Irrigation New Zealand

It is common for irrigators to apply effluent, fertiliser and agrichemicals through their irrigation systems in New Zealand. This is known as chemigation or fertigation. If correctly diluted effuent, fertiliser and agrichemicals can be very effectively, efficiently and safely applied by injecting them into water flowing through a properly engineered irrigation and injection system. IrrigationNZ has produced an industry best practice guideline for the safe management of irrigation systems that have effluent, feriliser and/or agrichemical injection.

New Zealand Guideline for the Safe Management of Irrigation Systems with Effluent, Fertiliser and/or Agrichemical Injection

This guideline is intended for designers and installers of irrigation systems with effluent, fertiliser and agrichemical injection. This may include engineers, equipment suppliers, and specialist irrigation designers. The design, installation and testing processes described in this guideline are intended to be applied to agricultural irrigation systems. The guidelines do not amend or replace other industry performance indicators, guidelines, codes of practice or standards. Designers and installers should interpret the guideline according to the requirements of individual properties and owners. All decisions made must also comply with statutes, regulations, and other legal requirements and industry standard

The guideline covers safe management practices and more specifically the recommended safety devices and systems to be used when injecting effluent, fertilisers, herbicides, pesticides and other agrichemicals into irrigation systems. It has been adapted from ASABE 409.1 MAR 1989 R2009. The guideline is not intended to replace backflow protection device recommendations for irrigation systems connected to a sanitary system in New Zealand. AS/NZS 2845 (2010) is the applicable standard for these scenarios. For irrigation systems where the water source is also used for rural drinking water the New Zealand Drinking Water standards may apply and impose conditions relating to hazards management.

 

For irrigators in the Canterbury region:

Environment Canterbury have put together a guide to provide irrigators with information on chemigation valves for backflow prevention:  Canterbury Backflow prevention Guidelines

NEWS

Irrigation Workshops – Marlborough and Tasman

7th December 2017

With challenging dry conditions continuing across the Upper South Island, Marlborough and Tasman irrigators will have the opportunity to find out how to be more efficient in their water use at upcoming workshops hosted by IrrigationNZ. “Understanding how to monitor….. Read more

Advice for irrigators over a long, dry summer

7th December 2017

With much of New Zealand experiencing exceptionally dry conditions, IrrigationNZ has some advice for irrigators on how to make the most efficient use of water over summer. According to NIWA, several areas in the South and North Island came close….. Read more

Irrigation a boost for communities

4th December 2017

IrrigationNZ supports Minister of Regional Development Shane Jones’s announcement that regional economic development funding could support some water irrigation projects. “Water infrastructure plays a vital role in creating resilient rural communities,” says IrrigationNZ Chief Executive Andrew Curtis.  “Several New Zealand….. Read more

IrrigationNZ back to help improve irrigation management

23rd November 2017

IrrigationNZ will be back on farms this summer testing irrigation systems and helping farmers improve the efficiency of their irrigation. Last summer, IrrigationNZ in partnership with Environment Canterbury, developed a new testing programme which saw 131 Ashburton farms have their….. Read more

Petition misrepresents irrigation facts

14th November 2017

IrrigationNZ says that the petition presented by Greenpeace at Parliament today misrepresents how irrigation has been funded and used and ignores the wide range of benefits to New Zealand from irrigation, as well as the efforts being made to address….. Read more

EVENTS

Irrigation Efficiency Summer Programme

November 7, 2017 - February 28, 2018

                                 Is your irrigation equipment operating as it should? What improvements could be made? These are questions that can be technically challenging and costly. To help irrigating farmers navigate to Good Management….. Read more

New Zealand Certificate in Irrigation System Design

January 18, 2018 - January 19, 2018

Acquire the specialist skills required to design technically efficient and environmentally sustainable irrigation systems. This certificate is suitable for people with prior knowledge and experience in irrigation. You will be required to design two different irrigation systems so will need….. Read more

Irrigation Accreditation

Smart Irrigation