共 38 条
[1]
Beaumont AB, 1931, J AGRIC RES, V43, P0559
[3]
BOKORNY T, 1917, BIOCHEM Z, V82, P539
[4]
BORNEMANN, 1928, FORTS LANDW, V3, P350
[5]
BREAL E, 1883, ANN AGRONOMIQUE, V19, P274
[6]
ENGEL H, 1930, Z PFLANZENNAHRUNG, V16, P226
[7]
ENGEL H, 1929, PLANTA, V7, P33
[8]
Fisher R., 1930, STAT METHODS RES WOR
[9]
Gibson T, 1930, J AGR SCI, V20, P549
[10]
HAGER G, 1930, Z PFLANZENERNAHR DUN, V17, P129