共 20 条
- [1] *ASS OFF AGR CHEM, 1925, BOOK METH, P22
- [2] BAVER LD, 1928, J AM SOC AGRON, V20, P403
- [4] Frear W, 1918, J AGRIC RES, V15, P0059
- [6] MacINTIRE W. H., 1927, JOUR AMER SOC AGRON, V19, P483
- [7] The role of silica in counteracting magnesia-induced toxicity [J]. SOIL SCIENCE, 1925, 19 (05) : 331 - 341