【作者】 孙兆法； 李梅； 盛利； 张淑霞； 宋朝玉；

【Author】 SUN Zhao-fa LI Mei SHENG Li ZHANG Shu-xia SONG Chao-yu(Qingdao Academy of Agricultural Science,Oingdao 266100)

【机构】 青岛市农业科学院；

【摘要】 中药渣持水能力差,随着蛭石添加比例的提高,基质的持水孔隙度和吸水量增加,但是一品红的枝长、株高、冠幅、植株各部的鲜重均以添加10%蛭石的基质最大,表明蛭石的最佳用量为10%。与添加石灰相比,不加石灰时苞片鲜重显著降低。浇水方法中,各个生长指标均以花盆底部浇水最大,花盆顶部浇水且在花盆底部加塑料接水碟时次之,常规浇水方法最低。花盆底部浇水时盐分在基质表面积累,基质下部(根区)EC较低;加接水碟时基质盐分分布较为均匀。更多还原

【Abstract】 Chinese medicine residue can be used as substrate in pot flower production if some methods are taken to increase its ability to retain water.In order to reach it,we incorporate vermiculite into medicine residue.The water-retaining porosity and water absorption increased with the increasing rate of vermiculite in the substrate.Stem length,plant height,canopy diameter, fresh weight of poinsettia reached the highest when the rate of vermiculite was 10% in the substrate.The optimal rate of vermic- ulite in the substrate is 10%.Adding lime into the substrate could increase the fresh weight of bract in poinsettia.The subirri- gated plants were the best with the highest growth parameters,and the conventional irrigated plant was the worst.Salt accumu- lated in the upper part of the pot and the salt content of the lower part was low when the plants were subirrigated.The salt dis- tribution was equal among upper and lower parts of the substrate when a dish was placed under the pot,and the plant grew bet- ter than conventional irrigation.更多还原