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Interspecific Competition in a Pecan-cotton Alley-cropping System in the Southern United States: Is Light the Limiting Factor?

  • D. S. Zamora
  • S. Jose
  • P. K. R. Nair
  • J. W. Jones
  • B. J. Brecke
  • C. L. Ramsey
Part of the Advances in Agroforestry book series (ADAG, volume 4)

The manner in which light is intercepted by crop canopies and converted to structural dry matter can significantly affect primary production at a given site. A number of authors have investigated plant performance under different environmental conditions, including different levels of light, in alley cropping and similar agroforestry systems (Azam-ali et al. 1990; Monteith et al. 1991; Rosenthal and Gerik, 1991; Heitholt et al. 1992; Chirko et al. 1996; Gillespie et al. 2000; Jose et al. 2000). These studies have revealed strong linear relationships between photosynthetically active radiation (PAR, 400–700 nm) and dry matter production.

Keywords

Photosynthetically Active Radiation Aboveground Biomass Leaf Area Index Agroforestry System Interspecific Competition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science + Business Media B.V 2008

Authors and Affiliations

  • D. S. Zamora
    • 1
  • S. Jose
    • 2
  • P. K. R. Nair
    • 2
  • J. W. Jones
    • 3
  • B. J. Brecke
    • 4
  • C. L. Ramsey
    • 5
  1. 1.University of Minnesota Extension
  2. 2.School of Forest Resources and ConservationUniversity of FloridaGainesville
  3. 3.Department of Biological and Agricultural EngineeringUniversity of FloridaGainesville
  4. 4.Department of AgronomyUniversity of FloridaMilton
  5. 5.USDA-APHISFort Collins

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