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保水剂又名吸水剂,是一种高分子聚合物,具有超高吸水和保水性能,是近几年迅速发展起来的一种新型化工材料。一克保水剂能吸收数百克甚至上千克的无离子水。我国水资源贫乏,全国干旱地区约占总耕地面积的51%。干旱是这些地区发展农业生产的严重障碍。提高土壤有效水分的利用率,对克服农业生产的不利影响和节约用水都具有重要意义。保水剂的推广应用,有助于解决这一问题。 60年代初,美国就研制出保水剂。经过大田试验取得效果后,又广泛应用于粮食作物、经济作物
Water-retaining agent, also known as water-absorbing agent, is a kind of high molecular polymer with ultra-high water-absorption and water-holding property. It is a new type of chemical material developed rapidly in recent years. One gram of water retention agent can absorb hundreds of grams or even kilograms of ion-free water. China’s water resources are scarce, and the arid areas of China account for about 51% of the total cultivated land. Drought is a serious obstacle to the development of agricultural production in these areas. Increasing the availability of soil available water is of great importance to overcoming the adverse effects of agricultural production and saving water. The promotion and application of water-retaining agent will help to solve this problem. In the early 1960s, the United States developed a water-retaining agent. After field tests to obtain results, but also widely used in food crops, cash crops