Journal of Applied Biosciences [ISSN 1997 – 5902] (J. Appl Biosci..)
Volume 81: 7253-7262 Published September 30, 2014
Study of some characteristics of wood ramial fragmented (BRF) of Guiera senegalensis JF Gmel and Piliostigma reticulatum (DC) Hochst and their influence on chemical and biological properties of tropical ferruginous soils of the Peanut Basin, Senegal.
Marième Fall BA12 * Gilles COLINET3, Samba Ndiaye samba4 Arona, Emmanuel BASSENE1
1 Laboratory of Pharmacognosy and Botany, UCAD, Dakar, Senegal
2 National Research Centre for Forestry (ISRA / NWRC), Hann, Dakar
3Laboratoire Geo-Soil Science, Gembloux Agro Bio Tech, ULG, Belgium
4Université Thies-Higher National School of Agriculture, ENSA, Thies, Senegal
* Corresponding author, E-mail: bfma09@yahoo.fr Original Submitted in August 2014 on 1st Published online at www.m. 30th September 2014 we elewa.org http://dx.doi.org/10.4314/jab.v81i1.5
SUMMARY
Objective: This study, conducted in the laboratory, was designed to evaluate the potential use of wood ramial fragmented (BRF) of Guiera senegalensis JF Gmel (G. senegalensis) and Piliostigma reticulatum (DC) Hochst (P. reticulatum) as organic amendments in improving the fertility of tropical ferruginous soils the Groundnut Basin of Senegal.
Methodology and Results: Two doses (0.7 g and 1.4 g) of each type of BRF were mixed with 70 g of soil and compared to an unamended in a completely randomized factorial design with three replicates witness. The mixtures were incubated at 28 ° C for 9 weeks. Measurements made after incubation showed a neutral pH, an increase in total C, soluble C and microbial C and a strong positive correlation between soluble C and microbial as with G. senegalensis (r = 0.90, p = 0, 0008) with P. reticulatum (r = 0.93, p = 0.0002). Immobilization of N was observed with P. reticulatum BRF unlike those of G. senegalensis.
Conclusion and Application of Results: BRF G. senegalensis and P. reticulatum are a good source of organic matter. They can improve the chemical and biological properties of soils. Their use in the sustainable management of the fertility of tropical ferruginous soils could be recommended. However, studies on the long term should be conducted to decide on the duration and involvement of polyphenols in N immobilization observed with BRF P. reticulatum.
Keywords:. RCW decomposition Guiera senegalensis Piliostigma reticulatum, ferruginous soil properties, Groundnut Basin, Senegal
Study of Some Characteristics of ramial chipped woods (RCW) of Guiera senegalensis JF Gmel and Piliostigma reticulatum (DC) Hochst and Their impact on chemical and biological properties of tropical ferruginous soils of the groundnut basin, Senegal.
ABSTRACT
Objective: This study, done in laboratory, avocation for Assessment to the potential use of ramial chipped woods (RCW) of Guiera senegalensis JF Gmel (G. senegalensis) and Piliostigma reticulatum (DC) Hochst (P. reticulatum) as organic amendments for fertility soils improvement of tropical ferruginous soils in the groundnut basin, Senegal.
Methodology and results: Two doses (0.7 g and 1.4 g) of Each Type of RCW Were mixed to 70 g of soil and Compared with a control in a randomized factorial design with completely Call three replicates. The mixtures Were incubated at 28 ° C Pendant 9 weeks. Measurements After incubation-have shown a neutral pH, total higher, and soluble microbial C and a strong correlation betweens soluble C and microbial C for G. senegalensis (r = 0.90, p = 0.0008) and P. reticulatum (r = 0.93, p = 0.0002). N immobilization WAS Noticed with P. reticulatum by RCW RCW not with G. senegalensis.
Conclusion and implementation of results: RCW of G. senegalensis and P. reticulatum are good sources of organic matter.They can help Improve soil chemical properties and are therefore in the Useful sustainable management of degraded soils of fertility of the groundnut basin. However, studies on the long term Should Be Conducted to determines the duration and the involvement of polyphenols in N immobilization Observed with P. reticulatum RCW.
Keywords: RWC, decomposition, Guiera senegalensis Piliostigma reticulatum, tropical ferruginous soils, properties, groundnut basin.
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