Potato yields as related to nitrate levels in petioles and soils E. C. DollD. R. ChristensonA. R. Wolcott OriginalPaper Pages: 105 - 112
Effect of specific gravity and seed maturity on potato yields in peat soil E. F. Maas OriginalPaper Pages: 113 - 115
Production of certified seed potatoes by varieties—1970 Orrin C. Turnquist News and Reviews Pages: 129 - 132
Officials and agencies in charge of potato seed certification (As of December, 1970) News and Reviews Pages: 135 - 136
Genetics of the potato, Solanum tuberosum. H. W. Howard C. E. Cunningham News and Reviews Pages: 137 - 137