Comparison of the effects of carbofuran and poultry manure in the management of <i>Meloidogyne incognita</i> race 2 on the growth and yield of root-knot infected cowpea <i>Vigna unguiculata</i> (L., walps)

Abstract

Pot experiment on the comparison of the nematicidal potentials of poultry manure with carbofuran on M. incognita infected cowpea was carried out to determine whether poultry manure can be substituted for carbofuran. Carbofuran and poultry manure were applied at doses of 2 kg active ingredient (a.i.)/ha and 2t/ha respectively, singly and in combination to potted cowpea plants arranged in Completely Randomized Design, but earlier inoculated with 5,000 eggs of M. incognita at two weeks after planting (except uninoculated control). Treated plants with carbofuran showed best growth, highest yield with nematode control; followed by poultry manure treated plants. The combination of carbofuran and poultry manure were not as effective as application of either carbofuran or poultry manure solely, but showed better growth and yield (P < 0.05) than untreated
inoculated cowpea plants. In all carbofuran proved superior to poultry manure in the management of M incognita infected cowpea, but poultry manure can still be used due to its environmentfriendliness and easy availability; also ability to alleviate the impact of the infection on the growth and yield of cowpea than untreated infected plant.

Keywords: Application, control, inoculation, substitution

Journal of Agriculture and Social Research Vol. 8 (1) 2008: pp. 13-17