Trial results
Explore some of the findings of over ten years of POLY4 field trials from around the globe.
Explore some of the findings of over ten years of POLY4 field trials from around the globe.
Updating trial results
Controlled research: Measuring POLY4’s effect under drought
2023
Winter wheat with POLY4: Replacing AS for yield increase
UK
2018-2019
Oilseed rape: Increasing yield and oil while staying flexible
Germany
2020
Wine grape with POLY4: An economic alternative for balanced nutrition
Italy
2023-2024
Avocado with POLY4: Saving money by reducing fertigation
Spain
2025
Simple programmes for winter crops with great results
France
2016-2024
Unlocking potassium mobility with POLY4
2015
Sugar beet with POLY4: Balanced nutrition for strong performance
Poland
2022
Better sulphur availability, better crop performance
UK
2020
Tomatoes with POLY4: Boosting yield and marketability
Italy
2022
Better nutrient use: Field results from around the world
Worldwide
2014-2023
Optimising nitrogen use in cereals
Netherlands
2023
POLY4® is a trademark of Anglo American Woodsmith Limited.
© Copyright 2026, All Rights Reserved
Website by Askew Brook
Please note, some translations are AI generated and may not be 100% accurate.