TY - JOUR
T1 - Nitrogen transformations in an aerobic soil as determined by a 15NH4+ dilution technique
AU - Nishio, T.
AU - Kanamori, T.
AU - Fujimoto, T.
PY - 1985
Y1 - 1985
N2 - The rates of mineralization, immobilization and oxidation of N in an aerobic soil, an Andosol Brown, from the farm of the Hokkaido National Agricultural Experiment Station were simultaneously determined in the presence and absence of acetylene using a 15NH+4 dilution technique. C2H2 inhibited nitrification, but did not directly affect mineralization and immobilization. Denitrification and immobilization of NO3--N were negligible. Mineralization proceeded much faster than did immobilization. Net mineralization accounted for 22-59% of gross mineralization. The rates of N transformation at a water content of 60% were higher than those at 40%. The Q10 values for mineralization, immobilization and nitrification were estimated, between 11° and 29°C, to be 2.0, 1.9 and 1.7, respectively.
AB - The rates of mineralization, immobilization and oxidation of N in an aerobic soil, an Andosol Brown, from the farm of the Hokkaido National Agricultural Experiment Station were simultaneously determined in the presence and absence of acetylene using a 15NH+4 dilution technique. C2H2 inhibited nitrification, but did not directly affect mineralization and immobilization. Denitrification and immobilization of NO3--N were negligible. Mineralization proceeded much faster than did immobilization. Net mineralization accounted for 22-59% of gross mineralization. The rates of N transformation at a water content of 60% were higher than those at 40%. The Q10 values for mineralization, immobilization and nitrification were estimated, between 11° and 29°C, to be 2.0, 1.9 and 1.7, respectively.
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U2 - 10.1016/0038-0717(85)90106-3
DO - 10.1016/0038-0717(85)90106-3
M3 - Article
AN - SCOPUS:0022230520
VL - 17
SP - 149
EP - 154
JO - Soil Biology and Biochemistry
JF - Soil Biology and Biochemistry
SN - 0038-0717
IS - 2
ER -