N-mineralisation and inorganic-N uptake in a broad-leafed forest of Central Himalaya


Citation

Usman S., . and Rawat Y.S., . and Singh S.P., . N-mineralisation and inorganic-N uptake in a broad-leafed forest of Central Himalaya. pp. 599-609. ISSN 0128-1283

Abstract

N-mineralisation and inorganic-N uptake in a broad-leafed forest of Central Himalaya. Net N-mineralisation and nitrification rates were measured by in situ incubation of soil in a broad-leafed forest in central Himalaya. The rate of nitrification among different seasons was in the order:rainy more than winter more than summer while that of ammonification was in the order: rainy more than summer more than winter. Rainy season conditions were more favourable for N mineralisation. The size of the available nitrogen pool ranged from 10.0 miu gram per gram (winter) to 35.8 miu gram per gram (March). The trend for N-mineralisation rate was opposite to that of the size of the available N. The value of inorganic-N uptake was maximum in the month of July and ranged between 0 and 25 miu gram per gram across different months. In the present studied forest nitrate-N was the dominant form of inorganic-N taken up by plants. The rate of N-mineralisation was positively correlated with the root decomposition.


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Abstract

N-mineralisation and inorganic-N uptake in a broad-leafed forest of Central Himalaya. Net N-mineralisation and nitrification rates were measured by in situ incubation of soil in a broad-leafed forest in central Himalaya. The rate of nitrification among different seasons was in the order:rainy more than winter more than summer while that of ammonification was in the order: rainy more than summer more than winter. Rainy season conditions were more favourable for N mineralisation. The size of the available nitrogen pool ranged from 10.0 miu gram per gram (winter) to 35.8 miu gram per gram (March). The trend for N-mineralisation rate was opposite to that of the size of the available N. The value of inorganic-N uptake was maximum in the month of July and ranged between 0 and 25 miu gram per gram across different months. In the present studied forest nitrate-N was the dominant form of inorganic-N taken up by plants. The rate of N-mineralisation was positively correlated with the root decomposition.

Additional Metadata

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Item Type: Article
Additional Information: Summaries (En Ms)
AGROVOC Term: BROADLEAVED FORESTS
AGROVOC Term: NITROGEN
AGROVOC Term: MINERALIZATION
AGROVOC Term: INORGANIC FERTILIZERS
AGROVOC Term: NITRIFICATION
AGROVOC Term: NUTRIENT UPTAKE
AGROVOC Term: PLANTS
AGROVOC Term: DEGRADATION
AGROVOC Term: HIMALAYAN REGION BOSQUE DE FRONDOSAS
AGROVOC Term: NITROGENO
Depositing User: Ms. Norfaezah Khomsan
Last Modified: 24 Apr 2025 05:52
URI: http://webagris.upm.edu.my/id/eprint/17945

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