2018年6月18日 星期一
醋糟对土壤改良及兔眼蓝浆果幼苗生长的影响
Effect of vinegar residue on soil amelioration and seedling growth of Vaccinium ashei
2017年 第26卷 第4期 页码[25-31]
摘要

为了探究醋糟对土壤改良及蓝浆果(Vaccinium spp.)生长的影响,以兔眼蓝浆果(V. ashei Reade)品种‘灿烂’(‘Brightwell’)的2年生幼苗为实验材料、 纯土壤为对照(CK),采用盆栽法对S1〔V(醋糟)∶V(土壤)=25∶75〕、S2〔V(醋糟)∶V(土壤)=50∶50〕、S3〔V(泥炭)∶V(土壤)=50∶50〕和S4〔V(松树皮)∶V(土壤)=50∶50〕基质及种植于这些基质中品种‘灿烂’的相关指标进行了比较,并对该品种与基质的相关指标进行了相关性分析。结果表明:与对照相比,4种基质的电导率、全氮含量、全磷含量、有机质含量和脲酶活性大多显著(P<0.05)升高,而容重却明显下降;S1和S2基质的pH值略下降,S3和S4基质的pH值略升高,而酸性磷酸酶活性则相反。其中,S2基质的容重下降了15.29%,其电导率、全氮含量、全磷含量和有机质含量分别升高了102.71%、239.01%、92.86%和531.71%,其脲酶和酸性磷酸酶活性分别升高了533.33%和95.47%。4种基质中品种‘灿烂’的株高、基径以及叶全氮和全磷含量与对照无显著差异,而该品种的平均单果质量、果形指数、单株地上部和根干质量、根冠比以及根全氮和全磷含量则与对照有一定差异,并且,其单株根干质量和根冠比总体上显著高于对照。其中,S2基质中该品种的单株根干质量、根冠比以及根全氮和全磷含量分别较对照升高了83.94%、72.00%、23.89%和39.64%。相关性分析结果表明:基质的理化性质及脲酶和酸性磷酸酶活性对品种‘灿烂’的根冠比和根全氮含量影响较大。其中,该品种的根冠比与基质的电导率呈显著正相关,与脲酶和酸性磷酸酶活性呈极显著正相关;该品种的根全氮含量与基质的pH值呈极显著负相关,与基质的容重呈显著负相关,与脲酶和酸性磷酸酶活性呈极显著正相关。总体来看,醋糟对土壤具有一定的改良效果,并能够促进兔眼蓝浆果品种‘灿烂’根系生长,且以添加体积分数50%醋糟的效果最佳。

Abstract

In order to explore the effect of vinegar residue on soil amelioration and growth of Vaccinium spp., taking two-year-old seedlings of cultivar ‘Brightwell’ of V. ashei Reade as experimental materials and pure soil as the control (CK), related indexes of substrates of S1 〔V(vinegar residue)∶V(soil)=25∶75〕, S2 〔V(vinegar residue)∶V(soil)=50∶50〕, S3 〔V(peat)∶V(soil)=50∶50〕 and S4 〔V(pine bark)∶V(soil)=50∶50〕, and cultivar ‘Brightwell’ planted in these substrates were compared by using pot-culture method, and correlation analysis on related indexes between this cultivar and substrates was conducted. The results show that compared with the control, electric conductivity, total nitrogen content, total phosphorus content, organic content, and urease activity of four substrates mostly increase significantly (P<0.05), while their bulk density decreases obviously; pH value of S1 and S2 substrates decreases slightly, and that of S3 and S4 substrates increases slightly, but their acid phosphatase activity is reverse. In which, bulk density of S2 substrate decreases by 15.29%, and its electric conductivity, total nitrogen content, total phosphorus content, and organic content increase by 102.71%, 239.01%, 92.86%, and 531.71%, respectively, while its urease and acid phosphatase activities increase by 533.33% and 95.47%, respectively. There is no significant difference in height, basal diameter, total nitrogen and total phosphorus contents in leaf of cultivar ‘Brightwell’ between four substrates and the control, while there are some differences in average weight per fruit, fruit shape index, dry weights of above-ground part and root per plant, root/shoot ratio, total nitrogen and total phosphorus contents in root of this cultivar between four substrates and the control, and their dry weight of root per plant and root/shoot ratio are significantly higher than those of the control in general. In which, dry weight of root per plant, root/shoot ratio, total nitrogen and total phosphorus contents in root of this cultivar in S2 substrate increase by 83.94%, 72.00%, 23.89%, and 39.64%, respectively compared with the control. The correlation analysis result shows that the effects of physicochemical properties, urease and acid phosphatase activities of substrate on root/shoot ratio and total nitrogen content in root of cultivar ‘Brightwell’ are relatively great. In which, there is a significantly positive correlation of root/shoot ratio of this cultivar with electric conductivity of substrate, and an extremely significantly positive correlation with urease and acid phosphatase activities of substrate; there is an extremely significantly negative correlation of total nitrogen content in root of this cultivar with pH value of substrate, a significantly negative correlation with bulk density of substrate, and an extremely significantly positive correlation with urease and acid phosphatase activities of substrate. In general, vinegar residue has some amelioration effects on soil, and can promote root growth of cultivar ‘Brightwell’ of V. ashei, and the effect of adding vinegar residue with volume fraction of 50% is the best.

关键词醋糟; 兔眼蓝浆果; 土壤改良; 幼苗生长; 相关性分析
Key wordsvinegar residue; Vaccinium ashei Reade; soil amelioration; seedling growth; correlation analysis
作者李琪1, 於虹1, 王支虎2, 曾其龙1, 韦继光1, 姜燕琴1, 蒋佳峰1
所在单位1. 江苏省中国科学院植物研究所(南京中山植物园), 江苏 南京 210014; 2. 江苏省农业科学院, 江苏 南京 210014
点击量359
基金项目江苏省农业科技自主创新资金项目〔CX(16)1016〕; 江苏省重点研发计划(现代农业)项目(BE2017373); 国家自然科学基金资助项目(31601709); 江苏省自然科学基金资助项目(BK20160597)