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Starter Fertilizer Polyphos

Analysis

• Nitrogen 14%
• Phosphorous 20%

The ideal starter fertiliser when high levels of plant available phosphorus are required for growth and root production

Benefits of Starter Fertilizer Polyphos

• Slow release source of phosphate provides controlled delivery of nutrient to maintain even growth
• Unique polymer characteristics ensure phosphorus remains readily available in all conditions
• Ability to sequest and free insoluble trace elements in the soil making them available to the plant
• Completely soluble and plant available delivering the required amount of nutrient with low application rates

What Are Polyphosphates?

Well-known phosphorus sources such as MAP and DAP contain phosphorus which is in the ‘orthophosphate’ form ie these are single molecules which easily become locked and unavailable to plants when applied to high pH, calcareous and some other soil types.

The phosphorus in ammonium polyphosphate is not subject to this lock up. The reason for this is its long chain structure.

During production of ammonium polyphosphate the extreme temperature of the reaction forces water out of the structure, thus forming polymer chains between the phosphate molecules.These polymer chains vary in size, giving the effect of a slow release phosphorus source.

The Role of Phosphorus

Plants need phosphorus at all growth stages, particularly in early growth stages as it is necessary for cell division and growth within the plant. Although mobile within the plant, it is relatively immobile in soil.

The Role of Nitrogen

Nitrogen forms protein and increases the yield of all crops. It is the essential building block of plant structure and is vital to plant growth, however it does need to be in balance with the other plant elements. Nitrogen is often leached from the soil therefore regular small applications will ensure efficient uptake without excessive losses.

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