Brief introduction
This article is about water retention gel for plants, water retention gardening gel, water retention crystals for plants.
Water Retention Gel/Crystal for Plants (What is it?)
It is a non-toxic environmental protection material with a granule appearance;
It can absorb lots of water;
After absorption, it becomes a water gel form.;
Water gel would release water to plants when it’s drought;
After releasing, water gel would become granule form and could absorb water again for plants.
Applications (where to use?)
For Seed
To improve seed germination & emergence, give plants an early, healthy start.
For Crops
To improve the drought resistance and increase the yield.
For Trees
Fruiter: increase the yield and reduce the fruit cracking rate;
Young or transplanted trees: increase the survival rate.
For Landscape & Golf Grass
To control the cost by reducing irrigation frequency.
How Does It work?
Water Side
It can absorb and store water for plants — just like a mini-reservoir.
Soil Side
1. improve the water retention of soil;
2. keep the soil warm (as water’s high heat capacity);
3. loosen the soil (water retention gel’s going to swell while absorbing water).
Fertilizer Side
1. It contains potassium;
2. It can release fertilizer efficiency slowly.
Water Holding Capacity Test?
Test Objective
Performance Study in varying soil classifications.
Sample Volumes Used
Soil:500ml; Water:750ml; PackRain: 5 grams.
Test Samples:
| Sample | Type | % Sand | % Silt | % Clay | Control weight （g） | w/PackRain （g） |
| 1 | Sand | 100 | 0 | 0 | 762 | 769 |
| 2 | Silt Loam | 37 | 40 | 24 | 615 | 626 |
| 3 | Clay Loam | 30 | 48 | 22 | 407 | 400 |
Test Result:
| Type | Test | Water passing （ml） | Water retaining (ml) | % retained | % increase |
| Sand | control | 425 | 325 | 43. 3 | – |
| w/PackRain | 150 | 600 | 50 | 85 | |
| Silt Loam | control | 275 | 475 | 63. 3 | – |
| w/PackRain | 100 | 650 | 86 | 37 | |
| Clay Loam | control | 352 | 398 | 53. 1 | – |
| w/PackRain | 200 | 550 | 73. 3 | 38 |