Answer:
polyculture; monoculture
Step-by-step explanation:
The polyculture showing greater productivity and stability as compared to monoculture because decrease occur in disease and no pesticides are used on the field which maintain stability. The disease that is present in the field can't affect the crop of different variety due to resistance of crop against this disease or may be of some other reason. Polyculture is recommended by many researchers in order to avoid pest or pathogen infestation to the crop which leads to better productivity.