Nitrogen Fertilizer Trials In Nigeria, SOMNET Long Term Soil Organic Matter Database
Entry ID: OAU.Nigeria

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Summary
Abstract: This experiment was started at a tropical location in 1971 on a site that was
originally undisturbed rainforest. The site was secondary forest
before the experiment began, and has been under its present use since
the initiation of the project. the soil is an Oxic Tropodolf, sandy
loam.

The experiment consists of the following land use and treatments:

Continuous cultivation with different crops ... View entire text
Related URL
Description: This url links to the GCTE-SOMNET home page where additional project
information and methodology can be obtained. This site is currently
in a datasharing phase of the network where actual data will become
available shortly, at different levels of accessibility. Please
follow this link for more information.
Geographic Coverage
Spatial coordinates   
  N: 7.09   S: 7.08   E: 6.0   W: 4.0
Min Depth: SURFACE Max Depth: 120CM

Temporal Coverage
Start Date: 1971-01-01
Quality a) Details of the plots

Width of smallest plot is 68.9 m
Length of smallest plot is 91.5 m
Slope: 0.5-2.0% . Shape: Uniform
Details of direction of cultivation: Parallel to long axis of plots.
Width of Discard Strip around plot: 2 rows from the edge (planting
distance varies for different crops).
... View entire text
Access Constraints none
Use Constraints Link to the following location to view data use policy of SOMNET members:
http://www.res.bbsrc.ac.uk/soils/somnet/members/policy.html
Data Set Progress
IN WORK
Data Center
Department of Soil Science, Faculty of Agriculture, Obafemi Awoldwo University Supplemental Info
Data Center URL: http://www.oauife.edu.ng/faculties/agric/

Data Center Personnel
Name: A. OLU OBI
Phone: 036-231480
Fax: 234-2-2410000
Contact Address:
Department of Soil Science,
Obafemi Awoldwo University,
Province or State: ILE-IFE
Country: NIGERIA
Personnel
Role: TECHNICAL CONTACT
Phone: 036-231480
Fax: 234-2-2410000
Contact Address:
Department of Soil Science,
Obafemi Awoldwo University,
Province or State: ILE-IFE
Country: NIGERIA
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Publications/References
Obi, A.O. (1976) Relative effects of different N-fertilizers on soil pH
and crop yield in a Western Nigerian soil. Nig. Agric. J. 13: 1.
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2000-01-11
Last DIF Revision Date: 2003-09-12
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