Influence of soil pH and application of zinc on the yield and uptake of selected nutrient elements by rice1
作者:
J. E. Sedberry,
D. P. Bligh,
F. J. Peterson,
M.C. Amacher,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1988)
卷期:
Volume 19,
issue 5
页码: 597-615
ISSN:0010-3624
年代: 1988
DOI:10.1080/00103628809367961
出版商: Taylor & Francis Group
关键词: Zinc chelate;plant growth stages;Crowley silt loam
数据来源: Taylor
摘要:
Rice grown on a recently water‐leveled Crowley silt loam that contained less than 1.8 μg g‐1of 0.1NHCl‐extractable Zn with pH levels ranging from 6.8 to 7.7, responded to Zn application. Each kg ha of applied Zn as Zn chelate, 14.2 % Zn, resulted in increases of +673, +477, and +2026 kg rice ha‐1at pH 6.8, 7.3, and 7.7, respectively. There was a critically low concentration of Zn in rice plants at the midtillering, first joint, and panicle differentiation stages of plant development when no Zn was applied. A yield response to applied Zn was obtained when the concentration of Zn in rice tissue was less than 15 μg g‐1.
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