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

relatively low specific surface area for P adsorption compared with soils used in conventional agricultural production. Continuous fertilization with controlled-release, soluble granular, or liquid fertilizer coupled with daily irrigation, commonplace in

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Gitta Shurberg, Amy L. Shober, Christine Wiese, Geoffrey Denny, Gary W. Knox, Kimberly A. Moore, and Mihai C. Giurcanu

of three clusters per species were planted in each treatment plot. Controlled-release fertilizer was applied at annual N rates of 0, 2, 4, 6, and 12 lb/1000 ft 2 ; N rates were based on the current Florida Friendly Landscaping™ Program

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Valtcho D. Zheljazkov, Juan L. Silva, Mandar Patel, Jelena Stojanovic, Youkai Lu, Taejo Kim, and Thomas Horgan

nutrient source. The objective was to compare the productivity of four crops grown in commercial growth medium in pots with the following treatments: untreated control, noncomposted hair cubes at 2.5%, 5%, and 10% by weight, a controlled-release fertilizer

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Mary Jane Clark and Youbin Zheng

green roof vegetation should be considered when determining optimal green roof fertilizers. Fig. 1. Overall appearance of green roof modules grown under eight controlled-released fertilizer rates. The overall appearance was ranked using a scale ranging

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Amy L. Shober, Kimberly A. Moore, Nancy G. West, Christine Wiese, Gitta Hasing, Geoffrey Denny, and Gary W. Knox

with 6-ft spacing between plants and 12-ft spacing between rows on 15 to 17 June 2009. A total of three shrubs of each species were planted in each plot. Controlled-release fertilizer was broadcast applied to the shrub bed at annual N rates of 0, 2, 4

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Mohammed Z. Alam, Calvin Chong, Jennifer Llewellyn, and Glen P. Lumis

water use and runoff from container growing. In Ontario, controlled-release fertilizers (CRFs) are most commonly used to fertilize container-grown plants. CRF is commonly incorporated into the medium before potting or topdressed on the surface of the

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Timothy K. Broschat

their N, but none of their K, in controlled-release form. Table 2. Fertilizer treatments applied to areca palms ( Dypsis lutescens ) planted in calcareous fill or native sand soils in Davie, FL. In Dec. 2013 all palms were measured for initial height to

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Amir Ali Khoddamzadeh and Bruce L. Dunn

product, The Scotts Co., Marysville, OH) controlled-release fertilizer were applied on the surface of each pot and tap water was then used during irrigations. Pots were drip irrigated at a rate that allowed media saturation and leaching to be estimated at

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Carolyn F. Scagel, Richard P. Regan, Rita Hummel, and Guihong Bi

Aug. 2006 by topdressing urea formaldehyde (16-UF, 32-UF) on the surface of the growing substrate or on 5 May 2006 by topdressing a controlled-release fertilizer [16-CRF, 32-CRF (Osmocote Classic© 18-6-12; Scotts Horticulture, Marysville, OH)] at

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Yuqi Li and Neil S. Mattson

least 1 week. Mattson (2014) reported that performance of bedding plants grown with substrate-incorporated organic fertilizers compared with CF and controlled-release fertilizer (CRF). Liquid fertilized plants were the largest in all cases; however