Super Absorbent Polymer SAP Hydrogel Agricultural

Super absorbent polymer (SAP) is a new type of functional polymer material. It has a high water absorption function and can absorb water hundreds to thousands of times heavier than itself, with excellent water retention performance. Once it absorbs water and swells into a hydrogel, it is difficult to separate the water even under pressure. Super absorbent polymer is widely used in the agricultural field.

Super absorbent polymer can quickly absorb 400-500 times of pure water. It can absorb and store rainwater or irrigation water, and release it for plants to use during droughts.

1. Reversibility of water absorption and release:

It absorbs water when there is more water in the surrounding environment and releases water when there is less water. It absorbs and releases water repeatedly in this way. It only needs a little irrigation or rainfall. It is not easily destroyed by microorganisms in the environment. It can maintain a three-dimensional structure for a long time, thereby supplying water to plants for a long time.

2. Fertilizer absorption and retention:

According to traditional fertilization methods, many fertilizer elements are wasted before they can be absorbed by plants due to decomposition by sunlight and erosion by rainwater. SAP can absorb urea about 100 times its own weight, fix it in the soil and release it slowly, which can greatly reduce the loss of nutrients, effectively save 20-40% of fertilizer, and extend the fertilizer effect period.

3. Improve soil:

Because its particles expand after absorbing water and shrink after releasing water, it can make the soil form a granular porous structure, soft and breathable, which can not only meet the needs of plants, but also increase the permeability of clay and the water holding capacity of sandy soil.

4. Safety:

PH value is neutral, there are no harmful substances in the released water, it is non-toxic and harmless to the environment and plants, it will not be lost with rainwater, and it will naturally degrade after many years, reducing to ammonia nitrogen, water and a small amount of potassium ions, effectively improving the soil.

5. Applicability:

According to the water retention principle of super absorbent polymer, it can be applied to any crop, whether it is agricultural and forestry crops or green plants.