Emission of N2O from farmer's field during black gram cultivation and incubation experiments in laboratory

Autor:	G. Roy Chaudhury, T.S. Ramulu, Manish Kumar, S.N. Das, Santosh Kumar Sahoo
Rok vydání:	2010
Předmět:	Health Toxicology and Mutagenesis chemistry.chemical_element Flux Soil carbon equipment and supplies Pollution Nitrogen chemistry.chemical_compound chemistry Agronomy Urea Environmental Chemistry Environmental science Ammonium Incubation Carbon Gram
Zdroj:	Toxicological & Environmental Chemistry. 92:1043-1052
ISSN:	1029-0486 0277-2248
Popis:	N2O emission was measured during the cultivation of black gram in an upland farmer's field following traditional agricultural practices. The land is exclusively used for the cultivation of black gram without using chemical or organic fertilizers. The N2O flux increased appreciably during rain and flowering stages. The N2O emission was found to correlate well with soil carbon (C) and among the parameters studied. The diurnal measurements showed that N2O emission increased with an increase of ambient temperature, i.e., during day time. The seasonally integrated flux (SIF) was found to be 8.26 ±0.19 g ha−1, which is much lower compared to the reported values due to lower soil C and N. Incubation experiments were carried out in the laboratory taking the same soil collected up to a depth of ∼30 cm. Two principal soil parameters, such as soil N content in the form of externally added urea and water filled pore space (WFPS) were varied for incubation experiments. In both the cases, the emission of N2O increased ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2c79ee5e95d42ff6275efc42b80df481 https://doi.org/10.1080/02772240903252157 Zobrazit plný text záznamu