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Tongyin Li, Guihong Bi, Richard L. Harkess, Geoffrey C. Denny, Eugene K. Blythe, and Xiaojie Zhao

). In another study, increasing N fertilization rate was found to promote shoot growth of Rhododendron ‘Karen’, with decreasing N and phosphorus (P) fertilization rates promoting root growth ( Ristvey et al., 2007 ). Optimal plant growth was maintained

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Guihong Bi, Carolyn F. Scagel, and Richard Harkess

determine: 1) how rate of N application during the vegetative stage of production influences plant growth; 2) whether plant N content before cold storage influences plant growth and flower development during forcing; and 3) whether urea sprays in the fall

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Brian E. Jackson, Robert D. Wright, Jake F. Browder, J. Roger Harris, and Alex X. Niemiera

between PB and PTS were less when plants were supplied with higher fertilizer rates (21 g versus 15 g Osmocote Plus 15N–3.9P–10K; O.M. Scott Horticulture Products, Maryville, OH). Growth differences in these studies were attributed to lower nutrient levels

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Amy L. Shober, Andrew K. Koeser, Drew C. McLean, Gitta Hasing, and Kimberly K. Moore

consensus and limited research serve as the basis for these published application rates ( Shober et al., 2010 ). Shober et al. (2013) found that annual N application rates of 98 to 195 kg·ha −1 were sufficient to maintain acceptable plant growth [i

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Kimberly A. Moore, Amy L. Shober, Gitta Hasing, Christine Wiese, and Nancy G. West

perennial landscape species will change when soil conditions, such as texture and fertility, vary. Our objective was to evaluate plant growth and quality response of warm- and cool-season annuals and herbaceous perennials to a range of N fertilizer rates

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Brian E. Jackson, Robert D. Wright, and Michael C. Barnes

Schnitzler (1999) , Wright et al. (2006) , and Jackson et al. (2008) have shown that growth of plants produced in wood substrates is equal to plants produced in peat and PB substrates when higher fertilizer rates are supplied. Stability of wood substrates

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Mariateresa Cardarelli, Youssef Rouphael, Delia Muntean, and Giuseppe Colla

; Roberts, 2008 ). Optimization of N application rate is also crucial for commercial ornamental production. In fact, there is a critical N concentration below which the plants show a limited growth and above which the plant show a luxury consumption leading

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Juan Carlos Díaz-Pérez and James E. Hook

) incidence, and plant mortality as affected by irrigation rate [percentage of crop evapotranspiration (ETc)] and calcium fertilization in bell pepper (Tifton, GA, Spring 2005). Plant growth. In 2001, vegetative top FW decreased with increasing irrigation rate

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Changwei Shen, Yifei Ding, Xiqiong Lei, Peng Zhao, Shuo Wang, Yangchun Xu, and Caixia Dong

colorimetric method ( Alexander and Edwards, 2003 ). TA was determined using standard acid–base titration ( Sánchez, 2015 ). In 2013 growing season, to evaluate the foliar K fertilizers on fruit growth rate and K concentration in fruit and leaves during the

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Marco Volterrani, Nicola Grossi, Monica Gaetani, Lisa Caturegli, Aimila-Eleni Nikolopoulou, Filippo Lulli, and Simone Magni

growth or seed head formation while preserving stolon growth ( McCarty, 2011 ). Volterrani et al. (2012) reported a significant reduction of stolon length when TE was applied on ‘Patriot’ hybrid bermudagrass over the labeled rate. The available data on