Root distribution of grapefruit trees under dry granular broadcast vs. fertigation method
作者： M Zhang , AK Alva , YC Li , DV Calvert , None
DOI: 10.1007/BF02185567
关键词:
摘要: The aim of this study was to determine the effects nitrogen (N) fertilization methods on root distribution and mineral element concentrations White Marsh grapefruit (Citrus paradisi MacFadyen) trees sour orange (C. aurantium Lush) rootstock a poorly drained soil. At 0–15 cm depth soil, density significantly greater for receiving 112 kg N ha-1 yr-1 as dry granular broadcast than those same amount fertigation. Of total roots in top 60 >75% at <10% 30–60 cm. Root greatest near emitter. Nitrogen concentration which received fertigation compared fertilizer or no N.
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