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Distribution of iron, manganese and phosphorus in the paddy soil profile

Published online by Cambridge University Press:  27 March 2009

M. A. Islam  and
A. A. Choudhury
M. A. Islam
Affiliation:
Agricultural Research Station, Dacca, East Pakistan
A. A. Choudhury
Affiliation:
Agricultural Research Station, Dacca, East Pakistan
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Extract

Soils collected from paddy fields were kept in a waterlogged condition in glass cylinders with and without drainage. After about 2 months of waterlogging soil samples were collected from each cm. depths of the cylinders, both from the bright and dark sides of the cylinders. The soil samples were analysed for iron, manganese and phosphorus. At the beginning these elements were uniformly distributed throughout the entire soil depth, but as a result of waterlogging a distribution pattern developed. More of these elements concentrated on the surface and illuminated sides of the cylinders. It is assumed that such a phenomenon also occurs in the paddy field. These elements by concentrating on the soil surface limit the feeding zones to the top 3–5 cm. of the soil.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 54 , Issue 3 , June 1960 , pp. 318 - 320
Copyright
Copyright © Cambridge University Press 1960

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References

REFERENCES

Islam, M. A. & Elahi, M. A. (1954). J. Agric. Sci. 45, 1.CrossRefGoogle Scholar
Islam, M. A. (1959). Pakistan J. Sci. 11, 60.Google Scholar
Mitsui, S. (1954). Inorganic Nutrition, Fertilization and Soil Amelioration for Low Land Rice. Yokendo Ltd., Tokyo.Google Scholar