Co-Authors:
Hadas, Aviva, ARO, Israel, MN, USA, ARO, Israel, MN, USA
Molina, J.A.E., ARO, Israel, MN, USA, ARO, Israel, MN, USA
Feigenbaum, Sala, ARO, Israel, MN, USA, ARO, Israel, MN, USA
Clapp, C.E., ARO, Israel, MN, USA, ARO, Israel, MN, USA
Abstract:
The computer model NCSOIL computes the dynamics of C and N transformations in soil. In its original version, the microbial biomass assimilated organic N from the decay of organic pools, and inorganic N was immobilized only when decomposed organics were deficient in N with respect to biomass needs for growth (NCSOIL-direct version). A new version was presented in which it was assumed that microbial biomass immobilized N only from the inorganic pool, while the decay of organic N always resulted in N mineralization (NCSOIL-MIT version). NCSOIL-MIT was calibrated and tested for the incorporation of inorganic **1**5N in the organic soil N against experimental data and compared with the direct version.