解磷菌分离及其对内蒙古布龙图低品位磷矿利用研究  

Isolation of Phosphate Solubilizing Bacteria and Its Utilization to Low Grade Phosphorous Rocks from Bulongtu Area,Inner Mongolia

作　　者：田晓娟[1] 杜德平[1] 王艳[1] 吴永慧[2] 彭立娥[2] 

机构地区：[1]中国地质科学院地质力学研究所,北京100081 [2]北京大学分子与化学工程学院,北京100871

出　　处：《地球学报》2007年第4期377-381,共5页Acta Geoscientica Sinica

基　　金：国家自然基金项目(编号:40504011)资助

摘　　要：从内蒙古布龙图磷矿区表层土壤中取样,分离得到了几个解磷菌株,测定了每个菌株的解磷能力。分离的芽孢杆菌(Bacillus sp.)A20、AC2013和AC2015,对Ca3(PO4)2和磷矿石粉中磷的分解率为21%～25%,它们对磷的分解具有协同效应。用A20和AC2013的菌液制成的生物复合磷肥施于马铃薯,增产23·08%,微生物法将成为利用北方低品位磷矿的有效途径之一。Strains of phosphate solubilizing bacteria were isolated from soil samples of various soil classes collected in the Bulongtu phosphorus ore district of Inner Mongolia. Phosphate solubilization of each strain was estimated. The phosphate solubilization rates of strains A20, AC2013 and AC2015 （Bacillus sp. ） for Ca3（PO4） 2 and phosphorus rock are 21% 25%. They have the synergistic effect on phosphate solubilization. The application of the compound bio-fertilizer composed of phosphate made from strains A20, AC2013 and powder of low grade phosphorus rocks to potato can increase the potato output by 23.08% on average. It is thus shown that this technique is one of the effective methods in which low grade phosphorus rocks are utilized through the treatment of phosphate by microorganisms.

关 键 词：解磷菌 低品位磷矿 马铃薯 生物复合磷肥 

分 类 号：TQ442[化学工程—化学肥料工业]