Open AccessOptimization of K-Fertilization and harvest age of four sweet potato (<i>Ipomoea Batatat</i>(L)(Lam) varieties for food tuber yield in a tropical ultisol
Author(s) -
P. A. Okwuowulu,
J. E. Asiegbu
Publication year - 2010
Publication title -
nigerian agricultural journal
Language(s) - English
Resource type - Journals
ISSN - 0300-368X
DOI - 10.4314/naj.v31i1.49345
Subject(s) - ipomoea , ultisol , human fertilization , yield (engineering) , horticulture , biology , agronomy , botany , ecology , soil water , materials science , metallurgy