PLANT AVAILABILITY OF CADMIUM IN SOILS .2. FACTORS RELATED TO THE EXTRACTABILITY AND PLANT UPTAKE OF CADMIUM IN CULTIVATED SOILS

被引：34

作者：

HE, QB ^{[1
]}

SINGH, BR ^{[1
]}

机构：

[1] AGR UNIV NORWAY,DEPT SOIL SCI,POB 5028,N-1432 AS,NORWAY

来源：

ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE | 1993年 / 43卷 / 03期

关键词：

GRASSES; LONG-TERM CULTIVATED SOILS; NEWLY CULTIVATED SOILS; OAT; PLANT CADMIUM; SOIL CADMIUM; SOIL PROPERTIES;

D O I：

10.1080/09064719309411232

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Eighty four soil samples collected from southeastern Norway were analyzed for Cd by extraction with NH4OAc, DTPA, NH4OAc-EDTA, NH4NO3, HCl and CaCl2. The total Cd, pH, exchangeable K and Ca, dithionite-extractable Mn, available P and fine sand (0.2-0.02 mm) contents were the principal factors related to the extractable Cd, with some inter-extractant variations. Cadmium extracted by NH4NO3, NH4OAc, HCl and CaCl2 decreased with increasing soil pH, but the Cd extracted by all the extractants increased with increasing total Cd, exchangeable K and Ca, available P, and Mn-oxide contents in the soils. The Cd concentrations in plants were significantly related to the extractable Cd, exchangeable Ca and Mg, pH, Mn-oxides and organic matter content.

引用

页码：142 / 150

页数：9

共 36 条

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[2]

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[3]

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