摘要
保水剂应用是一种化学节水技术。实验表明,土壤中保水剂含量在0 .1% 以下时,土壤团聚体增加,土面蒸发明显降低;模拟降雨实验证明,0.1% 保水剂的土壤在15% 坡度下,其水分入渗增加43 % ,土壤流失率减少54 % 。田间试验发现,土壤穴施保水剂使马铃薯增产52 % ;盆栽实验证明,土壤加入保水剂后的玉米和烤烟抗旱存活率增加,保苗效果好。
Super absorbent polymer is a kind of chemical material for water saving. Based on the experimental results, soil aggregates amount is increased markedly, evaporation of soil surface is decreased when content of the polymer in soil is below 0.1%. The experiments showed that final water infiltration rate of soil with 0.1% polymer is higher 43% than that of the control under slope 15%, the soil loss rate reduced by 54%. According to the results of field test and pot experiments, the yield of potato in soil with the polymer 1~3g for one plant increased by 52%, live rate of corn and Tabasco with the polymer is increased markedly under water stress, the growth condition of the plant is better than that of the control.
基金
泾阳永泰田投资发展有限公司资助
关键词
保水剂
土壤改良
抗旱节水
团聚体
土面蒸发
super absorbent polymer
soil improvement
drought resistant and water saving
