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nursery leachate and runoff. Consequently, when optimal fertilizer application rates are used, crops will perform at their best and environmental impacts will be minimized ( Cabrera, 2003 ). Controlled-release fertilizers have become the principal method

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availability with different P application rates, 2) establishing STP critical level, and 3) calibrating the P requirement for tomato production on a calcareous soil. Materials and Methods A 2-year field trial, during Winter 2014 (29 Oct. 2014–24 Mar. 2015) and

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Bay region may be able to inform other growers, researchers and regulators. There are few data in the literature on actual commercial N and P (measured in kilograms per hectare per year) and water application (measured in liters per hectare) rates for

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et al., 2014 ). As a result, a regulatory framework usually relies on uniform requirements applied across locations and periods. This study discusses the choice of nitrogen fertilizer application rate recommendation as a part of Florida’s uniform

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because trees are generally devoid of branches within 1 m of ground level ( Hong et al., 2018 ), application inefficiencies caused by overapplication and off-target application are compounded in nurseries. For example, even at a reduced rate of 700 L⋅ha −1

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common despite some modern pesticide labels recommending lower spray volume application rates ( Darde et al., 2019 ; Lordan et al., 2019 ; Walklate et al., 2003 ). Moreover, in crops where there are dense canopies or multirow production blocks, such as

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.3% to 0.6% ( Zaman et al., 2012 ). The appropriate application of S might increase the photosynthetic rate in garlic leaves, while enhancing the antioxidant enzyme and nitrate reductase activities of its leaves ( Liu et al., 2010 ). In addition, S

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fertilizer is not the sole contributor to N exports from residential landscapes it is the most direct and deliberate addition of these nutrients to the urban ecosystem. As such, improving the fertilizer management practices (e.g., application rates, timing of

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horticultural practice. To investigate the feasibility of orchard foliar fertilization for increasing apple juice YAN, ‘Red Spy’ apple trees located in Lansing, NY, were provided with three rates of foliar urea applications during the 6 weeks before harvest. The

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–N concentrations in groundwater above the allowed maximum contaminant limit have been attributed to application of nitrogen (N) fertilizers for citrus production ( Alva et al., 2003 ). The N source, rate of uptake, irrigation management, duration and intensity of

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