Effects of farmyard manures on root-knot populations on carrot

Abstract

Meloidogyne incognita eggs were inoculated to carrot grown in sandy loam soil alone and in soil amended with dry stable cow manure and dry poultry manure. All inoculated plants in the different treatments were galled to varying degrees. The most severe galling occurred in plants grown in soil/poultry manure ratio of 10 : 1. The least galling occurred in plants grown in soil/poultry manure ratio of 10 : 2 . Vegetative growth was, however, best in soils treated with poultry manure than those treated with cow manure. Carrot did not grow well in unamended sandy loam soil.