Taurus Ag Poly Phosphate (TAPP) is a unique combination of essential plant nutrients, strategically designed to ensure season-long plant nourishment. It is a special blend of Crystal Green Synchro 50 and Polysulphate Premium® that ensures optimal delivery of Nitrogen, Phosphorus, Potassium, Sulfur, Calcium, Magnesium, Chloride, Boron and Zinc - right where the plant needs them most.

Guaranteed Minimum Analysis*

 *applied at 100lbs/acre


Tapp logo with nutrients around it

Application Rate

TAPP is applied at 100-200lbs an acre on average, depending on the crop.

Watch & Learn

Tapp Youtube Video

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The taurus logo shining a spotlight on ICL and Ostara company Logos

Crystal Green Synchro 50 is Manufactured by Ostara in St. Louis Mo USA

Polysulphate®  Premium is mined exclusively by ICL at Boulby Mine in North Yorkshire in the UK. It is found over 1,200m below the Earth's surface, under the North Sea along England's North East coast.

About Crystal Green Synchro 50

✔️Avoid Nutrient Runoff & Leaching

✔️ Maximize Yield

✔️ Unparalleled Seed Safety

✔️ Prevent Soil Tie-Up

Crystal Green Synchro 50 is the first and only phosphate fertilizer to combine the rapid availability of ammonium phosphate with the crop-demand release of Crystal Green. Nutrients are available from the start of the season and are continuously released in response to organic acids, such as those naturally released by roots, and soil microbes. Crystal Green Synchro 50’s unique dual mode of action delivers plant-available phosphorus immediately for early plant development and continues to meet demand when the plant needs it most, ensuring adequate nutrient supply. Crystal Green Synchro 50 ’s unique composition provides growers with a fertilizer that delivers the early-season nutrient availability of conventional phosphate fertilizers and the on-demand access to nutrients from Crystal Green that last all season. This combination eliminates the need for blending Crystal Green with conventional phosphate fertilizers while continuing to provide superior agronomic and environmental benefits.

About Polysulphate Premium

✔️Increases Yield

✔️Saves on Seed Mortality

✔️Improves Grain Quality

✔️ Logistically Convenient

Polysulphate® Premium is derived from polyhalite, a naturally-occurring mineral, which contains elements essential to high-performance plant growth and function. This highly efficient multi-nutrient source contains sulfur, magnesium, calcium, and potassium.  Protected from abrasion, humidity, and damage, the spherical shape gives a steady flow rate and a consistent spread during application. It easily blends with other granulated materials and has an attractive appearance in the blends. Mined exclusively by ICL, this natural mineral (polyhalite) provides a season-long supply of gradually released nutrients to meet crop demand. The industrial granulation processes powdered polyhalite into smooth, uniform, and robust spheres, ensuring top-quality consistency for a balanced release. Fully soluble, with all nutrients available for uptake, this premium fertility source provides essential nutrients that are low in salt and ideal for all crop and soil types. Proven to improve crop yield and quality, Polysulphate Premium is a flexible crop nutrition solution well suited for blending.

The Power of TAPP

Tapp logo with crystal green synchro logo and polysulphate

TAPP Into Seed Safety

canola root touching a polysulphate granule

Pea root Tip interaction with poysulphate


Crystal Green Synchro, apart of TAPP, is placed next to a canola seed and the canolas roots are tapping into the fertilizer







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