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Simone da Costa Mello, Francis J. Pierce, Rachel Tonhati, Guilherme Silva Almeida, Durval Dourado Neto, and Kiran Pavuluri

tuberosum L.) require each of the nutrients in PH, often in significant quantities, and are commonly included in nutrient management programs. Polyhalite has a known potential as a fertilizer ( Barbarick, 1989 ; Fraps, 1932 ) but has had limited use

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Xing-Zheng Fu, Fei Xing, Li Cao, Chang-Pin Chun, Li-Li Ling, Cai-Lun Jiang, and Liang-Zhi Peng

application of Zn fertilizer has almost completely replaced soil application. The positive effects of Zn sprays on nutrient status, yield, and fruit quality have been observed in mandarin ( Razzaq et al., 2013 ; Srivastava and Singh, 2009 ), orange ( Boaretto

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Robert D. Wright, Brian E. Jackson, Jake F. Browder, and Joyce G. Latimer

space) as a commercial PL substrate ( Saunders et al., 2006 ). However, Wright and Browder (2005) demonstrated that additional fertilizer applications were required for PTS to maximize plant growth compared with a pine bark substrate. Gruda and

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Kayla R. Sanders and Jeffrey S. Beasley

As one of the most intensely managed crops ( King, 2001 ), turfgrass used for aesthetics or recreation requires routine fertilizer applications ( Rice and Horgan, 2011 ; Schwartz and Shuman, 2005 ) to maintain acceptable quality. However

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Carey Grable, Joshua Knight, and Dewayne L. Ingram

Proper plant nutrition remains one of the most important topics for growers of nursery container stock. While some substrates have a starter charge of fertilizer incorporated, the pine ( Pinus sp.) bark-based substrates commonly used by nursery

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Peter Alem, Paul A. Thomas, and Marc W. van Iersel

Fertilizer and irrigation are inseparable components of ornamental plant production. Nutrient availability to the roots is dependent on θ, because nutrient movement is driven by mass flow and diffusion ( Nye and Tinker, 1977 ). Greenhouse crops are

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Laura L. Van Eerd and Kelsey A. O'Reilly

Nitrogen is a critical nutrient for crop production, but it is difficult to optimize nitrogen (N) fertilizer applications because of the dynamic nature of plant-available N over the growing season. Nitrogen availability affects yield and quality of

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Javier Fernandez-Salvador, Bernadine C. Strik, and David R. Bryla

interested in targeting higher-value niche markets [ Organic Trade Association (OTA), 2013 ]. Guidelines for fertilizer and nutrient management in organic blackberry production are presently limited to overarching recommendations for nitrogen application

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Arnold W. Schumann

achieve this objective are 1) the collection of spatial data from pre-existing conditions in the field (e.g., remote sensing, canopy size, or yield measurement), 2) the application of precise fertilizer amounts to the crop when and where needed, and 3) the

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Jacob H. Shreckhise, James S. Owen Jr., and Alex X. Niemiera

Rising fertilizer prices and environmental implications of fertilizer runoff substantiates the need to select fertilization rates that optimize crop growth and nutrient use efficiency, yet minimize the effect on the surrounding ecosystem. From 2007