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•SAP is a new kind of macromolecule water-absorbing materials with high water-keeping ability. It can bring the following functions such as resisting drought and protecting seeds, increasing products and yielding, ameliorating the earth, preventing wind and fixing sand, the conservation of soil and water in agriculture, forestry, water conservancy, sand industry. It is the most promising fourth-generation agricultural chemical products that can be accepted by farmers after fertilizer, pesticide and terra film.And at present,the SAP is used for water-saving agriculture extensively.
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• Save water
•SAP can inhibit evaporation. Soil infiltration of SAP, suppressed water evaporation to a large extent, increased soil moisture, reduce water loss of the soil in a huge, thereby slowed the release of soil moisture speed, reduced soil water to lost moisture and infiltration, To achieve the purpose of saving water. 
• Ability to keep warmth
•SAP have some Keeping warm properties.After Application of SAP, the use of available water absorbed during the day to keep some of the light and heat, adjust the temperature at night, makes the soil temperature difference between day and night to reduce. Experiments show, In the sand soil in a mixture of 0.1% to 0.2% of the SAP, The 10cm of soil temperature monitoring,There is a buffer on the soil temperature up and down. So that the temperature difference between day and night to reduce the 11 to 13.5 degrees.
• Save fertilizers
•SAP is able to absorb water and store water, it can be keep water-soluble fertilizer, the growth of crops needing for the growth of nutrients among it, to a certain extent, reduce the loss of soluble nutrients to save fertilizer, Increase the utilization of water and fertilizer.
• Improve the soil structure
SAP keep into the soil, with the expansion of the water loss and changes in the law of the contract will enable the surrounding soil compaction by a loose, porous increase, so to a certain extent, improve the soil permeability of the situation.
   
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Good water-absorbing ability This ability is 300-1500 times of desalted water, 200 times of tap water, 60-100 times of physiological saline, 35-60 times of 0.1% calcium chloride solution
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High gel coagulation intensity Because the products has introduced the rigid inorganic rigid materials, the water-keeping rate is more than 93% after put ting into the centrifugal machine at the speed of 3000r/m for half an hour. The endurance ability is 250g~500g/cm2.
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Toxicologically and environmental safety test proved that SAP has no poisonous leftover, will not pollute the environment and can be decomposed naturally.
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PH value is about 6.0-8.0. It is adjustable and will not cause soil salinization and alkalization, but prevent soil salinization and alkalization.
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Good salinization-endurance. It has high stability in fertilizer, nurture and the blend of salt. It does not have cementation in the soil. After continuously wet-dry circulation, shrinking and expanding, it can ameliorate the ability of soil to let the air in and out, and loosen the soil.
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The physical stability is nice and has high-speed water-absorbing and expanding ability under the oil pressure.
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When the water content is low in the soil, the SAP can release the water slowly and does not fight for water with the crops.
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It has high capability to resist the light and can hold the performance to absorb and release the water again and again.
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The product is abundant in potassic salt and ferric salt, and is nutrient to the soil.
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 It can absorb and then keep the rain and irrigative water, which can be released slowly when the crops need water. By this way, it not only guarantees the water needed by the growth of the plant, but also prevents the waste of water by vaporizing, leaking and flowing of water. It can keep the soil wet in a long time and can absorb and release water repeatedly, then is used by the crops slowly.-
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 It can ameliorate the soil structure(the granule structure, air permeability,heat content and so on).The repeated shrinking and expanding can make a lot of small holes for soil, enhance the air permeability and water permeability of soil, ameliorate the root environment of the crops, intensify the activity of the microorganism at the root of the plants, and at the same time quicken the decomposition of the organic mineral materials around the root of the soil, promote the growth of the root system and the plants, improve the substrate of the soil and prevent the hardening and salinization of the soil.
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 It can maintain the stability of the molecule structure of all kinds of soil under different climates, and then it can guarantee the ability of the products to absorb, release and keep the water. It also guarantees the repeated usage of the products and prolongs the service period of the products.
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 It can accelerate the growth of the crops, advance the burgeoning rate of seeds, make the young plant come out ahead of time. The SAP can also promote the growth of the root system and make the root system flourish more.
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 It can save the fertilizer and pesticide. If it is used by blending with fertilizer and pesticide, it can keep the fertilizer and release it slowly, at the same time keep the rain and irrigative water. It can prevent the waste of fertilizer and pesticide by vaporizing, leaking and flowing of water, and then improve the usage rate of the fertilizer and pesticide.
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 It is not poisonous, does no harm to the peoples health, and has no side effects. The SAP does not pollute the crops and environment when being used.
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 Even if the SAP is close to the root system and absorbs the water to saturation, it will make the root system of the plant rot and mildew.
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