The model must be properly calibrated for soil water dynamics and nitrogen decomposition and leaching before it can simulate plant production.
(The model; must be properly calibrated; T:for soil water dynamics and nitrogen decomposition and leaching; T:before it can simulate plant production) (it; can simulate; plant production)
The model it
must be properly calibrated can simulate
T:for soil water dynamics and nitrogen decomposition and leaching T:before it can simulate plant production
plant production