caa a22 4500 477112366 CHVBK 20180405111612.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF02185567 doi (NATIONALLICENCE)springer-10.1007/BF02185567 Root distribution of grapefruit trees under dry granular broadcast vs. fertigation method [Elektronische Daten] [M. Zhang, A. Alva, Y. Li, D. Calvert] The aim of this study was to determine the effects of nitrogen (N) fertilization methods on root distribution and mineral element concentrations of White Marsh grapefruit (Citrus paradisi MacFadyen) trees on sour orange (C. aurantium Lush) rootstock on a poorly drained soil. At 0-15 cm depth of soil, root density was significantly greater for trees receiving 112 kg N ha-1 yr-1 as dry granular broadcast than those receiving the same amount of N as fertigation. Of the total roots in the top 60 cm soil, >75% was at 0-15 cm and <10% was at 30-60 cm. Root density was greatest near the emitter. Nitrogen concentration of roots was greater for the trees which received fertigation as compared to the trees which received dry fertilizer broadcast or no N. Kluwer Academic Publishers, 1996 dry granular fertilizer nationallicence fertigation nationallicence irrigation nationallicence root density nationallicence poorly drained soil nationallicence root mineral nutrition nationallicence Zhang M. Institute of Food and Agricultural Sciences, Indian River Research and Education Center, University of Florida, 34945-3138, Fort Pierce, FL, USA aut Alva A. Institute of Food and Agricultural Sciences, Citrus Research and Education Center, University of Florida, 700 Experiment Station Road, 33850, Lake Alfred, FL, USA aut Li Y. Institute of Food and Agricultural Sciences, Indian River Research and Education Center, University of Florida, 34945-3138, Fort Pierce, FL, USA aut Calvert D. Institute of Food and Agricultural Sciences, Indian River Research and Education Center, University of Florida, 34945-3138, Fort Pierce, FL, USA aut Plant and Soil Springer Netherlands; gopher://gopher.wkap.nl 183/1(1996-06-01), 79-84 0032-079X 183:1<79 1996 183 11104 https://doi.org/10.1007/BF02185567 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02185567 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang M. Institute of Food and Agricultural Sciences, Indian River Research and Education Center, University of Florida, 34945-3138, Fort Pierce, FL, USA aut NATIONALLICENCE 700 1- Alva A. Institute of Food and Agricultural Sciences, Citrus Research and Education Center, University of Florida, 700 Experiment Station Road, 33850, Lake Alfred, FL, USA aut NATIONALLICENCE 700 1- Li Y. Institute of Food and Agricultural Sciences, Indian River Research and Education Center, University of Florida, 34945-3138, Fort Pierce, FL, USA aut NATIONALLICENCE 700 1- Calvert D. Institute of Food and Agricultural Sciences, Indian River Research and Education Center, University of Florida, 34945-3138, Fort Pierce, FL, USA aut NATIONALLICENCE 773 0- Plant and Soil Springer Netherlands; gopher://gopher.wkap.nl/ 183/1(1996-06-01), 79-84 0032-079X 183:1<79 1996 183 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer