Influence of residual phosphate fertilizer on labile and extractable zinc in hawaii soils
作者:
M. Saeed,
R. L. Fox,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1978)
卷期:
Volume 9,
issue 8
页码: 685-698
ISSN:0010-3624
年代: 1978
DOI:10.1080/00103627809366844
出版商: Taylor & Francis Group
关键词: DTPA extractable Zn;Calibration of extractable Zn;Soils of the tropics
数据来源: Taylor
摘要:
Zinc availability was studied using five soils from Hawaii which had histories of massive phosphorus applications. Heavy phosphate fertilization usually increased extractable Zn, irrespective of the extractant used. The extra extractable Zn associated with the added P probably came from Zn as an accessory element in the fertilizer. Treble superphosphate commonly used in Hawaii contains about 1400 ppm Zn. The Zn content of phosphate fertilizers must be considered before making statements about the effect of fertilizer P on Zn solubility and availability in soils.
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