Mohan KumarBalakrishna Pillai, BPrabhakaran, P VKAU2019-07-262019-07-261979Agricultural Research Journal of Kerala, 17(2), 289-292.http://krishikosh.egranth.ac.in/handle/1/5810117137ennullEffect of levels of N, P & K on the uptake of nutrients and grain yield in cowpeaArticle