plant population (plant/m2) variable

[moniquebranco]

Hi @daquinterop

I did not find the "plant population, plant/m2 (PLTPOP)" variable in the management module - self.planting_details. This information is mandatory in the DSSAT GUI interface, as "Potential dry matter production (PCARB)" is calculated from this variable: PCARB = IPAR RUE PCO2 IPAR = PAR/PLTPOP (1.0 - EXP(-LIFAC LAI)) LIFAC = 1.5 - 0.768 ((ROWSPC 0.01)*2 PLTPOP)**0.1

How is the calculation done? In my case, I need to add this variable, because my framework depend on it. How could I compute it?

Thank you! Monique

[moniquebranco]

I forgot to say that I am working with ceres-maize. Is the PPOP the same as the PLTPOP?

[daquinterop]

Hi Monique. Exactly, PPOP is the plant population at seedling, and PPOE is the plant population at emergence.