Availability studies on magnesium in magnesic limestones, serpentine, olivine, and magnesium ammonium phosphate G. F. LeaJ. B. Smith OriginalPaper Pages: 4 - 9
Effects of bordeaux mixture and pyrethrum dust on leafhopper control and yields of potatoes E. O. MaderF. M. Blodgett OriginalPaper Pages: 10 - 15
Recent developments in potato breeding: review of literature C. F. Clark OriginalPaper Pages: 16 - 26