Fractions of soil nitrogen during different periods of submergence and their effects on yield and nutrition of wetland rice (Oryza sativa L.)

Mohapatra, SD

doi:10.1007/bf00257919

Cited by 5 publications

(2 citation statements)

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“…An experiment carried out by Mohapatra [29], to study the effect of submergence on the changes in (NH 4 + +NO 3 -)-N content in soil receiving various organic treatments (Table 1). The study revealed that the changes in mineral-N content for soil receiving organic N alone or in combination with inorganic N during the different periods of waterlogging.…”

Section: Mineralization and Immobiliza-tionmentioning

confidence: 99%

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Nitrogen Transformation in Waterlogged Soil in Indian Rice Fields: A Review

Parit

Bharteey

Saikia

et al. 2020

JEAI

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No other element can match the essentiality of nitrogen in soil for growth and development of plants and its transformations among various forms viz., nitrite, nitrate, ammonium are mostly mediated by microbes. As its transformation depends on major microbial activity and thus, there is a huge difference between the transformation of it in aerobic soil and anaerobic soil. This difference mainly arises due to presence and absence of oxygen. The absence of oxygen in soil creates anaerobic condition and thus promotes the growth of anaerobic microbes. In submerged soil, applied nitrogen is lost in various forms such as volatilization, denitrification, leaching and runoff out of which ammonium volatilization causes the maximum loss. The recovery of applied nitrogen, as recorded from various filed experiments in India, has been found to vary from 28 to 34% for submerged rice. The chemistry of nitrogen in submerged soil is quite interesting for this review.

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Section: Mineralization and Immobiliza-tionmentioning

confidence: 99%

“…FYM, farmyard manure; WHC, water hycinth compost; AS, ammonium sulphate (figures in parentheses in the last column indicate the percentage of total organic N mineralized)[29] …”

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confidence: 99%