Accurate determination of soil nitrates by phenol disulfonic acid method

[1] ALLEN ER, 1915, IND ENG CHEM, V6, P521

[2] ALLEN ER, 1915, OHIO AGR EXPT STATIO, V7

[3] ARNY HV, 1916, IND ENG CHEM, V8, P312

[4] CAMPBELL JA, 1911, J AM CHEM SOC, V33, P1113

[5] CHAMOT P, 1911, J AM CHEM SOC, V33, P366

[6] CONNER SD, 1917, J AM SOC AGRON, V9, P299

[7] GERICKE WF, 1917, IND ENG CHEM, V9, P585

[8] Hilgard E.W., 1906, SOILS

[9] HILL HH, 1911, REPORT VIRGINIA POLY, P133

[10] LIPMAN CB, 1912, U CAL PUB AGR SCI, V1, P21

[1] ALLEN ER, 1915, IND ENG CHEM, V6, P521

[2] ALLEN ER, 1915, OHIO AGR EXPT STATIO, V7

[3] ARNY HV, 1916, IND ENG CHEM, V8, P312

[4] CAMPBELL JA, 1911, J AM CHEM SOC, V33, P1113

[5] CHAMOT P, 1911, J AM CHEM SOC, V33, P366

[6] CONNER SD, 1917, J AM SOC AGRON, V9, P299

[7] GERICKE WF, 1917, IND ENG CHEM, V9, P585

[8] Hilgard E.W., 1906, SOILS

[9] HILL HH, 1911, REPORT VIRGINIA POLY, P133

[10] LIPMAN CB, 1912, U CAL PUB AGR SCI, V1, P21