CALCIUM DEFICIENCY IN SOME SOLONETZIC SOILS OF ALBERTA

被引：40

作者：

CARTER, MR

WEBSTER, GR

CAIRNS, RR

机构：

[1] AGR CANADA, SOLONETZ SOIL SUBSTN, VEGREVILLE T0B 4L0, ALBERTA, CANADA

[2] UNIV ALBERTA, DEPT SOIL SCI, EDMONTON T6G 2E3, ALBERTA, CANADA

来源：

JOURNAL OF SOIL SCIENCE | 1979年 / 30卷 / 01期

关键词：

D O I：

10.1111/j.1365-2389.1979.tb00974.x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Analysis of displaced soil solutions, at half available moisture percentage, indicated that Mg to Ca (Mg/Ca) ratios and Ca to total cation (Ca/TC) ratios ranged from 0.35 to 3.64 and 0.74 to 0.04, respectively, in the A and B horizons of the solonetzic soils under study. The growth of barley in simulated solution cultures commenced to decline when the Mg/Ca ratio in solution exceeded 1.0, or when the Ca/TC ratio was lower than 0.15, regardless of levels of salinity, concentrations of Ca or Mg, or differences in ionic strength. Reduced growth was followed by symptoms of Ca deficiency. Growth of barley in soil from various horizons of solonetzic soils supported the results found in solution culture. Calcium amendments to soils with low Ca/TC ratios or high Mg/Ca ratios in the soil solution, gave increases in growth and prevented Ca deficiency. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：161 / 174

页数：14

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