腐植酸水溶肥对三色堇生长发育及光合特性的影响  

Effects of Humic Acid Water-soluble Fertilizer on the Growth,Development and Photosynthetic Characteristics of Pansy

作　　者：杨媛 李志敏 田振亚 李鸣凤 Yang Yuan;Li Zhimin;Tian Zhenya;Li Mingfeng(Wuhan University of Bioengineering,Wuhan,430345)

机构地区：[1]武汉生物工程学院,武汉430345

出　　处：《腐植酸》2024年第2期38-41,共4页Humic Acid

基　　金：创新创业训练计划项目(项目编号S202212362036);湖北省教育厅科学研究计划指导性项目(项目编号B2022303)。

摘　　要：本文研究了腐植酸水溶肥对盆栽花卉三色堇生长的影响,并比较了不同施用时期的肥效。试验共设3个处理:常规施肥(T1)、常规施肥+基施腐植酸水溶性肥(T2)和常规施肥+追施腐植酸水溶性肥(T3)。结果表明:在三色堇生长发育方面,相比T1,T2和T3处理均有效果,T3处理在促进三色堇花朵、叶片及单株鲜重效果更明显,T2处理在株高方面效果更明显;在光合特性方面,相比T1,T2和T3处理均可以有效促进叶片数发育,提升促进光合色素叶绿素b含量从而增加光合面积,增强了光合效果,T2相比T1和T3相比T1二者效果差异较小;相比T1,T3处理显著提高气孔导度,增加光合速率进而促进了三色堇的生长发育。综上所述,常规施肥的基础上增施腐植酸水溶肥料可以促进三色堇的生长发育,以T3处理效果更佳。The effects of humic acid water-soluble fertilizer on the growth of potted flower pansies were studied,and the fertilizer efficiency at different application periods was compared in this study.Three treatments were set as follows,i.e.,conventional fertilization(T1),conventional fertilization+basal application of humic acid water-soluble fertilizer(T2),and conventional fertilization+top application of humic acid water-soluble fertilizer(T3).The results showed that,compared to T1,T2 and T3 were effective on the growth and development of pansy.In particular,T3 was more effective in promoting the fl ower,leaf,and plant fresh weight of pansy,while T2 was more effective in plant height.In terms of photosynthetic characteristics,compared to T1,both T2 and T3 treatments could effectively promote the development of leaf number,increase the content of chlorophyll b which promoted photosynthetic pigment,thereby increasing the photosynthetic area and enhancing the photosynthetic effect.There was little difference in the effect of T2 compared to T1 and T3 compared to T1.Compared to T1,T3 increased significantly the stomatal conductance and photosynthetic rate,promoted the growth and development of pansy.In summary,the addition of humic acid water-soluble fertilizer on the basis of conventional fertilization could promote the growth and development of pansy,and the effect of T3 was better.

关 键 词：腐植酸 三色堇 光合指标 生长 

分 类 号：TQ444.6[化学工程—化学肥料工业] S681[农业科学—观赏园艺]