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合成超吸水聚合物是在长期干旱的环境下有助于植物成活与生长的土壤调节剂。通过试验调查淀粉聚丙烯腈接枝共聚体、乙烯醇—丙烯酸合成类聚合物、丙烯酰胺—碱金属合成聚合物 (聚丙烯酰胺 ) 3种聚合物对灌水有限的粗沙土上种植的莴苣和大麦生长的影响 ,表明在现有聚合物存在的条件下 ,聚合物类型对大麦和莴苣到达萎蔫点的时间影响随着聚合物浓度的增加而增加。即使较低的浓度 (0 2 % ) ,到达萎蔫点的时间也比未施聚合物的沙土延长了大约 5倍 ;施用聚合物可促使作物干物质质量增加 ,最高处理水平比对照增产 4倍 (P <0 0 0 1) ;水分利用率最大增长了 3倍。
Synthetic superabsorbent polymers are soil conditioners that help plant survival and growth in prolonged periods of drought. Three kinds of polymers, starch polyacrylonitrile graft copolymer, vinyl alcohol-acrylic synthetic polymer and acrylamide-alkali metal synthetic polymer (polyacrylamide), were used to investigate the effect of lettuce and barley The effect of growth shows that the effect of polymer type on the time it takes for barley and lettuce to reach the wilting point increases with increasing polymer concentration in the presence of the existing polymer. Even at the lower concentration (0.2%), the time to wilting point was approximately 5 times longer than the polymer-free sand; the application of polymer promoted the increase of crop dry matter mass with the highest treatment level increasing 4 times P <0 0 0 1). The maximum water use efficiency increased 3 times.