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Warren C. Stiles

113 Workshop 18 (Abstr. 735–738) Time and Method of Nutrient Application in Fruit Orchards on Nutrient Distribution in the Soil and Tree Performance

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G.H. Neilsen, D. Neilsen, and F. Peryea

113 Workshop 18 (Abstr. 735–738) Time and Method of Nutrient Application in Fruit Orchards on Nutrient Distribution in the Soil and Tree Performance

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Joan R. Davenport, Robert G. Stevens, Kelly M. Whitley, and Tanya Winkler

Water movement in regulated deficit irrigated wine grape vineyards in the inland Pacific Northwest has been shown to be restricted to a fairly small zone and often soil moisture status is very low ( Davenport et al., 2008 ). Because plant nutrient

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Damon E. Abdi and R. Thomas Fernandez

deleterious quantities of nutrients and pesticides to surface waters or on-site retention ponds ( Lu et al., 2006 ; Warsaw et al., 2009b , 2012 ). Efforts to reduce the movement of pesticides can be realized through improved irrigation practices, nursery

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Suphasuk Pradubsuk and Joan R. Davenport

nutrient movement between various plant parts was accomplished by calculating the content of each macronutrient within each plant part (dry weight × concentration) divided by the number of days between sampling dates. Table 2. Significance

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Tyler C. Hoskins, James S. Owen Jr., Jeb S. Fields, James E. Altland, Zachary M. Easton, and Alex X. Niemiera

-holding capacity of pine bark-based substrates, frequent irrigation is required to supply adequate water to the crop. During irrigation, the unwanted leaching of water and applied mineral nutrients is a common occurrence. An understanding of how dissolved mineral

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Michael D. Dukes, Lincoln Zotarelli, and Kelly T. Morgan

/or under-irrigation, which can lead to yield reduction resulting from excessive nutrient leaching or plant water stress. Fig. 6. Photograph of lateral movement of irrigated water for pepper crop in a sandy soil after 1 h of irrigation. Fig. 7. Photograph of

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Rhuanito Soranz Ferrarezi, Marc W. van Iersel, and Roberto Testezlaf

groundwater with nutrients or pesticide residues ( Dumroese et al., 2006 ). Governmental regulations concerning nutrient solution disposal are becoming increasingly strict around the world. Conservative irrigation practices can be implemented to help growers

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Tyler C. Hoskins, James S. Owen Jr., and Alex X. Niemiera

of irrigation affect the water movement. Applying water at a high rate to a dry substrate may lead to unnecessary leaching of water and nutrients. Therefore, additional research is warranted to determine the optimal balance between MC and water

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Kelly T. Morgan, Lincoln Zotarelli, and Michael D. Dukes

thus water-holding capacities than the soils described thus far; however, irrigation management remains key to optimum productivity. Nutrient and agricultural chemical movement into surface water and groundwater has become a greater concern in Florida