Density and Diversity of Weed Species in Alleys of Gliricidia sepium- Based Hedgerow Inter-Cropping System.
Journal Title: IOSR Journal of Agriculture and Veterinary Science (IOSR-JAVS) - Year 2018, Vol 11, Issue 12
Abstract
This study was carried out to examine the impact of Gliricidia sepium- based hedgerow intercropping system on density and diversity of weed species, a quadrant of 0.5m × 0.5m was thrown on the plot at random, the weeds under the quadrant was identified and counted (i.e. density), this procedure was carried out four times at each of the two locations, the resulting samples were oven dried at temperature of 60˚C to get constant moisture content level, thereafter the biomass of each samples was known,student T-test was be used to compare the significant difference between densities of weed species at the agroforestry plot and bush fallow plot, and Shannon wienner diversity index was used to determine the species diversity in the two plots, a total numbers of thirty eight individuals belonging to 7 families was identified in the total of 1m2 of Bushfallow plot surveyed,having diversity index is 1.55, and the total dry weight is 63.151g (biomass), also a total numbers of fifty nine individuals belonging to 6 families that was identified in the 1 m2 Agroforestry plot surveyed, having diversity index is 1.66, and the total dry weight is 140.46g (biomass), the study reveals a higher biomass of weed identified on the agroforestry plot when compared to the Bushfallow plot, the number of individuals found in the agroforestry plot is higher than that of the bushfallow plot, accounting for the high density of weeds for the agroforestry plot, also the agroforestry plot had more weed species diversity when compared to the bushfallow plot as shown by theshannonweiner diversity index, this indicates no impact of Gliricidia sepium tree species with temporal sequence of hedgerow inter-cropping system on the reduction of density and diversity of weed species found on the agroforestry plot when compared to the Bushfallow plot.
Authors and Affiliations
Olorunfemi T. J, Adesuyi F. E, Akinbi O. J, Agbeje A. M, Oke D. O
Keywords
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- EP ID EP428751
- DOI 10.9790/2380-1112027982.
- Views 103
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