共 25 条
[2]
Allison L. E., 1942, JOUR AMER SOC AGRON, V34, P616
[3]
BOWER C. A., 1940, INDUST AND ENGINEER CHEM ANALYT ED, V12, P411, DOI 10.1021/ac50147a012
[5]
BYERS HG, 1938, USDA YB AGR, V948
[6]
CRAIG N, 1934, EMPIRE J EXP AGR, V2, P349
[7]
CROWTHER EM, 1932, 2ND P INT C SOIL SCI, V5, P15
[10]
HOSKING JS, 1940, COUNCIL SCI IND RES, V13, P206