We recognize the investment you make in
fertiliser and crop nutrition. I want to make sure you maximize your return on
that investment. Soil analysis allows us to provide you with a deeper
understanding of your nutritional requirements for the season relative to
your target yield. It is important to use the right product and the right amount
in the right place on the farm. It’s very It’s very important that you plan your sampling
locations. Decipher allows us to use biomass imagery and zoning to plan your
representative sites. Sample sites should be representative of the paddock. Speak
to your Area Manager for more information regarding the selection of site sampling
locations. Using Decipher we have selected sample sites that are
representative of this paddock. Using Decipher Go make your way to the geo-
reference pins to collect your samples. Scan the NUlogic bag using Decipher Go
ensuring all your paddock information is correct then it’s time to physically
take the samples. Topsoil cores need to be taken at a depth of 10 centimetres as
all nutrient analysis through the CSBP Lab is calibrated to 10
centimetres. A sample taken with a shovel will not provide accuracy. We recommend
using one of the three methods: a pogo stick, an air-operated soil sampler or a
drill. At least 15 to 20 sample cores need to be taken from the soil site. This
number of soil cores complies with the nests and soil testing guidelines and
has been proven by CSBP to provide the most accurate and representative
results. Recommended methods of sampling consists of walking in a zigzag pattern
around your vehicle or an arch at the back of your vehicle depending on your
choice of sample tool. The cores should be taken from the inter row and the drill row
at a 9 to 1 ratio. Soil cores should be placed into a container and mixed
thoroughly before pouring them into a sample bag up to the line. Subsoil
samples are highly recommended for all nutrients in particular pH, Potassium and
Nitrogen. This can also identify other chemical subsoil constraints
such as sodicity, salinity, and aluminium toxicity. Subsoil samples are best taken
with a contractor machine such as an air operator drill or a soil corer. Care must
be taken to scrape the top ten centimetres of soil away to ensure no
contamination of the soil core occurs. For the most accurate fertiliser
recommendation both top and subsoil core samples should be taken for complete
nutrient analysis. Seal your sample bag, place it in a NUlogic soil analysis
envelope and send to the CSBP Lab. Based on the sample results and your paddock
information including rotation history, target yields, input costs and commodity
pricing, CSBP’s NUlogic model will allow us to identify the best fertiliser
strategy to suit your crop requirements. The NUlogic model has been developed
using over 50 years of nutritional trial data from CSBP’s extensive field
research program. A team of nutritional advisors will assist with site selection
and sample job planning, arrange for sample collection, review raw sample
results and provide a NUlogic product recommendation. Soil analysis is just one
piece of the puzzle and should be followed up with a NUlogic plan analysis
in-season, to review and adjust your fertiliser strategy based on seasonal
conditions. To start sampling or for more information contact your Area Manager or
visit our website.