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What Is a Water-Retaining Polymer in Soil?

Root zone and plant
Fundamentals

What Is a Water-Retaining Polymer in Soil?

Soil water-retaining polymers are materials that absorb irrigation or rainfall water and help create a temporary reserve in the root zone.

Up to 600 timesCondition-dependent water storage capacity
Approximately 5 yearsRepeated operating cycle under suitable conditions
pH 6–8Near-neutral product characteristic
What Is a Water-Retaining Polymer in Soil?

Operating principle

When ARAJEL comes into contact with water, it swells and turns into a gel. As soil moisture decreases, it releases part of the stored water back to the root zone. With subsequent irrigation or rainfall it absorbs water again and repeats the cycle.

Why is it applied to the root zone?

The purpose of the polymer is not to retain water on the surface, but to support moisture management where the plant’s active roots are located. Therefore, it should be applied completely below the soil surface, taking root-development depth into account.

What affects performance?

Water quality, salinity, soil pH, temperature, pressure, application dose and soil structure affect absorption capacity. Technical values can differ between laboratory and field conditions.

A complementary solution

ARAJEL does not replace good agricultural practices such as a proper irrigation program, organic-matter management, mulching, suitable drainage and plant-specific fertilization; it complements them.