Root foraging elicits niche complementarity-dependent yield advantage in the ancient 'three sisters' (maize/bean/squash) polyculture.

@article{Zhang2014RootFE,
  title={Root foraging elicits niche complementarity-dependent yield advantage in the ancient 'three sisters' (maize/bean/squash) polyculture.},
  author={Chaochun Zhang and Johannes Auke Postma and Larry M York and Jonathan Paul Lynch},
  journal={Annals of botany},
  year={2014},
  volume={114 8},
  pages={1719-33}
}
BACKGROUND AND AIMS Since ancient times in the Americas, maize, bean and squash have been grown together in a polyculture known as the 'three sisters'. This polyculture and its maize/bean variant have greater yield than component monocultures on a land-equivalent basis. This study shows that below-ground niche complementarity may contribute to this yield advantage. METHODS Monocultures and polycultures of maize, bean and squash were grown in two seasons in field plots differing in nitrogen (N… CONTINUE READING
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