Oregon State University. Extension Service; Mansour, N. S.; Mack, H. J. (Harry John), 1926-; Gardner, Ernest Hugh; Jackson, T. L. (Thomas Lloyd), 1922- (Corvallis : Oregon State University, Extension Service, 2000-01)
In the production of vegetable crops, good fertilizer usage is only one of the important management practices, including proper seeding, pest control,
adequate irrigation, and timely harvest. Because of the influence of ...