Temporal changes in N2O efflux from cropped and fallow agricultural fields

Verma, A. K.; Tyagi, Larisha; Yadav, Sumit; Singh, Sunil Kumar

doi:10.1016/j.agee.2006.02.005

Cited by 30 publications

(13 citation statements)

References 34 publications

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“…2) has shown an impact of the fertiliser application rate on nitrous oxide flux from the soil to the atmosphere. Increasing the application rate of fertiliser significantly increased the nitrous oxide flux, which corresponds with the results obtained by other researchers (Eichner 1990;Bouwman 1996;Verma et al 2006;Jones et al 2007;He et al 2009;Pang et al 2009;Lin et al 2010;Mapanda et al 2011). The time period significantly affects N 2 O flux.…”

Section: Resultssupporting

confidence: 91%

“…High rate of N fertiliser application increases concern regarding N 2 O emissions from intensively farmed fields (He et al 2009;Pang et al 2009;Lin et al 2010;Zhu et al 2011). Although N 2 O emissions from the soil increase with the amount of N fertiliser (Eichner 1990;Bouwman 1996;Verma et al 2006;Jones et al 2007;He et al 2009;Pang et al 2009;Lin et al 2010;Mapanda et al 2011), there is still a lack of data for fertiliserintensive systems (Pfab et al 2012). In a compiled…”

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confidence: 99%

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Impact of the size of nitrogen fertiliser application rate on N<sub>2</sub>O flux

Šima¹,

Nozdrovický²,

Krištof³

et al. 2014

Res. Agric. Eng.

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AbstractŠima T., Nozdrovický L., Krištof K., Krupička J., 2014. Impact of the size of nitrogen fertiliser application rate on N 2 O flux. Res. Agr. Eng., 60: 24-29.The application rate of a nitrogen fertiliser is one of the most important factors that affect the nitrous oxide (N 2 O) flux. Calk ammonium nitrate with 27% nitrogen content was spread by a fertiliser spreader VICON RS-L connected with a tractor Zetor 16145 and incorporated into the soil by a power harrow Pöttinger Lion 301 six hours after spreading. Monitoring points were selected based on the size of application rate 0, 100, 200 and 300 kg/ha and were measured 7, 14, 21 and 28 days after fertiliser application and incorporation into the soil. Nitrous oxide emissions were measured by a photoacoustic field gas monitor INNOVA 1412 with a multipoint sampler INNOVA 1309. Based on the data obtained, there were found statistically significant differences among time intervals and among the size of the application rate at a 95.0% confidence level. Results have shown impacts of the size of fertiliser application rate and time interval after fertilisation on nitrous oxide flux.

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Section: Resultssupporting

confidence: 91%

mentioning

confidence: 99%

Impact of the size of nitrogen fertiliser application rate on N<sub>2</sub>O flux

Šima¹,

Nozdrovický²,

Krištof³

et al. 2014

Res. Agric. Eng.

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“…These conclusions corresponds with results obtained by other researchers, however at different level of fertilizer (e.g. Eichner, 1990;Bouwman, 1996;Verma et al 2006;Jones et al 2007;He et al 2009;Pang et al 2009;Lin et al 2010;Mapanda et al 2011;Šima, 2014;Šima et al 2014a;Šima et al 2014b).…”

Section: Resultssupporting

confidence: 91%

“…Although intensive research conducted by various researchers (e.g. Eichner, 1990;Bouwman, 1996;Verma et al, 2006;Jones et al, 2007;He et al, 2009;Pang et al, 2009;Lin et al, 2010, Mapanda et al, 2011 indicated that N 2 O emissions from the soil is increasing with the amount of nitrogen fertiliser however there is still a lack of data sets for intensive systems according to fertilisers as it was pointed out by Pfab et al (2012). In compiled data sets provided by Skiba et al (2001) and later on by Šima (2014), Šima et al (2014a), Šima et al (2014b) it was concluded that increasing of N 2 O emissions was caused by significant increase of rates of N added.…”

Section: Introductionmentioning

confidence: 99%

Application of Nitrogen Fertilizers and its Effect on Timeliness of Fertilizers Decomposition Resulting in Lost of Nitrogen Through Nitrous Oxide Emissions from Soil

Krištof

Šima

Nozdrovický

et al. 2018

Acta Univ. Agric. Silvic. Mendelianae Brun.

