Commonly a relative yield advantage (‘overyield’) is obtained from a polyculture system versus a monoculture system.
|Crop||Annual yields in kgs.(416 sq.mt. plot)||Equivalent yields (kgs. per hectare)|
This production was accomplished without the use of any insecticides, hybrid seeds, irrigation or mechanical farm implements and only a small amount of chicken manure was used. Compared with the average production of small-scale rainfed rice/mungbean cultivation (1.3 tons/ha for traditional varieties; 1.4 tons/ha for hybrid cultivars) this is very high. Although these figures are not totally comparable they give a clear indication that polyculture greatly out produces its monocultural counterparts, even those with ‘Green Revolution’ inputs. Most cereal-legume based polycultures and agroforestry systems found throughout the tropics are examples of ‘overyielding’ polycultures.
Source : ‘Return to the Good Earth’, Third World Network