How does POLY4 work?

Fertilizers are a fundamental requirement of modern agriculture and the global food supply chain.

Every growing season, plants take up nutrients from the soil, depleting those that are naturally available. Unless the nutrients are replaced, soil will become nutrient deficient and a plant’s ability to grow efficiently will be reduced.

There are six macro-nutrients all plants require: nitrogen (N), phosphorus (P), potassium (K), magnesium (Mg), sulphur (S) and calcium (Ca). Each nutrient serves a different vital role in plant function, structure and development, and must be available in a balance appropriate for a particular crop and soil condition in order to achieve maximum yield.

POLY4 can supply four of these six macronutrients in significant quantities:

<span class=brand-highlight>POLY<span>4</span></span> macro-nutrient, potassium

Supports crop yield while improving sustainability (e.g. disease resistance) and resilience to climatic stress (e.g. drought)

<span class=brand-highlight>POLY<span>4</span></span> macro-nutrient, sulphur

Required for protein synthesis and also ensures greater efficiency of nitrogen fertilizer use

<span class=brand-highlight>POLY<span>4</span></span> macro-nutrient, magnesium

Vital to enzyme activity in crops and a key component of chlorophyll, the green pigment that enables photosynthesis

<span class=brand-highlight>POLY<span>4</span></span> macro-nutrient, calcium

Provides structural strength in plant cell walls (deficiency can cause a range of diseases, particularly in vegetables)

The nutrients in POLY4 are available throughout a crop's lifecycle and support the crop from establishment through to harvest, compared to conventional fertilizers which tend to be applied and deliver nutrients ahead of crop demand. This is achieved because POLY4 granules release their nutrients gradually.

Common fertilizer practice tends to apply nutrients at sowing, when plant demand is small - over time, these nutrients can be lost through erosion, runoff or leaching, and so become unavailable towards the end of the plant’s life cycle where nutrient demand is at its highest. However, if a farmer uses POLY4 to supply potassium, sulphur, magnesium, calcium, these nutrients become available over a longer timeline, which more closely meets the nutrient uptake requirements of the plant. This is a key profit driver for farmers, as more nutrients are used by the crop for yield and quality improvements.

To find out more, please visit our POLY4 website.