纳米氧化物和溶磷真菌对盆栽水稻生物量和土壤有效磷含量的影响  

Effects of Nano-oxide and Phosphorus-dissolving Fungi on Rice Biomass and Soil Available Phosphorus Content

作　　者：贾艳艳 徐建明[2] 吴传万[3] 顾大路[3] 杨文飞[3] 杜小凤[3] 王伟中[3] 诸俊[3] JIA Yan-yan;XU Jian-ming;WU Chuan-wan;GU Da-lu;YANG Wen-fei;DU Xiao-feng;WANG Wei-zhong;ZHU Jun(Key Laboratory of Agro-Environment in Downstream of Yangze Plain,Ministry of Agriculture and Rural,Nanjing 210014,China;Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake(Huaiyin Normal University),Huai'an 223300,China;Huaiyin Agricultural Science Research Institute of Xuhuai District,Huai'an 223001,China)

机构地区：[1]农业农村部,长江下游平原农业环境重点实验室,江苏南京210014 [2]江苏省环洪泽湖生态农业生物技术重点实验室(淮阴师范学院),江苏淮安223300 [3]江苏徐淮地区淮阴农业科学研究所,江苏淮安223001

出　　处：《江西农业学报》2021年第8期34-39,共6页Acta Agriculturae Jiangxi

基　　金：农业农村部长江下游平原农业环境重点实验室开放课题(AE2018003);江苏省自然科学基金项目(BK20200264);江苏省环洪泽湖生态农业生物技术重点实验室开发课题(17HZHL007);淮安市农科院院长科研基金项目(HNY201601、HNY201709);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)。

摘　　要：采用室内培养基培养和盆栽试验方法研究了不同粒径、不同浓度纳米ZnO和纳米TiO_(2)对烟曲霉菌(Aspergillus fumigatus L.)和黄曲霉菌(Aspergillus flavus L.)溶磷能力、土壤有效磷含量、土壤磷酸酶活性和水稻生物量的影响。结果表明:添加100 mg/kg剂量的纳米TiO_(2)+接种A.flavus处理能够显著提高难溶性磷酸盐培养基滤液中的有效磷含量;添加30 nm粒径纳米ZnO 10 mg/kg+接种A.fumigatus处理的培养基中有效磷含量、盆栽水稻土壤磷酸酶活性以及水稻地下生物量均显著增加;添加500 mg/kg剂量的纳米ZnO抑制了真菌对磷酸盐的溶解能力。Potted experiments were conducted to study the effects of different particle sizes and different concentrations of nano-ZnO and nano-TiO_(2)on soil available phosphorus content,soil phosphatase activity,rice biomass and phosphate solubilization of Aspergillus fumigatus L.and Aspergillus flavus L.The results showed that when nano-TiO_(2)was inoculated with A.flavus at the concentration of 100 mg/kg,the content of available phosphorus in the filtrate of insoluble phosphate medium was significantly increased.The available phosphorus content of filtrate,soil phosphatase activity and underground biomass of rice were significantly increased when nano-ZnO with 30 nanoparticle size was inoculated with A.flavus at a concentration of 10 mg/kg.The nano-ZnO at the concentration of 500 mg/kg inhibited the phosphate-solubilizing ability of fungi.

关 键 词：纳米氧化锌 土壤有效磷 磷酸酶活性 水稻生物量 溶磷真菌 

分 类 号：S511.062[农业科学—作物学]