CAJ | 학술논문

试验结果表明，施用聚丙烯酰胺可以加速土壤水分入渗，减少渗出量，抑制土壤水分蒸发，从而增强土壤的持水能力．6 kg土壤施用0.2～0．5 g聚丙烯酰胺，土壤水分入渗时间为对照的2.1%～6．1％，土壤水分渗出量为对照的3.2%～48．5％；土壤水分含量比对照高2%，并可以降低土壤容重，形成良好的疏松结构．
시험결과표명，시용취병희선알가이가속토양수분입삼，감소삼출량，억제토양수분증발，종이증강토양적지수능력．6 kg토양시용0.2～0．5 g취병희선알，토양수분입삼시간위대조적2.1%～6．1％，토양수분삼출량위대조적3.2%～48．5％；토양수분함량비대조고2%，병가이강저토양용중，형성량호적소송결구．
Studies were conducted on the effect of polyacrylamide on water-retaining characteristics of sandy soil.The results showed that applying polyacrylamide to sand could increase soil water infiltration speed,reduce soil water seepage and evaporation,and thus improve the soil water-retaining characteristics.Applying 0.2～0．5 g polyacrylamide to 6 kg soil,the water infiltration time was 2.1～6．1 per cent of the control,soil water seepage was 3.2%～48．5％ of the control,soil water content was 2 percent higher than that of the control. Aapplying polyacrylamide to sandy soil could also alleviate increment of soil bulk density and maintain better soil structure.