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    Broadly defined, intercropping of black walnut (Juglans nigra L.) refers to the production of one or more additional crops for food and/or fiber during all or part of the walnut rotation. lntercropping of walnut has been proposed for two main reasons: (1) to increase growth and/or quality of the walnut trees or (2) to provide an early financial return to help offset the costs associated with establishing the walnut plantation. Although a wide range of intercropping regimes can be proposed, few have been examined for their economic benefits or effects on walnut growth and quality. Needless to say, longterm walnut growth and quality should not be jeopardized for small, early economic returns from intercrops.

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    Van Sambeek, J.W. 1988. Site-improving intercrops for black walnut. Walnut Council Bulletin. 15(1): 2-6, 11.

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