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María José Jiménez-Moreno and Ricardo Fernández-Escobar

macronutrients ( Fernández-Escobar et al., 2015 ). Consequently, there have been no cases of P deficiency reported with field-grown olive trees ( Hartmann et al., 1966 ). Deficiency symptoms have been induced only in young plants grown under an inert substrate

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Paul V. Nelson, Cheon-Young Song, Jinsheng Huang, Carl E. Niedziela Jr., and William H. Swallow

Many ornamental greenhouse crops are grown under some form of stress or growth regulation that limits the full potential for their shoot volume production. This is universally true for young plants produced in plug seedling trays and bedding plant

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Dewayne L. Ingram, Charles R. Hall, and Joshua Knight

shrub in the U.S. Pacific northwest region [‘Green Beauty’ boxwood ( Buxus microphylla japonica )], herbaceous annual flowering plant [wax begonia ( Begonia × semperflorens-cultorum )], young plants (foliage plants in 72-count trays), outdoor

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Glenn B. Fain, Charles H. Gilliam, Jeff L. Sibley, Cheryl R. Boyer, and Anthony L. Witcher

-grown herbaceous annual crops. Materials and Methods Studies were conducted at the USDA-ARS Southern Horticultural Laboratory in Poplarville, MS, and Young's Plant Farm in Auburn, AL. Loblolly pine ( Pinus taeda ) was harvested from a 12-year-old plantation

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Qingwu Meng and Erik S. Runkle

effective as conventional lamps at regulating flowering of photoperiodic crops. Materials and methods Plant material. All young plants were produced by a commercial plant producer [C. Raker & Sons, Litchfield, MI (Raker)]. Seeds of ‘Hawaii Blue’ ageratum

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Erin J. Yafuso, Paul R. Fisher, Ana C. Bohórquez, and James E. Altland

substrate particles in propagation increases risk of inadequate gas exchange in the substrate. A wide range of substrates and amendments is used during young plant production, including peat (sphagnum), bark, coir, wood fiber, vermiculite, perlite, phenolic

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Renee H. Harkins, Bernadine C. Strik, and David R. Bryla

reflectometry (TDR) system (Soilmoisture Equipment Corp., Santa Barbara, CA) to determine the distribution of water between drip emitters after irrigation and to ensure that soil moisture was adequate (greater than 20%) near the young plants. The TDR system was

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

stress and plant mortality in the young planting ( Bañados et al., 2012 ). Through destructive harvests and the use of depleted 15 N fertilizer, we estimated that unfertilized plants gained 1.6 g/plant of N from soil sources, whereas fertilized plants

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Oscar L. Vargas, David R. Bryla, Jerry E. Weiland, Bernadine C. Strik, and Luna Sun

recommended initially for fertigation because of low application efficiency in young plantings ( Bryla and Machado, 2011 ). Even when a drip line is located near the base of the plants, over half of the emitters in a standard 0.30–0.45 m spacing configuration

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W. Garrett Owen

Horticultural Co., West Chicago, IL). Young plants of each cultivar with similar heights, stem caliper, and node numbers were selected and transplanted, one plant per 16.5-cm (1.9-L) diameter container (Landmark Plastic Corp., Akron, OH). Containers were filled