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Desire Djidonou, Xin Zhao, Karen E. Koch and Lincoln Zotarelli

developed to improve fertilizer use efficiency by plants and minimize the adverse impact of nutrient loss from the production site. On sandy soils with low intrinsic water and nutrient retention capacities, site-specific practices are being used to increase

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-release fertilizer rates, indicate that capillary wick irrigation provides similar water use and fertilizer use efficiencies as periodic subirrigation and no-leach overhead irrigation. Connecticut survey documents nursery and landscape industry preferences for

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Bee Ling Poh, Aparna Gazula, Eric H. Simonne, Francesco Di Gioia, Robert C. Hochmuth and Michael R. Alligood

production costs ( Banedjschafie et al., 2006 ; Ouchi et al., 1990 ; Sainju et al., 2002 ; Sivapalan, 2006 ; Zhang et al., 2003 ). Other efforts to increase fertilizer use efficiency have focused on modifying fertilizer rates ( Zotarelli et al., 2008

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Xin Zhao, Qianqian Dong, Shubang Ni, Xiyong He, Hai Yue, Liang Tao, Yanli Nie, Caixian Tang, Fusuo Zhang and Jianbo Shen

fertilizers on the soil surface, resulting in low fertilizer-use efficiencies. We recommend that furrow-band application of fertilizers (fertilizers are applied into a 10- to 15-cm deep furrow as a localized supply of nutrients) could be more suitable for

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Thomas A. Obreza and Arnold Schumann

. To remain sustainable, the industry must improve nitrogen (N) and phosphorus (P) fertilizer use efficiency because total maximum daily load implementation will limit N and/or P loading in watersheds where citrus is grown. The objectives of this

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Jinrong Liu, W. Roland Leatherwood and Neil S. Mattson

2 ). Collards FW exhibited a significant interaction as well, but not DW ( Table 2 ). This relationship indicates a possible gain in fertilizer use efficiency under subirrigation. To further elucidate this relationship, quadratic regression equations

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Silvia Jiménez Becker, Blanca María Plaza and María Teresa Lao

of fertilizers and decreased fertilizer use efficiency ( Rengel and Damon, 2008 ). Intensive crop production typically involves the application of an excessive amount of many nutrients as a precaution. Thus, although the application of excessive

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Juan Carlos Melgar, Arnold W. Schumann and James P. Syvertsen

., 1996 ) and also fertilizer use efficiency ( Quiñones et al., 2003 ; Russelle et al., 1981 ). Because tree growth and yield can be limited by low nitrogen (N) supply ( Syvertsen and Sax, 1999 ), historical emphasis has been on applying sufficient N to

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Dan TerAvest, Jeffrey L. Smith, Lynne Carpenter-Boggs, David Granatstein, Lori Hoagland and John P. Reganold

Mullinix, 2008 ) and release N slowly, which can result in lower yields and low leaf and fruit tissue N levels compared with conventional apple systems ( Delate et al., 2008 ). Improving organic fertilizer-use efficiency is critical to increasing cost

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Bee Ling Poh, Aparna Gazula, Eric H. Simonne, Robert C. Hochmuth and Michael R. Alligood

In Florida, irrigation scheduling is becoming more important in vegetable production as a result of increasing restriction on use of water resources ( Dukes et al., 2010 ) and the need to improve fertilizer use efficiency ( Obreza and Sartain, 2010