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Manuel Martínez-Estévez, Nancy Ruiz-Lau, Rita Elena May-Uluac, Adolfo Guzmán-Antonio, Fausto Quintal-Tun and Ramón Pacheco-Arjona

Dynamics and distribution of K, Ca, Mg, P, and Na were studied in leaves of three cultivars of habanero pepper (Capsicum chinense Jacq.) at the time of transplanting and 8 and 14 weeks afterward. Most nutrients analyzed were mobilized from younger to mature leaves, except for P, which occurred in the opposite direction, probably due to its role in the synthesis of nucleic acids, which is more active in young tissues. Information about mineral distribution in leaves during the first 14 weeks after transplantation could be used to indicate plant nutritional status and fertilizer requirements.

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James L. Walworth, Scott A. White, Mary J. Comeau and Richard J. Heerema

( Payne and Sparks, 1982 ; Pond et al., 2006 ; Reuters and Robinson, 1997 ; Sparks, 1993 , 1994 ). Foliar application of Zn solutions directly onto tree foliage is the standard method for supplying this nutrient to pecan trees. Foliar Zn sprays can

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R.S. Mylavarapu

High-quality diagnostic soil, plant, and water-testing programs are required to achieve optimum agricultural production and to minimize negative environmental impacts. While soil fertility assessments and field-calibrated nutrient recommendations

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Amy L. Shober, Geoffrey C. Denny and Timothy K. Broschat

these BMPs on water consumption in and nutrient losses from urban landscapes have not been fully evaluated. Consequently, our objectives in this article are to 1) describe the current fertilizer and water use practices that are used by homeowners and

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Thomas A. Obreza and Jerry B. Sartain

Florida's citrus, vegetable, ornamental, and turf growers walk a fine line as they attempt to maintain economical production while simultaneously protecting the surrounding environment from excessive nutrients. In the face of increased fertilizer

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W.G. Harris, M. Chrysostome, T.A. Obreza and V.D. Nair

production while minimizing environmental impacts requires an understanding of how soil properties affect the fate of water and nutrients ( Muchovej et al., 2005 ; Simonne and Hochmuth, 2007 ; Stamps, 1996 ; Thompson et al., 2007 ). Soils strongly

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P. Gordon Braun, Keith D. Fuller, Kenneth McRae and Sherry A.E. Fillmore

windrows on a concrete pad and turned three times when the internal temperature of the pile exceeded 60 °C and water was added as needed. The compost nutrient composition was 2.7% nitrogen, 1.2% phosphorus, and 1.1% potassium with a C:N ratio of 14.2. It

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Andrew G. Ristvey, John D. Lea-Cox and David S. Ross

ornamental studies have provided total nutrient budgets for plant uptake and loss. Also, few studies have related N and P availability (from fertilization) to nutrient uptake and nutrient uptake efficiency by ornamental species. Little is also known about how

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Arnold W. Schumann

Precision agriculture (PA), as the name implies, is useful technology for growing and fertilizing horticultural crops more precisely or efficiently, thereby retaining water and nutrients in the root zone. Three techniques with which PA can help

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L.E. Parent and M. Dafir

Abbreviations: CDA, compositional data analysis; CND, compositional nutrient diagnosis; CVA, critical value approach; DRIS, diagnosis and recommendation integrated system. 1 Professor. 2 Graduate student. The research was supported by the Natural