Crops remove more potassium (K) than phosphorus (P), so it is essential to recommend adequate levels of K especially if it is the more limiting nutrient.

The growing need for K (relative to P), has led to CSBP developing K-Till Max, a new NPK compound with higher levels of potassium incorporated into every granule.

The analysis of K-Till Max is 9.6 N, 9.4 P, 15.0 K, 6.5 S, 0.12 Cu, and 0.24 Zn. It is a fully compounded fertiliser manufactured in our granulation plant at Kwinana.

The ratio of P to K in K-Till Max matches the amount of these nutrients that is removed in the grain at harvest. 

A tonne of wheat removes approximately 3 kg of P and 5 kg of K, so a 3 t/ha crop removes about 9 kg of P and 15 kg of K. This is the amount of nutrients supplied by 100 kg/ha of K-Till Max. The sulphur supplied by K-Till Max also matches the removal rate in cereals (removal rates are higher in canola).

CSBP trials around the state have demonstrated the value of using K-Till Max. Feedback from Growers using trial product has also been positive.

K-Till Max is the ideal seeding fertiliser where maintenance amounts of P, K and sulphur are required.

CSBP’s K-Till range is Western Australia’s leading fertiliser compound at seeding. See the analysis and find out more about the K-Till range

James Easton
By James Easton
- Senior Agronomist
James joined CSBP in 1988 and has over 30 years’ experience in agriculture.

James has been involved in Field Research through various roles as an Agricultural Officer, Area Manager, Regional Agronomist and Field Research Manager and is now Senior Agronomist. As Senior Agronomist he works with the CSBP Research and Agronomy teams to further our understanding of crop and pasture fertiliser requirements under constantly evolving farming systems and practices.

James is passionate about plant nutrition and sharing this knowledge with work colleagues and farmers as well as with the broader industry. 

Agronomic insights

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