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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2016.5(10): 135-149
DOI: http://dx.doi.org/10.20546/ijcmas.2016.510.016


Effect of Rhizobium and Intercropping Systems on Soil Nutrients and Biological Nitrogen Fixation as Influenced by Legumes (Phaseolus vulgaris and Dolichos lablab)
Prosper I. Massawel*, Kelvin M. Mtei2, Linus K. Munishi1 and Patrick A. Ndakidemi1
1Department of Sustainable Agriculture and Biodiversity Management, The Nelson Mandela African Institution of Science and Technology, P.O. Box 447, Arusha, Tanzania
2Department of Water and Environmental Sciences, The Nelson Mandela African Institution of Science and Technology, P.O. Box 447, Arusha, Tanzania
*Corresponding author
Abstract:

The study was conducted to assess the effect of Rhizobium inoculation and intercropping systems on soil nutrients improvement and biological nitrogen fixation as influenced by two legumes (Phaseolus vulgaris and Dolichos lablab). To achieve this aim, the field experiments were conducted at Selian Agricultural Research Institute (SARI) for two seasons. The fertility status of the soils and their suitability for cereal/ legumes production at the experimental site was evaluated based on technical indicators of soil fertility. From the soil analytical results, the major soil fertility limitations included low soil organic matter, low total nitrogen and medium available phosphorus for season 1 hence the soils were categorized as of low fertility status and moderately suitable for cereal/ legumes production. This was opposite in season 2 due to legumes biological nitrogen fixation and incorporation of legumes crop residues into the soil as the results of the first season harvest. A randomized complete block design was used in a 3-factorial arrangement with two levels of Rhizobium (with and without rhizobia), 2 legumes (P. vulgaris and D. lablab) and 5 cropping systems. The results showed that Rhizobium inoculation was significantly (P ≤ 0.001) on nodules number per plant; nodules weight (g) and biological nitrogen fixation (kg N ha-1) in season 1 and 2. Based on these findings, it is thus recommended that, Rhizobium inoculation is the most profitable biofertilizer for soil fertility restoration.


Keywords: Biological nitrogen fixation, Intercropping systems, Legumes, Soil nutrients, Rhizobium.
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How to cite this article:

Prosper I. Massawe, Kelvin M. Mtei, Linus K. Munishi and Patrick A. Ndakidemi. 2016. Effect of Rhizobium and Intercropping Systems on Soil Nutrients and Biological Nitrogen Fixation as Influenced by Legumes (Phaseolus vulgaris and Dolichos lablab).Int.J.Curr.Microbiol.App.Sci. 5(10): 135-149. doi: http://dx.doi.org/10.20546/ijcmas.2016.510.016