共 13 条
- [1] BRADLEY R. H., 1949, AMER POTATO JOUR, V26, P279, DOI 10.1007/BF02884594
- [3] ELLISON JH, 1949, P AM SOC HORTIC SCI, V54, P447
- [4] KNOTT J. E., 1950, AGRIC CHEM, V5, P53
- [5] NAYLOR AW, 1949, DEC AAAS M
- [7] Sell Harold M., 1946, JOUR AGRIC RES, V73, P319
- [8] SMITH O, 1946, DOWN EARTH, V2, P5
- [9] Thomas John E., 1944, PHYTOPATH, V34, P1012