Oregon State University. Extension Service; Jackson, T. L. (Thomas Lloyd), 1922-; Gardner, Ernest Hugh; Mansour, N. S.; Mack, H. J. (Harry John), 1926- (Corvallis : Oregon State University, Extension Service, 1992-08)
Good management practices are essential if optimum fertilizer responses are to be realized. The practices include use of recommended onion varieties, selection of adapted soils, weed control, disease and insect control, ...