[6]
Changes in soil organic matter with cropping as measured by organic carbon fractions and 13 C natural isotope abundance[J] . Rod D. B. Lefroy,Graeme J. Blair,Wayne M. Strong.Plant and Soil . 1993 (1)
[6]
Changes in soil organic matter with cropping as measured by organic carbon fractions and 13 C natural isotope abundance[J] . Rod D. B. Lefroy,Graeme J. Blair,Wayne M. Strong.Plant and Soil . 1993 (1)