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对土壤保水剂（本中心实验室合成）在果园土壤的保水保墒作用及其持续作用的研究结果表明,施用土壤保水剂后．土壤水分含量第一年可提高9％以上，第二年可提高6％以上．第三年可提高4％以上；在约45cm土层附近存在一个防止土壤水分下渗的防水层，该处土壤水分含量最高。土壤保水剂的保水作用是通过最大限度利用自然降雨和防止水分下渗及减少土壤水分蒸发来实现的。
The study on the effect of soil water retention agent (synthesized by our laboratory) on soil moisture preservation and soil moisture conservation and its sustainable effect showed that soil water retention agent was applied. Soil moisture content can be increased by more than 9% in the first year and over 6% in the second year. The third year can be increased by 4% or more; in the vicinity of about 45cm soil there is a waterproof layer to prevent infiltration of soil moisture, which has the highest soil moisture content. Water retention of soil water retention agents is achieved by maximizing natural rainfall and preventing water infiltration and reducing soil water evaporation.