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林业科学 ›› 2005, Vol. 41 ›› Issue (4): 194-198.doi: 10.11707/j.1001-7488.20050433

• 研究简报 • 上一篇    下一篇

细菌肥料菌株对无效磷的转化利用

焦如珍 杨承栋 孙启武   

  1. 中国林业科学研究院林业研究所,北京100091
  • 收稿日期:2003-07-15 修回日期:1900-01-01 出版日期:2005-07-25 发布日期:2005-07-25

Transformation and Availability of Unavailable-Phosphorus by the Strains of Bacterial Manure

Jiao Ruzhen,Yang Chengdong,Sun Qiwu   

  1. Research Institute of Forestry,CAF Beijing 100091
  • Received:2003-07-15 Revised:1900-01-01 Online:2005-07-25 Published:2005-07-25

关键词: 细菌肥料, 无机磷, 有机磷, 磷细菌, 有效磷, 磷的转化强度

Abstract:

Microorganism impacts greatly on the translation and the availability of phosphorus in the soil. Inoculating the medium with Ca3(PO4)2 and lecithin as the only P source respectively with the strains of bacterial fertilizer in our laboratory, 9 strains of phosphorus-dissolving bacteria were selected. The contents of available phosphorus increased from 33.082 mg·kg-1 to 344.820 mg·kg-1 in the medium withCa3(PO4)2 and increased from 0.870 mg·kg-1 to 43.123 mg·kg-1 in the medium with lecithin. The pH of all cultures of the medium with Ca3(PO4)2 were lower than that of CK. While in cultures of the medium with lecithin, the pH values of 7 strain cultures were lower than that of CK and the other 2 strains were higher. The pH varied in 5.0~7.5.

Key words: bacterial manure, inorganic phosphorus, organic phosphorus, phosphorus-dissolving bacteria, available phosphate, P-release