POLY4 helps your crops stay strong through drought, disease, and physiological stress. It reinforces plant cell walls, supports healthy root growth, and builds resilience from the inside out —helping you protect yields and avoid costly losses.
Calcium doesn’t just build tougher tissue - it activates your crop’s immune system. From sealing weak spots to signalling pathogen attacks, it’s your first line of biological armour.
When crops get the right mix of calcium, magnesium, and potassium, they grow stronger from the inside out - resisting cracking, collapse, and infection. POLY4 delivers full-spectrum nutrition to keep your crop firm, healthy, and stress-tolerant.
With balanced nutrition, plants use water more efficiently, build stronger roots, and stay productive - even under drought stress. It’s how POLY4 protects yield when the rain doesn’t come.
Have a look at highlights of 10+ years of field trials proving that POLY4 delivers.
Boosting calcium to fight disease in wine grapes
Italy
2024
Controlling blossom end rot with POLY4
Italy
2019
Tomatoes with POLY4: Boosting yield and marketability
Italy
2022
Managing bitter pit economically
Italy
2024
Defending against bacterial leaf spot
United States
2015
Insights from the field: POLY4’s impact in dry conditions
Europe
2015-2022
Controlled research: Measuring POLY4’s effect under drought
2023
Enhances output
POLY4 helps you grow better crops, bigger harvests, and stronger profits year after year.
Unlocks access to nutrients to maximise their use
Unique properties of POLY4 improve nutrient availability in the soil and enhance nutrient use efficiency - reducing waste in the field and saving you money.
Cares for your soil
POLY4 enriches your soil helping to improve its structure and function without negatively impacting its long-term health.
A perfect fit for sustainable farming
POLY4 helps you farm smarter, in a nature-friendly way - so you can keep farming for years to come.
POLY4® is a trademark of Anglo American Woodsmith Limited.
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