【摘要】 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。更多还原

【Abstract】 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.更多还原