Mineral nutrition of Curcuma longa L. in bioreactors affects subsequent development of curcuminoids following transfer to the greenhouse

•We examine the subsequence effects of in vitro factors on greenhouse response.•The multi-factor design allowed us to optimize many factors at once.•Plant density and mineral interactions affected curcuminoids concentrations.•Low plant density and high P increase curcuminoids under low fertilizer treatment.•High plant density and low P increase curcuminoids under high fertilizer treatment.