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Winter wheat with POLY4: Replacing AS for yield increase

Results of 9 trials in UK, France and Germany (2018-2019)

We tested fertiliser programmes using POLY4 and muriate of potash (MOP) against standard ones with MOP and ammonium sulphate (AS). We also tried applying POLY4 at different times. The result? POLY4-based programmes gave higher wheat yields—no matter when they were applied. That means more flexibility, better performance, and less worry about timing.

2.2% increase

Applied Oct to Nov

3.8% increase

Applied Nov to Jan

1.9% increase

Applied Jan to Mar

3.1% increase

Applied Mar to Apr

Median results from 9 field trials in UK, France and Germany (2018-2019).

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