Methane oxidation in an intensively cropped tropical rice field soil under long-term application of organic and mineral fertilizers

Dali Rani Nayak, Y. Jagadeesh Babu, A. Datta, T. K. Adhya

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Methane (CH 4) oxidation is the only known biological sink process for mitigating atmospheric and terrestrial emissions of CH4 a major greenhouse gas. Methane oxidation in an alluvial soil planted to rice (Oryza sativa L.) under long-term. application of organic (compost with a C/N ratio of 21.71), and mineral fertilizers was measured in a field-cum-laboratory, incubation study. Oxidation rates were quantified in terms of decrease in the concentration of CH4 in the headspace of incubation vessels and expressed as half-life (t(1/2)) values. Methane oxidation rates significantly differed among the treatments and growth stages of the rice crop. Methane oxidation,rates were high at the maximum tillering and maturity stages, whereas they were low at grain-filling stage. Methane oxidation was low (t(1/2) = 15.76 d) when provided with low concentration of CH4. On the contrary high concentration of CH, resulted in faster oxidation (t(1/2) = 6.67 d), suggesting the predominance of "low affinity oxidation" in rice fields. Methane oxidation was stimulated following the application of mineral fertilizers or compost implicating nutrient limitation as one of the factors affecting the process. Combined application of compost and mineral fertilizer, however, inhibited CH 4 oxidation probably due to N immobilization by the added compost. 'The positive effect of mineral fertilizer on CH4 oxidation rate was evident only at high CH, concentration (t(1/2) = 4.80 d), while at low CH, concentration their was considerable suppression (t(1/2) = 17.60 d). Further research may reveal that long-term application of fertilizers, organic or inorganic, may not inhibit CH, oxidation.

Original languageEnglish
Pages (from-to)1577-1584
Number of pages8
JournalJournal of Environmental Quality
Volume36
Issue number6
Publication statusPublished - 2007

Keywords

  • CH4 oxidation
  • oxidizing bacteria
  • carbon-dioxide
  • nitrous-oxide
  • flooded soils
  • trace gases
  • emission
  • ammonium
  • fluxes
  • paddy

Cite this

Methane oxidation in an intensively cropped tropical rice field soil under long-term application of organic and mineral fertilizers. / Nayak, Dali Rani; Babu, Y. Jagadeesh; Datta, A.; Adhya, T. K.

In: Journal of Environmental Quality, Vol. 36, No. 6, 2007, p. 1577-1584.

Research output: Contribution to journalArticle

@article{f0539cb8b6e745e1ba27c6a0da16e7f5,
title = "Methane oxidation in an intensively cropped tropical rice field soil under long-term application of organic and mineral fertilizers",
abstract = "Methane (CH 4) oxidation is the only known biological sink process for mitigating atmospheric and terrestrial emissions of CH4 a major greenhouse gas. Methane oxidation in an alluvial soil planted to rice (Oryza sativa L.) under long-term. application of organic (compost with a C/N ratio of 21.71), and mineral fertilizers was measured in a field-cum-laboratory, incubation study. Oxidation rates were quantified in terms of decrease in the concentration of CH4 in the headspace of incubation vessels and expressed as half-life (t(1/2)) values. Methane oxidation rates significantly differed among the treatments and growth stages of the rice crop. Methane oxidation,rates were high at the maximum tillering and maturity stages, whereas they were low at grain-filling stage. Methane oxidation was low (t(1/2) = 15.76 d) when provided with low concentration of CH4. On the contrary high concentration of CH, resulted in faster oxidation (t(1/2) = 6.67 d), suggesting the predominance of {"}low affinity oxidation{"} in rice fields. Methane oxidation was stimulated following the application of mineral fertilizers or compost implicating nutrient limitation as one of the factors affecting the process. Combined application of compost and mineral fertilizer, however, inhibited CH 4 oxidation probably due to N immobilization by the added compost. 'The positive effect of mineral fertilizer on CH4 oxidation rate was evident only at high CH, concentration (t(1/2) = 4.80 d), while at low CH, concentration their was considerable suppression (t(1/2) = 17.60 d). Further research may reveal that long-term application of fertilizers, organic or inorganic, may not inhibit CH, oxidation.",
keywords = "CH4 oxidation, oxidizing bacteria, carbon-dioxide, nitrous-oxide, flooded soils, trace gases, emission, ammonium, fluxes, paddy",
author = "Nayak, {Dali Rani} and Babu, {Y. Jagadeesh} and A. Datta and Adhya, {T. K.}",
year = "2007",
language = "English",
volume = "36",
pages = "1577--1584",
journal = "Journal of Environmental Quality",
issn = "0047-2425",
publisher = "ASA/CSSA/SSSA",
number = "6",

