Table 1.

Environmental Conditions

Racks	Low Density	High Density
	(Rack Layers: 7,8,9)	(Rack Layers: 10,11,12)
Density (plugs/m${}^2$)	624	849
Plugs per layer	104 × 2	144 × 2
Plants/Plug	3	3
Light cycle (hours/day)	16 and 20	16 and 20
Humidity (%)	65–70	65–70
Temperature (${}^{\circ }$C)	16 and 20	16 and 20
Light intensity ($\mathsf{\mu }$ mol/m${}^2$)	200–240	200–240
PH	5.5–6.0	5.5–6.0