不同保水剂处理对容器苗生长及土壤水分影响的研究

Study on the Effects of Soil Water and Container Seedlings Growth of Different Hydrogel Treetmnets

在有限水分条件下,对容器苗的生长率、存活期、叶片和土壤水分动态变化进行研究,结果表明:保水剂能提高土壤田间持水量;在停止供水后,有保水剂处理的土壤含水量下降缓慢,土壤含水量始终随着保水剂用量的增加而增加;有保水剂处理的容器苗叶片相对含水量下降延迟,容器苗生长受到抑制的时间延后。

Under limited water condition, the study was carried out on survival time and growth efficiency of container seedling and water content of soil and leaves. The results were obtained .The hydrogel increased the full water content; Soil water content with hydrogel reduced slowly and Soil water content increased with the increase of hydrogel content under no water supply condition; Relative water content of leaves decreased slowly and the seeding growth was retarded later with the increase of hydrogel; Container Seedlings survival time was prolonged by the application of hydrogel.