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 has over 30 years’ experience working on soil and plant nutrition (crops and pastures).

He graduated from the University of Western Australia with a degree in Agricultural Science (Honours). He has in depth knowledge of historic fertiliser research trials and has worked closely with many growers, consultants, research institutions and farming groups over the years.

James gets a lot of satisfaction from sharing his knowledge with growers and those who support them. And he enjoys the fact that we are always learning.

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