Sampling FAQs

Is soil and plant testing beneficial?

A soil test is an effective tool in managing the mineral nutrition of growing plants. It is a quick and inexpensive way to check the levels of essential soil nutrients, and can be a key management tool when making sustainable economic and environmental management decisions. Weigh up the cost of sampling against the direct cost of a mild nutrient deficiency - it is only a small price to pay for the assurance of a correct nutritional platform and successful growing season.

How often should I soil or plant tissue test?

As conditions can vary annually, it is best to test frequently in order to build a nutrient profile across paddocks and the farm over time. Generally, we would recommend surface soil testing at least once every two to four years, and soil profile testing every crop or pasture cycle. However you may want to test more often if you have a problem area or if you want to closely monitor the nutrient status. How often you test depends on the value of the crop and how closely you manage it. Regular soil testing will ensure that you have all the necessary information needed to maintain optimum fertility year after year.

Why do my results vary from year to year and within paddocks?

All paddocks will have some degree of variability, but the amount and importance of the variability should be expected to vary greatly between fields. Within paddocks, soil types, topography, land use history, redistribution of nutrients (eg. due to livestock), environmental conditions (eg. drought) and the quantity of nutrients in plant material can all affect sample results. Some soil nutrients, eg. nitrates and sulphates, move within the soil profile depending on soil moisture, rainfall and evaporation. Therefore when growing crops and pastures dependent on these nutrients, we recommend regular sampling to assess the availability of these nutrients.

How long does sampling take?

The sample turnaround times for Incitec Pivot's Nutrient Advantage Laboratory Services are detailed below. It is important to note that turnaround times are measured from the time the sample are registered at the laboratory until the results are available to the customer.
  Soil 5 working days
  Plants 3 working days
  Water 3 - 5 working days
Samples must be received prior to 2.00pm to be registered on that day. Samples received after 2.00pm will be registered the following day, which will be the day used to determine sample turnaround time.

What do I get for my money?

You receive a report which provides easy to follow information regarding soil nutrient status, soil health, remedial actions and where required fertiliser recommendations based on Nutrient Advantage's CRAFT principles.