Dry
In dry conditions, SuperSponge remains compact within the soil.
SuperSponge Soil Water-Retention Material
About SuperSponge
SuperSponge is a water-absorbing polymer made from 100% naturally derived materials. Mixed into soil, it absorbs rain and irrigation water and releases moisture as the soil dries. By retaining water around crop roots, it is intended to support growth under water stress and heat while reducing irrigation volume and labor. We are developing it to biodegrade through soil microorganisms without leaving microplastics behind.
- 100% naturally derived water-absorbing polymer
- Mixed into soil to retain moisture around crop roots
- Designed to support crops under water stress and reduce irrigation demands
- Biodegrade through soil microorganisms
How SuperSponge works
Absorb
It absorbs rain or irrigation water, expands and retains moisture near crop roots.
Release
As the surrounding soil dries, it gradually releases the moisture it holds.
Benefits of using SuperSponge
01
Retains moisture near roots to support growth during dry periods
Mixed into soil, SuperSponge absorbs rain and irrigation water and holds it close to crop roots. It releases moisture as the soil dries, supporting crop growth.
02
Repeated absorption and release support soil aggregate formation
Expansion during absorption and contraction during release create pore space and promote aggregate formation associated with soil aeration and water retention.
03
Biodegradability supports microbial diversity and soil health
Naturally derived material biodegrades through soil microorganisms over approximately six to twelve months, supporting a soil environment where a diverse microbial community can remain active.
04
Reduces irrigation volume and frequency, saving labor and cost
By keeping moisture in the soil for longer, SuperSponge can reduce irrigation volume by up to 40%, helping lower routine labor and irrigation costs.
Comparison with common soil water-retention materials
| SuperSponge | Brand A | Brand B | |
|---|---|---|---|
| Raw material | 100% natural | 100% natural | Petroleum-based |
| Environmental impact | Biodegrade (6–12 months) | Biodegrades in 6–12 months | Microplastic residue remains |
| Soil water retention | ○ | △ ~ ○ | ◎ |
| Price per 10a | $55 | $75 ~ 150 | $75 ~ 150 |
Prices, degradation periods and water-retention performance vary by product and conditions of use. Figures in this table are indicative.