2株真菌对土壤营养元素动态变化的影响  

Effect of two different fungi on nutrient dynamic changes in soil

作　　者：千淋兆 龚明波[2] 顾金刚[2] 李世贵[2] 汪强[1] 

机构地区：[1]河南农业大学资源与环境学院,河南郑州450002 [2]农业部农业微生物资源收集与保藏重点实验室/中国农业科学院农业资源与农业区划研究所,北京100081

出　　处：《中国土壤与肥料》2014年第5期86-89,共4页Soil and Fertilizer Sciences in China

基　　金：复合抗逆型微生物肥料研制与应用(2011BAD11B05)

摘　　要：采用真菌室内土培的方法,进行了2株真菌(草酸青霉菌和黑曲霉菌)对土壤pH值、有效磷、交换性钙、镁及有效性铁、锰、铜、锌的动态变化的研究。结果表明,添加草酸青霉菌和黑曲霉菌后,土壤的pH值显著降低,有效磷、交换性钙、镁和有效性铁、铜、锌含量显著增加,有效锰含量显著降低。当土壤中加入微生物所需大量营养元素后,微生物生长代谢能力增强,增加了土壤营养元素有效态含量。总体上,草酸青霉菌增加土壤营养元素有效性的能力高于黑曲霉菌。添加草酸青霉菌处理与对照相比,第21d时土壤有效磷含量增加35.89%,第12d时交换性镁、有效锌分别增加20.02%和37.4%,第15d时有效铁增加43.0%,在第18d时交换性钙、有效铜分别增加14.51%和46.9%,而第21d时,有效锰含量降低32.8%。The experimental design was conducted in the soil culture trial to study the effect of two fungus （Penicillium oxalicum I1 and Aspergillus niger HI） on the soil dynamic changes of pH, available phosphorus, exchangeable Ca and Mg and available Fe, Mn, Cu, Zn. The results showed that when the two fungi were applicated, soil pH decreased significantly; soil available phosphorus, exchangeable Ca and Mg and available Fe, Cu, Zn increased significantly; available Mn decreased obviously. On the whole, the Penicillium oxalicum＇s ability of increasing available soil nutrient elements was higher than AspergiUus niger＇s. The result demonstrated that the contents of available soil nutrient elements were changed remarkably when PeniciUium oxalicum was added. Compared with the control, the content of available phosphorous at 21th day increased 35.89%, the content of exchangeable magnesium, available Zn at 12th day increased 20. 02% and 37.4% respectively; the content of available Fe at 15th day increased 43.0% ; the content of exchangeable Ca and available Cu at 18th day increased 14. 51% and 46. 9%. However, the content of available Mn at 21th day decreased 32. 8% in the treatment with Penicillium oxalicum.

关 键 词：草酸青霉菌 黑曲霉菌 土壤营养元素 动态变化 

分 类 号：S158[农业科学—土壤学]