共 24 条
- [1] BRENCHLEY WE, 1908, J AGR SCI, V3, P195
- [2] DUSTMAN RB, 1931, J AM SOC AGRON, V23, P190
- [3] ECKERSON SH, 1917, WASHINGTON AGR EXP S, V139
- [4] HOPPER TH, 1930, N DAKOTA AGR EXP STA, V236
- [5] LAWES JB, 1884, COMPOSTITION ASH WHE
- [6] LYON TL, 1905, USDA BUR PLANT IND, V78
- [7] MALHOTRA R. C., 1931, JOUR INDIAN CHEM SOC, V8, P51
- [8] MALHOTRA R. C., 1930, JOUR BIOCHEM TOKYO, V12, P341
- [9] MALHOTRA RAM CHANDAR, 1930, JOUR INDIAN BOT SOC, V9, P218
- [10] MALHOTRA RC, 1930, J IND ENG CHEM ANAL, V2, P398