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Forms of nitrogen in waterlogged soils and their contribution to yield and nitrogen uptake by rice

Published online by Cambridge University Press:  27 March 2009

S. S. Prasad ,
A. K. Sarkar  and
N. P. Sinha
S. S. Prasad
Affiliation:
Department of Soil Science and Agricultural Chemistry, Rajendra Agricultural University, Pusa, Samastipur, Bihar 848125, India
A. K. Sarkar
Affiliation:
Department of Soil Science and Agricultural Chemistry, Rajendra Agricultural University, Pusa, Samastipur, Bihar 848125, India
N. P. Sinha
Affiliation:
Department of Soil Science and Agricultural Chemistry, Rajendra Agricultural University, Pusa, Samastipur, Bihar 848125, India
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Extract

The major portion of nitrogen nutrition of flooded rice is met through the mineralization of organic forms of N present in soil. This is true even when fertilizer nitrogen is added. The mineralization of organic matter under waterlogged conditions is governed mainly by the prevailing chemical and biological conditions. In recent years, attempts have been made to characterize the products of hydrolysis of soil organic nitrogen (Asami & Hara, 1970; Shinde, 1978; Subba Rao & Ghosh, 1981). Information on different fractions of nitrogen in waterlogged rice soils is scanty.

Type
Short Note
Information
The Journal of Agricultural Science , Volume 107 , Issue 1 , August 1986 , pp. 215 - 217
Copyright
Copyright © Cambridge University Press 1986

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References

REFERENCES

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