摘 要：
采用盆栽试验方法,研究了城市污泥施肥对金叶女贞(Ligustrum vicaryi)、小叶黄杨(Buxus sinica)、红叶小檗(Berberis thunbergii cv.atropurpurea)3种绿化苗木生长生理特性的影响,以筛选不同绿化苗木适宜的污泥用量。结果表明,3种绿化植物对污泥施用量的耐受能力不同,随着污泥施用量增加,金叶女贞生长量随之增加;小叶黄杨除T3处理抑制其生长外,T2和T1处理均促进其生长;红叶小檗T1处理较对照生长指标有所增加,但T2和T3处理均抑制其生长;随着污泥施用量的增加,3种绿化植物叶片叶绿素a和叶绿素b含量均比对照有所增加,净光合速率增强;污泥施肥使3种绿化植物矿质养分吸收发生改变,氮素含量增加最明显。表明在一定范围内,污泥施肥可以作为绿化植物的培养基质,为植物提供养分,促进其生长;金叶女贞对污泥的耐受能力较强,小叶黄杨适宜污泥施肥量在30%左右,红叶小檗以10%左右适宜。
译 名：
Effects of Urban Sludge Fertilizer on Growth and Physiological Characteristics of Landscape Greening Seedling
作 者：
HAO Rui-juan;Forestry Department of Shanxi Lu'an Mining Group Co. Ltd.;
关键词：
sludge fertilizer;;landscape greening plants;;growth and physiological characteristics
摘 要：
Study on the effects of urban sludge fertilizer on the growth and physiological characteristics of three landscape plants of Ligustrum vicaryi, Buxus sinica, Berberis thunbergii cv. atropurpurea, a pot experiment was set up with three sludge applied ratio: low levels 10%(T1), medium 30%(T2)and high amount 50%(T3), and with no applied sludge as control(CK). Different sludge treatment was carried out to the three plants. The results showed that the tolerance ability of the three landscape greening plants was different based on the sludge content. Ligustrum vicaryi grew better with the increase of sludge applied. Buxus sinica growth was inhibited under T3 treatment, but improved under T2 and T2 treatments. Berberis thunbergii cv. atropurpurea had a better growth under T1, but a weak growth under T2 and T3. Control with the CK treatment, chlorophyll a and chlorophyll b contents increased with the increasing of applying sludge content, net photosynthesis ratio also increased. The nutrient uptake under the four treatments were different, especially a high concentration under sludge applied treatment. Among a certain range, the sludge could be used as a fertilizer for greening plant cultivation, provide nutrients for plants and promot its growth. Ligustrum vicaryi tolerance ability to sludge was higher, the suitable sludge applied amount for Buxus sinica was 30%, while 10% for Berberis thunbergii cv. atropurpurea.