}

TY - JOUR

T1 - Methane oxidation in an intensively cropped tropical rice field soil under long-term application of organic and mineral fertilizers

AU - Nayak, Dali Rani

AU - Babu, Y. Jagadeesh

AU - Datta, A.

AU - Adhya, T. K.

PY - 2007

Y1 - 2007

N2 - Methane (CH 4) oxidation is the only known biological sink process for mitigating atmospheric and terrestrial emissions of CH4 a major greenhouse gas. Methane oxidation in an alluvial soil planted to rice (Oryza sativa L.) under long-term. application of organic (compost with a C/N ratio of 21.71), and mineral fertilizers was measured in a field-cum-laboratory, incubation study. Oxidation rates were quantified in terms of decrease in the concentration of CH4 in the headspace of incubation vessels and expressed as half-life (t(1/2)) values. Methane oxidation rates significantly differed among the treatments and growth stages of the rice crop. Methane oxidation,rates were high at the maximum tillering and maturity stages, whereas they were low at grain-filling stage. Methane oxidation was low (t(1/2) = 15.76 d) when provided with low concentration of CH4. On the contrary high concentration of CH, resulted in faster oxidation (t(1/2) = 6.67 d), suggesting the predominance of "low affinity oxidation" in rice fields. Methane oxidation was stimulated following the application of mineral fertilizers or compost implicating nutrient limitation as one of the factors affecting the process. Combined application of compost and mineral fertilizer, however, inhibited CH 4 oxidation probably due to N immobilization by the added compost. 'The positive effect of mineral fertilizer on CH4 oxidation rate was evident only at high CH, concentration (t(1/2) = 4.80 d), while at low CH, concentration their was considerable suppression (t(1/2) = 17.60 d). Further research may reveal that long-term application of fertilizers, organic or inorganic, may not inhibit CH, oxidation.

AB - Methane (CH 4) oxidation is the only known biological sink process for mitigating atmospheric and terrestrial emissions of CH4 a major greenhouse gas. Methane oxidation in an alluvial soil planted to rice (Oryza sativa L.) under long-term. application of organic (compost with a C/N ratio of 21.71), and mineral fertilizers was measured in a field-cum-laboratory, incubation study. Oxidation rates were quantified in terms of decrease in the concentration of CH4 in the headspace of incubation vessels and expressed as half-life (t(1/2)) values. Methane oxidation rates significantly differed among the treatments and growth stages of the rice crop. Methane oxidation,rates were high at the maximum tillering and maturity stages, whereas they were low at grain-filling stage. Methane oxidation was low (t(1/2) = 15.76 d) when provided with low concentration of CH4. On the contrary high concentration of CH, resulted in faster oxidation (t(1/2) = 6.67 d), suggesting the predominance of "low affinity oxidation" in rice fields. Methane oxidation was stimulated following the application of mineral fertilizers or compost implicating nutrient limitation as one of the factors affecting the process. Combined application of compost and mineral fertilizer, however, inhibited CH 4 oxidation probably due to N immobilization by the added compost. 'The positive effect of mineral fertilizer on CH4 oxidation rate was evident only at high CH, concentration (t(1/2) = 4.80 d), while at low CH, concentration their was considerable suppression (t(1/2) = 17.60 d). Further research may reveal that long-term application of fertilizers, organic or inorganic, may not inhibit CH, oxidation.

KW - CH4 oxidation

KW - oxidizing bacteria

KW - carbon-dioxide

KW - nitrous-oxide

KW - flooded soils

KW - trace gases

KW - emission

KW - ammonium

KW - fluxes

KW - paddy

M3 - Article

VL - 36

SP - 1577

EP - 1584

JO - Journal of Environmental Quality

JF - Journal of Environmental Quality

SN - 0047-2425

IS - 6

ER -