Maximizing crop yield in alley crops |
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Authors: | J Vandermeer |
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Institution: | (1) Department of Ecological Agriculture, Wageningen Agricultural University, Haarweg 333, NL-6709 RZ Wageningen, The Netherlands;(2) Department of Biology, University of Michigan, Ann Arbor, MI 48109, USA |
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Abstract: | A simple graphical model is presented illustrating the balance between facilitation and competition necessary for maximizing
crop yield in alley cropping systems. Three functions are composed into the decision function: (1) the percent increase in
crop yield from facilitation resulting from prunings, (2) the amount of prunings resulting from different tree densities,
and (3) the percent reduction in crop yield from competition from trees. The resulting function illustrates how the balance
between facilitation and competition may provide a window of opportunity for the beneficial use of alley crops.
This revised version was published online in August 2006 with corrections to the Cover Date. |
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Keywords: | competition facilitation prunings |
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