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高吸水性树脂在土壤里的保水性能与其溶胀度一致。按保水性能顺序:IAC13(长春应化所)>KH841(中科院北京化学所)>兰州晶体(兰州应化所)。这种保水性能也和土壤种类有关,其顺序是:粗砂土>壤砂土>细砂土>砂壤土。树脂可影响土壤物理性状,增加土壤代换量,增加对肥料的吸附作用,减少化肥淋失。在无外源水栽培作物时树脂的掺入可延长生育日数,在自然条件下可改善生长环境,提高产量。树脂有效量为(0.25～0.75)%。但对某些果树,蔬菜等未看到明显效果。
Superabsorbent resin in the soil water retention performance and its degree of swelling consistent. According to the order of water retention performance: IAC13 (Changchun Institute of Applied Chemistry)> KH841 (Beijing Institute of Chemical Technology)> Lanzhou Crystal (Lanzhou Institute of Applied Chemistry). This water retention properties and soil types, the order is: coarse sand> sandy soil> fine sand> sandy loam. Resin can affect the physical properties of the soil, increase the amount of soil substitution, increase the adsorption of fertilizers and reduce the leaching of fertilizers. The incorporation of resin in the absence of exogenous hydroponic crops can extend the number of days of fertility and improve the growth environment and yield under natural conditions. The effective amount of resin is (0.25-0.75)%. But for some fruit trees, vegetables, etc. did not see significant results.