Compost and Media Testing

Compost and Media Testing

We have a range of tests to help you understand the status of composts, media and nutrient solutions. Choose from a range of suites designed to measure the nutrient status, pesticide residue levels, microbial counts or the heavy metal content.

Compost testing

Hill Labs offers a suite of different compost tests that allow you to assess organic matter, nutrient composition, mineral composition, as well as for contaminants such as heavy metals and pesticides.

Media testing

Soil-less growing media can be easily analysed using Hill Labs Basic Media Test. This test suite includes pH, Electrical Conductivity as well as mineral and nutrient analysis.

Nutrient solution testing

Ensuring your hydroponic growing system is delivering optimally is easy when you use Hill Labs Basic NFT Test. This test suite includes pH, Electrical Conductivity as well as mineral and nutrient analysis.

Organic certification of compost

Organic certification testing of compost to New Zealand's BioGro standards can be done easily and quickly using our organic certification test suite.

Contact us for more info

Latest Stories

New Raw Milk Testing Service Ready for the 2026 Dairy Season

We are pleased to announce a new raw milk testing service ahead of this year’s dairy season, expanding our support for New Zealand’s dairy sector with independent laboratory services for raw milk collection and analysis. The new service encompasses raw milk composition, quality and chemistry testing, delivered from a purpose-built raw milk testing laboratory established at our Hamilton site.
  30 Jun 2026

Staff Profile: Paul Sweetman - Supporting Safer Food Systems

Senior Verifier, Paul Sweetman, comes with extensive experience in risk management programme (RMP) auditing and food safety compliance across the dairy and honey sectors. He specialises in conducting independent audits, supporting regulatory compliance, and providing practical guidance to help businesses strengthen their systems and ensure product safety and integrity.
  09 Jun 2026

Connecting with Farmers and Growers at Fieldays

Fieldays is now upon us and it's great to be connecting with farmers, growers and industry professionals from across New Zealand. Events like Fieldays are a great opportunity for our team to get out from behind the desk, hear directly from the sector, and continue building strong relationships within the agricultural community.
  21 May 2026

What our customers have to say

"We've always found them to be responsive in getting results back and giving advice on problems we might be facing."

Andrew Hutchinson, Technical Manager, Turners & Growers

"We strongly recommend Hill Labs as a sound testing service provider to the honey industry."

Nick Walker, Technical Manager, Egmont Honey

"Their sample registration system has made things simple and seamless - collect, scan and send!"

Mathew Bannister, Compliance Manager, First Fresh New Zealand

Accreditations

As a New Zealand accredited laboratory by International Accreditation New Zealand (IANZ), Hill Labs' commitment to quality is tantamount to our overall operating philosophy. We pride ourselves on the quality of our work.