共 13 条
- [1] CHAMBERLAIN R, 1933, 7 ANN REP AGR RES I, P28
- [2] HALL AD, SOIL, P73
- [3] Johnson T, 1925, PHYTOPATHOLOGY, V15, P797
- [4] LEUKEL RW, 1933, USDA TECH B, V341
- [5] MACKAY R, 1933, J DEP AGR IROSH FREE, V32, P234
- [7] O'BRIEN D. G., 1932, SCOTTISH JOUR AGRIC, V15, P406
- [8] OBRIEN DG, 1930, J AGR, V13, P272
- [9] SMITH KM, 1931, AGR ENTOMOLOGY