丛枝菌根真菌和解磷细菌双接种对小麦磷肥利用率的影响OACSTPCD
Effects of Co-inoculation of Arbuscular Mycorrhizal Fungi and Phosphate-solubilizing Bacteria on Phosphate Fertilizer Utilization Efficiency in Wheat
试验采用单因素随机区组设计,以接种复合灭活菌剂为对照,分析了2种丛枝菌根真菌(Rhizoph-agus irregularis,RI;Glomus intraradices,GI)和4种解磷细菌(Bacillus amyloliquefaciens,BA;Bacillus megate-rium,BM;Arthrobacter pascens,AP;Bacillus subtilis,BS)双接种对小麦生长和磷肥利用率的影响.结果表明:(1)与对照相比,接菌组小麦的菌根侵染率、产量、速效磷含量均显著提高,而土壤pH值显著下降,小麦产量和速效磷含量在接菌处理下分别提高了7.31%～27.00%和19.03%～60.35%.(2)GI+AP处理的产量最高,添加RI接菌组的速效磷含量、碱性磷酸酶活性均高于添加GI的接菌组,其中以RI+BS处理的最高;RI+BS和RI+BA处理的磷肥吸收利用率最高,分别为30.86%和27.94%.(3)相关性分析结果表明,小麦磷肥吸收利用率与菌根侵染率、籽粒重、籽粒磷含量、速效磷含量、碱性磷酸酶活性呈极显著正相关,与叶片磷含量呈显著正相关,与土壤pH值呈极显著负相关.综上,双接种丛枝菌根真菌和解磷细菌有利于增强土壤碱性磷酸酶活性、增加土壤速效磷含量、降低土壤pH值,从而提高小麦产量和磷素积累量,其中RI+BS处理对小麦磷肥利用率的提高作用最为显著.
The inoculation of inactivated fungi was used as the control,and a single factor randomized block design was used to analyze the effects of co-inoculation of two arbuscular mycorrhizal fungi(Rhizophagus irregularis,RI;Glomus intraradices,GI)and four phosphate-solubilizing bacteria(Bacillus amyloliquefaciens,BA;Bacillus megaterium,BM;Arthrobacter pascens,AP,Bacillus subtilis,BS)on wheat growth and phosphate fertilizer utilization efficiency.The results showed that:(1)Compared with the control,the colonization rate,yield and available phosphorus content of wheat were significantly increased,while the soil pH was significantly decreased.The yield and available phosphorus content were increased by 7.31%～27.00%and 19.03%～60.35%,respectively.(2)GI+AP had the highest yield.The content of available phosphorus and the alkaline phosphatase activity in the inoculation group supplemented with RI were higher than those in the inoculation group supplemented with GI,and RI+BS was the highest.The phosphate fertilizer utilization efficiency in RI+BS and RI+BA were 30.86%and 27.94%respectively.(3)Correlation analysis showed that the phosphate fertilizer utilization efficiency in wheat was extremely significantly positively correlated with colonization rate,grain weight,phosphorus content in grain,available phosphorus content and alkaline phosphatase activity,significantly positively correlated with leaf phosphorus content,and extremely significantly negatively correlated with soil pH.In conclusion,co-inoculation of arbuscular mycorrhizal fungi and phosphate-solubilizing bacteria could enhance soil alkaline phosphatase activity,increase soil available phosphorus content,decrease soil pH,and thus increase wheat yield and phosphorus accumulation.RI+BS had the most significant effect on improving the phosphate fertilizer utilization efficiency in wheat.
殷小冬;诸俊;贾艳艳;李其胜;顾大路;杨文飞;杜小凤;刘汉松;文廷刚;李可;宋佳敏
江苏徐淮地区淮阴农业科学研究所,江苏 淮安 223001淮安市农业农村局,江苏 淮安 223001
农业科学
丛枝菌根真菌解磷细菌小麦磷肥吸收利用率
Arbuscular mycorrhizal fungiPhosphate-solubilizing bacteriaWheatPhosphate fertilizer utilization efficiency
《江西农业学报》 2024 (002)
54-60 / 7
江苏现代农业产业单项技术研发项目[CX(22)3127];淮安市自然科学研究计划项目(HAB202376);淮安市农业科学研究院科研发展基金项目(HNY202130);淮安市农业科学研究院高层次引进人才科研启动发展基金项目(002201901413);淮安市农业科学研究院科研发展基金项目(HNY202028).
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