Plant and Crop Testing

Plant and Crop Testing

Agricultural and horticultural professionals can take advantage of a complete suite of tests designed to meet the specific requirements of New Zealand based growers. Hill Labs has spent the last 30+ years developing analysis that is specific to the New Zealand situation. Our unique approach means that you can have confidence in the accuracy of your data and make better land management decisions as a result.

Contact us for more info

Soil Testing

Choosing the right test option for your situation and interpreting the test data is important and you are best to contact your local fertiliser representative, rural merchant supplies store or consultant for advice. However, for Pastoral Soils: a Basic Soil Profile and sulphate-S test are recommended. Where reactive phosphate rock (RPR) fertiliser has been used, the resin phosphorus (RP) test should be added. For Arable Crops like Maize:a Basic Soil Profile, sulphate-S and available-N are recommended. Other Soil Tests include: organic sulphur, total sulphur, the organic soil profile for soil quality, aluminium, boron, EDTA trace metals, Mehlich 3 trace metals and more.

Herbage Testing

Herbage analyses help pastoral farmers and their advisers choose the best fertiliser programme. They also highlight mineral imbalances that might be affecting the health of pasture or animals that feed on it.

Herbage tests of pasture complement soil tests and allow important trace nutrients like cobalt, selenium, copper and iodine to be adjusted for improved animal health. Using both herbage and soil testing will provide a better overall picture of the farm nutrient status for an improved fertiliser programme. 

Agricultural Plant and Crop

Hill Labs is a RLP accredited laboratory with a wide range of tests to support the fishing and aquaculture industries. Fish, Shellfish (such as mussels, oysters, clams) and even seaweed are tested for compliance against domestic and/or export requirements. Commonly conducted analyses include chemistry testing for Maximum Residue Levels (MRL’s) particularly heavy metals, and Microbiological testing to ensure food safety.

View

Horticultural Kiwifruit

Hill Labs is New Zealand's leading provider of testing services to the Kiwifruit industry. We work closely with industry bodies such as Zespri and KVH, as well as rural supply merchants and consultants to ensure all of your on-orchard needs are fit-for-purpose and conveniently available.

View

Horticultural Avocado

Over recent years New Zealand's avocado industry has undergone rapid growth. Ensuring that growers maintain high quality high yield systems, remains a key industry driver. As such, Hill Labs offers a diverse array of tests for the analysis of avocados.

View

Medicinal Cannabis

Hill Labs is a RLP accredited laboratory with a wide range of tests to support the fishing and aquaculture industries. Fish, Shellfish (such as mussels, oysters, clams) and even seaweed are tested for compliance against domestic and/or export requirements. Commonly conducted analyses include chemistry testing for Maximum Residue Levels (MRL’s) particularly heavy metals, and Microbiological testing to ensure food safety.

View

Hemp

Hill Labs has an IANZ accredited cannabinoid method and Ministry of Health approval to test hemp flower for compliance purposes (THC).

View

Helpful links

Our team of testing experts has meticulously crafted these documents to offer recommendations tailored to your testing requirements.

Latest Stories

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

A Record-breaking Day for Kiwifruit Samples

Hill Labs is a key service provider to Zespri and the kiwifruit industry, providing time-critical sampling and maturity testing services seven days a week. Zespri has strict maturity criteria that all orchards must pass before harvest to ensure consumers receive the best quality kiwifruit expected from the Zespri brand.
  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.