Some effects of reaction (pH) changes in
Some effects of reaction (pH) changes in a basaltic soil on the mineral composition of growing crops
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J. W. B. Stewart; S. McConaghy
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Article
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1963
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John Wiley and Sons
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English
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deficient birds treated with pituitary extract each laid an egg every day for at least 5 days after the first injection, although egg production by the calcium-deficient controls had virtuaUy ceased at this stage. ## Conclusion It may be concluded from this experiment that the cessation of egg pr