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T.K. Hartz and R.F. Smith

Research on the use of controlled-release fertilizers (CRF) in California vegetable production has been conducted for more than 30 years. Since Lorenz et al. (1972) evaluated CRF for potato ( Solanum tuberosum ), tomato ( Solanum lycopersicum

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Martin P.N. Gent and Michael R. Short

Reuse of solution after it has once been used to water plants can prevent groundwater pollution from the use of fertilizer in intensive agricultural production. The smaller the volume of nutrient solution discarded, the less likelihood of excess

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Luther C. Carson, Monica Ozores-Hampton, Kelly T. Morgan, and Jerry B. Sartain

Restoration Act of 1999 ( Bartnick et al., 2005 ). Controlled-release fertilizers are soluble fertilizer (SF) coated in polymer, resin, or sulfur-coated urea in a polymer coating ( Trenkel, 2010 ). Field measurements of CRF N release have been made by

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Sueyde Fernandes de Oliveira Braghin, Simone C. Mello, Jéssika Angelotti-Mendonça, Keigo Minami, and Yuncong C. Li

leaf shape and color range. In addition, croton can be cultivated as landscape plants or grown in pots. Grown as a potted plant, croton requires more fertilizer per unit of surface area than plants grown in the landscape. In addition, its esthetic

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Paul R. Fisher, William R. Argo, and John A. Biernbaum

water-soluble fertilizer (WSF) interact to affect the nutrient supply in container substrate throughout crop production ( Argo and Biernbaum, 1996 , 1997 ). A key grower decision is the selection of the WSF formulation and concentration to maintain a

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Timothy K. Broschat

the new growth of plants ( Sharrocks, 1997 ). For many fruit and vegetable crops, well-timed foliar applications of water-soluble B fertilizers are a common practice to prevent deficiencies ( Martens and Westermann, 1991 ). For perennial crops

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J Austin Gimondo, Christopher J. Currey, Darren H. Jarboe, Martin Gross, and William R. Graves

.S. Department of Agriculture, 2016 ). High production densities, plant quality requirements, and the use of soilless substrates with little or no available mineral nutrients contribute to the necessity for fertilization. Synthetic fertilizers account for nearly

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David R. Bryla, Bernadine C. Strik, M. Pilar Bañados, and Timothy L. Righetti

Like many crops, fertilizer practices in blueberry ( Vaccinium sp.) are routinely adjusted by comparing the results of leaf nutrient analysis at a standard time against the known optimal ranges of leaf nutrient concentrations. Effective fertilizer

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Layla J. Dunlap, Jeremiah R. Pinto, and Anthony S. Davis

fertilizer use because of the closed-loop nature of the system ( Landis and Wilkinson, 2004 ). Despite growing interest in subirrigation system use for native plant production, little guidance exists regarding how to adapt fertilization practices to this

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Wendy A. Johnson, Raymond A. Cloyd, James R. Nechols, Kimberly A. Williams, Nathan O. Nelson, Dorith Rotenberg, and Megan M. Kennelly

Nitrogen (N) is an essential nutrient that crops require for growth and development ( Jones, 1998 ; Raven and Smith, 1976 ). The availability and form of N may vary depending on fertilizer type. Organic fertilizers, which are derived from natural