施加解磷菌剂对油茶根际微生物和土壤酶活性的影响  

Effects of Different Phosphate-Solubilizing Bacteria on Rhizosphere Microorganism and Enzyme Activities of Camellia oleifera

作　　者：李正昀 王舒 张扬[1] 张林平[1] 李冬[1] 

机构地区：[1]江西农业大学林学院,江西特色林木资源培育与利用2011协同创新中心,江西南昌330045

出　　处：《西北林学院学报》2018年第1期188-192,共5页Journal of Northwest Forestry University

基　　金：国家自然科学基金(31660189);江西省自然科学基金(20161BAB204187).

摘　　要：采用盆栽油茶的2因素完全随机区组设计,研究了3种施磷水平下不同解磷菌剂对油茶苗的根际微生物数量和酶活性的影响。结果表明,添加解磷菌剂后油茶根际土壤中真菌数量减少,细菌和放线菌数量却增加,同时提高了土壤蔗糖酶和脲酶活性;各种菌剂对根际微生物数量和酶活性的影响随着施磷水平的提高而逐渐增强,且混合菌剂相对于单一菌种对根际微生物数量及酶活性的影响更显著。A potting experiment was conducted in a completely randomized block design to evaluate the effects of two phosphate-solubilizing bacteria （PSB） （Bacillus aryabhattai ,Pseudomonas auricularis） and their mixture on rhizosphere soil microorganism and enzyme activities subjected to three application levels of ealcium-superphosphate. The results showed that inoculation of two PSB and their mixture reduced the amounts of rhizosphere fungi,increased the amounts of bacteria and actinomyces,and enhanced activities of invertase and urease. However, the effects on rhizosphere microorganism and enzyme activities enhanced with the increase of calcium-superphosphate content,and the influence of mixed bacteria was stronger than that of any single bacterium on the amounts of microorganism and anzyme activities.

关 键 词：油茶 解磷细菌 根际微生物 土壤酶活性 

分 类 号：S794.4[农业科学—林木遗传育种]