PODUCTIVITY OF GRAIN COWPEA (VIGNA UNGUICULATA (L.)WALP.) AS INFLUENCED BY SEASON GENOTYPE INSECT PEST MANAGMEENT AND CROPING SYSTEM IN SOUTH EASTER NIGER
ABSTRACT The first experiment involved nine improved cowpea genotypes and a local variety. The ten treatments were planted in two locations, namely the Research Farm of the College of Agriculture, Mgbakwu in Anambra State (060 17ʹN, 070 04ʹE; 83m asl) and the Experimental Farm of the Federal College of Agriculture, Ishiagu in Ebonyi State (050 58ʹN, 070 34ʹE; 197 m asl), over a period of two years and two seasons ...
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