denitrify

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de·ni·tri·fy

(dē-nī'tri-fī),

To remove nitrogen from any material or chemical compound.

denitrify

(dē-nī′trə-fī′)

tr.v. denitri·fied, denitri·fying, denitri·fies

1. To remove nitrogen or nitrogen groups from (a compound).

2. To reduce (nitrates or nitrites) to nitrogen-containing gases, as by bacterial action on soil.

de·ni′tri·fi·ca′tion (-fĭ-kā′shən) n.

denitrify

(dē-nī′trĭ-fī)

To remove nitrogen from something.

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References in periodicals archive ?

In contrast, almost the entire denitrified nitrate in the Kinloch profile appears to have been native nitrate, despite its concentration having been low, similar to the Rangiatea profile.

Denitrification capacity in the vadose zone at three sites in the Lake Taupo catchment, New Zealand

The rest, he says, is lost to the environment: "Unless an equivalent amount is denitrified back to molecular [N.

Global nitrogen: cycling out of control

Small N-loads (185 kg N/ha) in the non-Pin Gin soils imply that [approximately equal to] 1315 kg/ha of the nitrate-N that leached below the root-zone during the last 50 years, under the minimum leaching scenario, either denitrified or entered lateral-flow and/or deep groundwater.

Low retention in non-Pin Gin soils indicates that most of the nitrate that leached below the root-zone probably entered water bodies and/or denitrified.

Nitrate retention under sugarcane in wet tropical Queensland deep soil profiles

Between 25%, and 75% of the nitrogen regenerated in the sediments was estimated to have been denitrified (Table I), indicating that denitrification is a significant sink for nitrogen in Parker River Estuary.

Estimating denitrification in sediments of the Parker River Estuary, Massachusetts

2]O flux on Day 1 was possibly due to the native inorganic-N, already in the soil, being denitrified in response to the formation of transient anaerobic microsites upon the addition of the aqueous amendments.

Emission of nitrogen oxides and ammonia from varying rates of applied synthetic urine and correlations with soil chemistry

2001) estimated that 40% of applied urea at the rate of 115 kg N/ha was lost from an ungrazed dairy pasture in tropical Queensland; about half was lost as ammonia volatilisation and the other half presumed to be denitrified, although the proportion of [N.

Nitrous oxide emission from Australian agricultural lands and mitigation options: a review

1986) observed in irrigated maize that <3% of applied N fertiliser was denitrified, although about 70% of this N was evolved as [N.

Estimating nitrous oxide emissions from flood-irrigated alkaline grey clays

Given unlimited time, and assuming no further transformations occur, denitrified N gases will eventually diffuse from areas of high concentration in the soil to low concentrations at the surface.

Resolution of the [sup.15]N balance enigma?

From the foregoing, we suggest that 30% of the nitrate that leached below cane-118 root-zone entered deep groundwater or lateral flow, and/or was denitrified compared with 86% for cane-130, and 93% for banana.

Nitrate accumulation under cropping in the Ferrosols of Far North Queensland wet tropics

15]N not denitrified Nitrate recovered as a result of not Treatment (denitrified) straw addition recovered After 4 days Control 9.

Denitrification and immobilisation in flood-irrigated alkaline grey clays as affected by nitrification inhibitors, wheat straw, and soil texture

3]-N was probably denitrified or immobilised because of the long residence time of N in the soil under reasonably high temperatures (Table 1).

Effect of macropore flow on the transport of surface-applied cow urine through a soil profile