Influence of direction and distance from trees on wheat yield and photosynthetic photon flux density (Q p ) in a Paulownia and wheat intercropping system

Author: Chirko C.P.   Gold M.A.   Nguyen P.V.   J. P.J.  

Publisher: Elsevier

ISSN: 0378-1127

Source: Forest Ecology and Management, Vol.83, Iss.3, 1996-07, pp. : 171-180

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Abstract