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Fertilizers are an important tool to maintain soil fertility and as an enhancement for the efficient crop production. The system of fertilizers application affects the final dose and commonly causes local overdosing or insuficient spatial distribution of fertilizers which are a very important source of nitrous oxide emissions (N 2 O) from the soil into the atmospher observation of such phenomenon are among the key factors defining environmental impacts of agriculture. A study was conducted to observe the effect of application dose of fertilizer on N 2 O emission from the soil. CAN (Calcium ammonium nitrate -consist of 27 % nitrogen) was spread by a fertiliser spreader Kuhn Axera 1102 H-EMC aggregated with a tractor John Deere 6150 M. Incorporation of fertilizer into the soil was done by power harrow Pöttinger Lion 302. The application dose was set at 0, 100, 200 and 300 kg. ha -1 while monitoring points were selected at the base of this application doses in respective places. Measurements were conducted at time intervals 7, 14, 21 and 28 days after fertiliser application and following incorporation. Nitrous oxide emissions were measured by field gas monitor set INNOVA consisting of a photoacoustic gas monitor INNOVA 1412 and a multipoint sampler INNOVA 1309. Statistically significant differences was found among time intervals and among the application dose (p > 0.05). It was observed that the application dose of selected fertilizers has the direct effect on nitrous oxide (N 2 O) emissions released from soil into the atmosphere. An increase of greenhouse gas emissions was observed in range from 0.83 to 152.33 %. It can be concluded that the local overdose of fertilizers negatively affects environmental impact of agricultural practices at greenhouse gas emissions (GHGs).

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“…Benefits of fertigation over traditional broadcast or drop-fertilizing methods include (1) timely correction of in-season nutrient deficiencies, (2) application nutrients in synchrony with crop demand, (3) use a low volume of water, at low pressure, resulting in low energy costs, (4) improved nutrient and water use-efficiency due to increased root density and reduced nutrient leaching, (5) reduced incidence of pest and weed invasion, and other plant diseases, due to a reduced wetted area and drier soil surface [6][7][8][9][10].…”

Section: Merits and Demeritsmentioning

confidence: 99%

Nutrient Management Strategies for Coping with Climate Change in Irrigated Smallholder Cropping Systems in Southern Africa

Kadyampakeni

Fandika²,

Pungulani³

2017

Phytoremediation

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Sound management of soil nutrients is critical for optimizing crop vegetative and reproductive development and realizing high yields in irrigated cropping systems. This paper discusses the work done in Africa and presents lessons from other parts of the world for improved nutrient management under irrigation. Considering the rising temperatures and erratic rainfall as a consequence of climatic change and depleted soil nutrients as a result of continuous cropping, this review offers remedial options for managing soil fertility while optimizing water use and crop yields. The paper intends to inform agricultural policy makers and help farmers and organizations in Africa to manage soil nutrient and water resources efficiently and achieve high yields. Importantly, this discussion should stimulate further research in nutrient and water management under varying ecological scenarios of southern Africa to provide a cogent basis for climate change adaptation interventions.

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Temporal changes in N2O efflux from cropped and fallow agricultural fields

Cited by 30 publications

References 34 publications

Impact of the size of nitrogen fertiliser application rate on N<sub>2</sub>O flux

Impact of the size of nitrogen fertiliser application rate on N<sub>2</sub>O flux

Application of Nitrogen Fertilizers and its Effect on Timeliness of Fertilizers Decomposition Resulting in Lost of Nitrogen Through Nitrous Oxide Emissions from Soil

Nutrient Management Strategies for Coping with Climate Change in Irrigated Smallholder Cropping Systems in Southern Africa

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