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Library ResourceJournal Articles & BooksDecember, 1998Pakistan
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Library ResourceJournal Articles & BooksDecember, 1998
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Library ResourceJournal Articles & BooksDecember, 1998
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Library ResourceJournal Articles & BooksDecember, 1998
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Library ResourceJournal Articles & BooksDecember, 1998
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Library ResourceJournal Articles & BooksDecember, 1998Mexico
Four environments with contrasting potential for agricultural productivity and infrastructure development were identified in Guanajuato State, Mexico, to test hypotheses about the relationship of maize biological diversity to the region's potential for agricultural productivity and infrastructure development. Samples of all types of maize grown by a random sample of farmers were collected from each environment. The maize samples were classified by race, racial mixture or type of "creolized" or improved variety.
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Library ResourceJournal Articles & BooksJune, 1998Colombia
La Mojana region is located in the North Coast of Colombia. It is part of the alluvial extensive plain, where the Cauca, San Jorge and Magdalena rivers flow together. The region is representative of the tropical humid forest, and is affected by annual flooding cycles. The predominant soils are inceptisols, entisols, oxisols and vertisols. Human activity has been reported since pre-Columbiam times, with the Zenu culture.
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Library ResourcePolicy Papers & BriefsDecember, 1998
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Library ResourcePolicy Papers & BriefsDecember, 1998
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Library ResourcePolicy Papers & BriefsDecember, 1998
A survey of 459 ranchers, 56 local decision makers, and 50 public land managers (565 total) was conducted to evaluate managerial, institutional, and social factors that may affect the rate and extent of implementation of various leafy spurge (Euphorbia esula L.) controls. The study focused on a five-county region in Montana, North Dakota, South Dakota, and Wyoming. The questionnaire focused on weed management in general and specifically on the perceptions and attitudes of ranchers, land managers, and local decision makers who have been directly and indirectly affected by leafy spurge.
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