the expected depth of water?
  • Is it applying the water evenly (uniformly)?
  • Is it applying the water at a rate that the soil can accept?
  • Is the energy use reasonable?
  • What is causing any non-performance?

Performance Assessment Code of Practice 2015

Irrigation Technical Glossary 2015

Explanation of the Code of Practice:

PART A Introduces the process and requirements to carry out operational checks, and annual and full performance assessments. It also outlines how to report your findings.

PART B Provides initial checklists for compliance and water supply.

Performance COP Parts A and B


Parts C – H are system specific processes for measuring irrigation performance.

The Code recognises three different levels of irrigation system performance assessment. In increasing level of complexity, system performance assessment includes –

  1. Operational checks
  2. System calibration (annual performance assessment)
  3. In-field performance assessment (full performance assessment)

Performance Assessment Code of Practice Part C – Micro-Irrigation

Performance Assessment Code of Practice Part D – Solid Set

Performance Assessment Code of Practice Part E – Sprayline

Performance Assessment Code of Practice Part F – Travelling Irrigator

Performance Assessment Code of Practice Part G – Linear

Performance Assessment Code of Practice Part H – Centre Pivot


Part I contains additional assessments for energy efficiency and seasonal irrigation efficiency

Performance Assessment Code of Practice Part I

INZ delivers a certificate in irrigation performance assessment. This is underpinned by the Performance Assessment Code of Practice.

Irrigation Performance Assessment Qualifications and Training

Register of certified irrigation performance assessors


Wednesday 11 April–12 April

10:00 am - 17:00 pm

Join us for a two day Fertigation Master Class

When: 11th and 12th April 2018

Where: Lincoln Event Centre

Cost: $650 +GST

Places are limited so get in early to avoid disappointment.

The outcome of the class is to produce a resource that will provide irrigators with clear information for successful fertigation, including costs and benefits, good management practice knowledge resources and related training opportunities.

It will also enable irrigators and their service industries to inform and achieve any future regulations around fertigation equipment and practice.

The master class will help to unlock the future potential of fertigation in NZ through providing answers to the following questions –

  1. What are the costs and benefits of fertigation?
  2. What are the equipment options for fertigation and to which scenarios are they best applied?
  3. What does ‘good practice’ design, installation and management look like?

The programme involves presentations on each topic followed by discussion and agreement that these are industry accepted standards. There will be a field trip on the afternoon of day 1 as well as a dinner on the Wednesday night. Full programme will be released soon….

The price for the master class is $650 + GST

Notice of withdrawal: 7 days – 50% registration refunded or transferable to another person, 3 days – no refund – transferable to another person

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