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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 the condition of limited water, the growth of container seedlings, the survival period, the dynamic changes of leaf and soil moisture were studied. The results showed that the water retaining agent could increase the field water holding capacity. After stopping the water supply, Decreased slowly, and the soil water content increased with the increase of the amount of water retaining agent. The relative water content of container seedlings with water retaining agent decreased slowly, and the growth of container seedlings was delayed for a long time.