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[PDF]Response of Gliricidia sepium to arbuscular mycorrhizal fungus inoculation and P fertilization in sterile and non-sterile soils

 

Author: Iniobong E. Okon 1*, O. Osonubi 2 and M. G. Solomon 3

 

Recieved 11 December 2006, accepted 20 June 2007

Abstract

 

A pot experiment was conducted to investigate the effects of arbuscular mycorrhizal fungus (AMF), Glomus deserticola, on the growth of Gliricidia sepium under P 0, 50 and 100 mg kg¹ levels of phosphorus fertilization. Inoculation with AMF increased dry matter yield at all levels of applied phosphorus in both sterile and non-sterile soils while P fertilization at 100 mg kg¹ soil level in conjunction with AMF inoculation increased the dry matter yield by 269.2 and 107.7% in sterile and non-sterile soils respectively. P fertilization increased arbuscular mycorrhizal fungi colonization but decreased mycorrhizal dependency. Colonization by indigenous AMF was, however, significantly (p<0.01) reduced at P 100 mg kg¹ soil fertilization. Foliar N, P and K yields were significantly (p<0.01) increased by AMF inoculation.

 

Key words: Gliricidia sepium, mycorrhiza, phosphorus, sterile and non-sterile soils.

[FULL text for subscribers]

Journal: Food, Agriculture & Environment (JFAE)
Online ISSN: 1459-0263
Year: 2007, Vol. 5, Issue 3&4, pages 430-433.
Publisher: WFL

 


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