共 22 条
[2]
AULAKH MS, 1982, 1982 ANN M AM SOC AG, P183
[3]
AULAKH MS, 1983, CAN J SOIL SCI, V63
[4]
AULAKH MS, 1983, 1983 ANN M AM SOC AG, P152
[7]
CHATARPAUL L, 1980, 80TH ANN M AM SOC MI
[9]
MYERS R. J. K., 1971, Nitrogen-15 in soil-plant studies. Vienna, Austria, IAEA., P55
[10]
PAUL EA, 1978, ENV BIOGEOCHEMISTRY, V2, P525