污泥炭与土壤不同配比对园林植物生长的影响  

Effects of Different Ratios of Sludge-derived Biocha r and Soil on the Growth of Garden Plants

作　　者：胡宗涛 姜良军 冯向辉 马玉恒 程永嘉 王惠群[1] 彭晓英[1] HU Zongtao;JIANG Liangjun;FENG Xianghui;MA Yuheng;CHENG Yongjia;Wang Huiqun;Peng Xiaoying(Bioscience and Biotechnology College,Hu′nan Agricultura l University,Changsha 410128,Hu′nan,China;Hu′nan Dingjiu Energy Co.LTD,Changsha 410128,Hu′nan,China)

机构地区：[1]湖南农业大学生物科学技术学院,湖南长沙410128 [2]湖南鼎玖能源股份有限公司,湖南长沙410128

出　　处：《福建林业科技》2023年第2期39-46,共8页Journal of Fujian Forestry Science and Technology

基　　金：横向项目(园林植物专用生物污泥炭基质的应用研究,2021kjc-js002);湖南省大学生创新创业训练计划项目(园林植物专用生物污泥炭基质的应用基础研究,S202110537022);湖南省大学生创新创业训练计划项目(虎杖花外蜜腺的发育解剖学及生物学意义研究,s202010537080)。

摘　　要：为探索生活污泥炭(炭)与土壤不同配比对园林植物生长的影响,采用完全随机组合设计,于2021年4月11日以一串红和莫娜紫香茶菜为试验材料,进行炭与生土/泥炭土的0~100%配比盆栽试验,测定植物的生长、成花和光合作用参数。结果表明,30%~40%炭土基质的植物分支数和叶片数多、冠幅大、花数较多,且花期最长,比纯生土或纯泥炭土,株高提升2~3.5 cm,SPAD值提升9.00%~10.00%、净光合速率提升21.56%~58.25%、气孔导度提升59.81%~100%、胞间CO_(2)提升3.70%~18.21%、蒸腾速率提升38.31%~71.45%,试验表明50%以下炭土基质的植物生长特性都高于生土或泥炭土。相同配比的炭-泥炭土基质中的植物的生长生理特性优于炭-生土基质。研究结果可为生活污泥炭高值化利用提供参考。In order to explore the effects of different ratios of Domestic sludge-derived biochar(DS-BC)and soil on the growth and physiology of garden plants,a completely random combination design was adopted to determine the growth,flowering and photosynthesis parameters of plants by carrying out the pot experiment with 0~100%ratio of DS-BC and raw soil/peat moss on April 11,2021.Salvia splendens and Plectranthus ecklonii′Mona Lavender′were used as experimental materials.The results showed that the plants in 30%~40%charcoal-soil substrate had more branches and leaves,larger crown width,more flowers,and the longest flowering period.Compared with raw soil/pead moss,the plant height increased by 2~3.5 cm,the SPAD value increased by 9.00%~10.00%,the net photosynthetic rate increased by 21.56%~58.25%,the stomatal conductance increased by 59.81%~100%,the intercellular CO_(2) increased by 3.70%~18.21%,and the transpiration rate increased by 38.31%~71.45%.According to the experiment,the growth characteristics of plants in carbonaceous soil under 50%are higher than that in raw soil or peat soil.The meanwhile growth physiological characteristics of plants grown in the same ratio substrate of biochar-peat moss substrate were better than those in biochar-raw soil substrate,which provided theoretical and practical support for the high-value utilization of domestic sludge-derived biochar.

关 键 词：生活污泥炭 炭土基质 园林植物 生长生理 

分 类 号：S688[农业科学—观赏园艺] S606.1[农业科学—园艺学]