M. O.
Adigun1*, O. A. Babalola2, I. O. Abiola3, O.O
Afolabi1 and N. E. Etukudoh4
1*Department of Biological
Sciences, Crawford University, Faith City, Igbesa, Ogun State, 2Department of Soil Science
and Land Management, Federal University of Agriculture, Abeokuta, Nigeria
3Crop
Production Technology Department, Federal College of Forestry, Jericho, Ibadan,
Nigeria
4Department
of Soil Science, Rivers State University of Science and Technology, Port
Harcourt,
Email: micadigun@crawforduniversity.edu.ng
ABSTRACT
This
study was carried out to examine the dynamics of organic carbon and phosphorus
of the soil shown to soybean. The experiment was conducted at the Federal University of Agriculture, Abeokuta,
Nigeria. The experiment was laid out in a Randomized Complete Block Design
(RCBD) with three treatments to study the effect of poultry manure at 0, 5, 10
tons/ha, phosphorus source chemical fertilizer (SSP, mycorrhizal) and Bradyrhizobium on the growth and yield
of soybean (Glycine max). Treatment
was replicated three times. Observations
was taken at 4th, 6th, 8th, 10th, 12th and 14th week after planting (WAP) on
the Agronomic data of soybean plant. Also the chemical properties of the soil
were taken before and at harvesting. Significant difference between the
treatments in some growth and yield parameters of soybean were obtained. The
result shows that there were different responses of the crop as a result of
various treatments. Crops inoculated with treatment performed better in plant
height, leaf area, stem girth for growth parameters and in soil minerals
(Organic C and available P), while significant difference were observed in
yield component such as the weight of 100 seed/hectare. The study concludes that
soybean growth and soil obtained minerals was enhanced by the interactive
effect of treatments which include the poultry manure, Bradyrhizobium and the phosphorus source (SSP, Mycorrhizal). That
is, 5 tons/ha of poultry manure with Mycorrhizal produced the highest yield of
soybean within the week interval.
Keywords: Soybean, Mycorrhizal, Bradyrhizobium, Single super phosphate,
Poultry manure.
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