Oregon State University. Extension Service; Gardner, Ernest Hugh; Jackson, T. L. (Thomas Lloyd), 1922-; Wilcox, B. G.; Fitch, L.; Johnson, M.; Pumphrey, F. V. (Floyd Vance) (Corvallis : Oregon State University, Extension Service, 1983-07)
Good management practices are essential if optimum fertilizer responses are to be realized. These practices include adequate irrigation, use of recommended varieties, selection of adapted soils, weed control, disease and ...