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

How farms are working to reduce environmental impacts in Selwyn 

14th February 2018

It’s been a busy time for many Selwyn farms over the past few months. After a record breaking dry spell in late 2017, we received some welcome rain in January.  In conditions like these, irrigation is really important both for….. Read more

NZ needs more water storage in a changing climate

8th February 2018

The importance of water storage in helping provide a reliable supply of water for urban communities, and for food and energy production in a changing climate needs to be recognised, says IrrigationNZ. “We are seeing the effects of poor future….. Read more

What can we learn from 2017’s wild weather about managing water?

8th February 2018

  As year’s went 2017 was a fairly dramatic one. In February, one of the biggest fires in New Zealand history ignited on the Port Hills amid tinder dry conditions, causing thousands of residents to be evacuated. In March, the….. Read more

Free irrigation workshop for Bay of Plenty farmers

18th January 2018

Bay of Plenty dairy farmers have the opportunity to join a free workshop showing them how to optimise their irrigation use. The workshop will be run by IrrigationNZ and will cover how to assess how well irrigation systems are performing…… Read more

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

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

Foundations of working with tangata whenua workshop

March 6 - March 7

Given the considerable interest shown, INZ have organised a workshop on how to be effective working and negotiating with tangata whenua. Proudly supported by our training partners The learning objectives of this are to: Have a basic idea of who….. Read more

Irrigation Accreditation

Smart Irrigation