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The influence of N and Mg fertilizers and CaCO3 on the absorption of Mg by oats

Published online by Cambridge University Press:  27 March 2009

A. M. Alston
A. M. Alston
Affiliation:
Edinburgh School of Agriculture
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Extract

The effects of applying CaCO3, MgSO4, 7H2O, (NH4)2SO4 and Ca(NO3)2 to the soil on the drymatter yield and Mg absorption of oats at the 4-5-leaf stage were studied in a factorial pot experiment with a Mg-deficient acid sandj soil.

Yield of dry matter was increased by all treatments, particularly CaCO3.

Applying CaCO3, MgSO4, 7H2O and Ca(NO3)3 generally increased % Mg and total Mg uptake of oats. Applying (NH4)2SO4, which reduced the % Mg in oats growing in the unlimed soil, generally increased % Mg where CaCO3 was also added. The rate of nitrification of NH4, which was slow in the acid soil, was greatly increased by applying CaCO3.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 66 , Issue 1 , February 1966 , pp. 61 - 66
Copyright
Copyright © Cambridge University Press 1966

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References

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