醋糟对土壤改良及兔眼蓝浆果幼苗生长的影响

发布时间：2018-08-07 11:18

【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(P0.05)升高,而容重却明显下降;S1和S2基质的p H值略下降,S3和S4基质的p H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p H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]:To explore the effects of vinegar lees on soil improvement and blueberry (Vaccinium spp.) The effects of growth on the growth of two year old seedlings of the rabbit blue berry (V.ashei Reade) variety 'Brightwell' were used as experimental materials. Using pot culture method to control soil (CK), S1 [V (vinegar grains): v (soil) 25: 75] S 2 [V (vinegar grains): v (soil) 50: 50] S3 [V (peat): v (soil) 50: 50] and S4 [V (pine bark): v (soil) 50W 50] substrates and cultivated in these substrates The related indicators of 'brilliant' are compared, The correlation analysis was carried out on the relative indexes between the variety and the substrate. The results showed that the electrical conductivity, total nitrogen content, total phosphorus content, organic matter content and urease activity of the four substrates were significantly higher than those of the control (P0.05). The pH value of S _ 1 and S _ 2 substrates decreased slightly, while the pH value of S _ 3 and S _ 4 substrates increased slightly, while the activity of acid phosphatase was opposite. The bulk weight of S 2 matrix decreased 15.29%, and its electrical conductivity, total nitrogen content, total phosphorus content and organic matter content increased by 102.71%, 239.01% and 531.71%, respectively. The urease and acid phosphatase activities increased by 533.33% and 95.47.4%, respectively. There was no significant difference in basal diameter, leaf total nitrogen and total phosphorus content, but the average single fruit mass, fruit shape index, shoot and root dry weight, root to shoot ratio, root total nitrogen and total phosphorus content of the variety were different from those of the control to some extent. The dry weight per plant and the ratio of root to shoot were significantly higher than that of the control. The root dry weight, root to shoot ratio and total nitrogen and phosphorus content of the variety increased by 83.9472.00% and 39.64%, respectively, compared with the control. The results of correlation analysis showed that the physicochemical properties of the substrate and the activities of urease and acid phosphatase had great influence on the root / shoot ratio and root total nitrogen content of the variety 'brilliant'. The root / shoot ratio of the variety was positively correlated with the conductivity of the substrate and was significantly correlated with the activities of urease and acid phosphatase, and the root total nitrogen content was negatively correlated with the pH value of the substrate. There was a significant negative correlation with the bulk density of the substrate and a very significant positive correlation with the activities of urease and acid phosphatase. As a whole, vinegar lees had a certain improvement effect on soil, and could promote the growth of 'brilliant' root system of rabbit blue berry variety 'brilliant', and the best effect was to add 50% vinegar grains.
【作者单位】：江苏省中国科学院植物研究所(南京中山植物园);江苏省农业科学院;
【基金】：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)
【分类号】：S156;S663.9

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