共 18 条
[1]
BAVER LD, 1940, SOIL PHYSICS
[5]
FRED EB, 1928, LABORATORY MANUAL GE
[6]
HANSEN HN, 1947, PHYTOPATHOLOGY, V37, P369
[7]
The accurate determination of nitrates in soils
[J].
INDUSTRIAL AND ENGINEERING CHEMISTRY,
1924, 16
:180-183
[9]
KELLEY WP, 1913, HAWAII AGR EXPT STA, V30