Soil and plant analyses help Environmental Fertilisers choose the best products for building the fertility of your land.  Tests highlight mineral imbalances that might be affecting the health of the pasture or animals that feed on it, or crop and orchard requirements.  They allow cost effective fertiliser recommendations that suit your soil and crop be developed.

To organise any or all of the following tests, please download the Soil and Plant Request Form from the side menu.

Send your soil samples to: Bio Services, 1 Railway St, PO Box 204, Paeroa, 3640.

Reams Soil Tests

We are able to carry out Reams soil tests in our laboratory.  These take 2-3 days to carry out and shows the plant-available  nutrient status in the soil at any time in the plants growth cycle.

We require about 1 1/2 cups of soil or 10-15 soil cores, sampled to 150mm depth, taken from random places in the garden or paddock.  Avoid sampling recently grazed paddocks.  If sampling grazed pasture, avoid dung and urine patches, camping areas, water troughs and gateways. 

The soil is tested for nitrate-N (NO3), ammonium-N (NH4), calcium (Ca), magnesium (Mg), phosphorus (P), phosphate (P2O5), potassium (K), sodium (Na), pH, ORP (oxidation reduction potential – this is an indicator of microbial activity), ERGS (energy released per gram of soil ), paramagnetism (root growth stimulation), humus rating, and key nutrient ratios.

The tests cost $69 including GST per sample.

Mehlich Nutrient Analysis Soil Tests

Soil samples are sent to Southern Cross University in Lismore, Australia.  They take around 2 weeks to be analysed and show the CEC and mineral reserves and trace minerals (separate test for Co, Mo, Se) in the soil. 

We require about 3 cups of soil or 15-20 soil cores, sampled to 150mm depth, taken from random places in the garden or paddock.  Avoid sampling recently grazed paddocks.  If sampling grazed pasture, avoid dung and urine patches, camping areas, water troughs and gateways. 

CEC soil test

The soil is tested for the Cation Exchange Capacity (CEC) (Mehlich 3 method), nitrate-N (NO3), ammonium-N (NH4), calcium (Ca), magnesium (Mg), potassium (K), sodium (Na), hydrogen (H), aluminium (Al), phosphorus (P), phosphate (P2O5), sulphate-S (SO4), pH, conductivity, total carbon (C), total nitrogen (N), zinc (Zn), manganese (Mn), iron (Fe), copper (Cu), paramagnetism. 

Tests cost $175 +GST per sample.

Co, Mo, Se soil test

Include the testing of cobalt (Co), molybdenum (Mo) and selenium (Se) to the above tests for $50 +GST.

Hills Laboratories Tests

Soil Tests

Soil samples are sent to Hills Laboratories in Hamilton.  They take around 10 days to be analysed and show the CEC and mineral reserves in the soil. 

We require about 3 cups of soil or 15-20 soil cores, sampled to 150mm depth, taken from random places in the garden or paddock.  Avoid sampling recently grazed paddocks.  If sampling grazed pasture, avoid dung and urine patches, camping areas, water troughs and gateways. 

Cation Exchange Capacity (CEC) basic soil test (K, Ca, Mg, Na, pH, Olsen P, CEC, Base Saturation) plus S (includes SO4, extractable Organic S and Anion Storage Capacity) and an Organic Soil Profile (for checking soil carbon levels) costs $121 +GST per sample.

The above soil tests, plus Resin P (good for measuring available P in soils with low pH or if you have been using RPR) and total S costs $157 +GST per sample.

Herbage Tests

Herbage tests complement Reams soil tests and allow levels of trace minerals to be analysed.  Herbage samplse are sent to Hills Laboratories in Hamilton and take around 10 days to be analysed. 

Collect around 100 grams of pasture or crop (avoid sampling from plants adjacent to shelter, dung or urine patches, or other unusual areas).  Identify sample bags with a permanent marker pen.  Use plastic sample bags with breather holes or paper bags, to minimise sample deterioration in transit).  For diagnosis of nutritional disorders, sample plants showing signs of abnormality.

Plants are analysed for nitrogen (N), phosphorus (P), potassium (K), sulphur (S), calcium (Ca), magnesium (Mg), sodium (Na), iron (Fe), manganese (Mn), zinc (Zn), copper (Cu), boron (B), molybdenum (Mo), cobolt (Co), selenium (Se), iodine (I), chlorine (Cl), nitrate-N (NO3), crude protein, digestibility, and metabolisable energy.

Tests cost $200 +GST per sample.

Soil Foodweb Institute New Zealand

To access the Microbial Activity (bacteria, fungi, protozoa and mycorrhizal colonisation) of the soil, 2 cups of FRESH soil and roots are sent to the Soil Foodweb New Zealand to be analysed. 

Samples of several representative 2-2.5cm diameter cores from the upper 7cm of the soil (enough for 2 cups).

Tests cost $280 +GST per sample and take around 8 working days.