Complementarity in root architecture for nutrient uptake in ancient maize/bean and maize/bean/squash polycultures
Author(s) -
Johannes A. Postma,
Jonathan P. Lynch
Publication year - 2012
Publication title -
annals of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.567
H-Index - 176
eISSN - 1095-8290
pISSN - 0305-7364
DOI - 10.1093/aob/mcs082
Subject(s) - biology , squash , agronomy , nutrient , complementarity (molecular biology) , botany , ecology , genetics
During their domestication, maize, bean and squash evolved in polycultures grown by small-scale farmers in the Americas. Polycultures often overyield on low-fertility soils, which are a primary production constraint in low-input agriculture. We hypothesized that root architectural differences among these crops causes niche complementarity and thereby greater nutrient acquisition than corresponding monocultures.
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