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® 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.

TAPP Mg Logo


 *applied at 100lbs/acre


Application Rate

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


Tapp Youtube Video

Click Here To Watch


Crystal Green 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.


✔️Avoid Nutrient Runoff & Leaching

✔️ Maximize Yield

✔️ Prevent Soil Tie-Up

Crystal Green® is the first continuous release granular fertilizer to provide Root-Activated™ phosphorus to feed plants in one season-long application. Unlike conventional phosphate fertilizers, which release nutrients upon watering or irrigation, Crystal Green® releases nutrients in direct response to root demand- when the plant releases organic acids, Crystal Green® releases nutrients. This results in a steady source of phosphorus (along with nitrogen and magnesium) throughout the growing season.


✔️Increases Yield

✔️Saves on Seed Mortality

✔️Improves Grain Quality

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.


[caption id="attachment_4140" align="alignnone" width="1024"]CANOLA REASEARCH from Patterson Grain in 2022 testing polysulphate against other fertilizers Polysulphate Premium[/caption]

[caption id="attachment_2907" align="alignnone" width="685"] Crystal Green[/caption]

Be part of the network

Become a Taurus Insider.

Become a Taurus Insider

* indicates required