Tillage and nitrogen fertilization in irrigated maize: key practices to reduce soil CO2 and CH4 emissions

Pareja-Sánchez, Evangelina; Cantero‐Martínez, Carlos; Álvaro‐Fuentes, Jorge; Plaza‐Bonilla, Daniel

doi:10.1016/j.still.2019.03.007

Cited by 44 publications

(23 citation statements)

References 40 publications

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“…Overall, a zerobalance of CH4 emissions was observed in our study since in only two treatments (in Deep soil) a significant negative cumulative emission was detected considering the whole 3year rotation period. Our results indicate that no emission of CH4 were produced in maize and wheat cropped in sprinkler irrigated fields, that corroborate the results of previous studies (Álvaro-Fuentes et al, 2016;Pareja-Sánchez et al, 2019) under similar climatic and management conditions.…”

Section: Discussionsupporting

confidence: 91%

Feasibility of stabilised nitrogen fertilisers decreasing greenhouse gas emissions under optimal management in sprinkler irrigated conditions

Mateo‐Marín

Quı́lez

Castillo

et al. 2020

Agriculture, Ecosystems & Environment

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Section: Discussionsupporting

confidence: 91%

Feasibility of stabilised nitrogen fertilisers decreasing greenhouse gas emissions under optimal management in sprinkler irrigated conditions

Mateo‐Marín

Quı́lez

Castillo

et al. 2020

Agriculture, Ecosystems & Environment

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“…It suggests that the drought in the 2012 growing season has shaped the CO 2 -C emissions from the soil. The distribution of CO 2 -C with an emission peak in the summer and lower fluxes in the spring and autumn observed in our research correspond to the findings of numerous studies [12,20,24,25]. It seems that soil respiration in most locations has a pronounced seasonal pattern coinciding with periods of active plant growth.…”

Section: Relationship Between Co 2 -C Soil Emissions and Temperature supporting

confidence: 90%

“…It seems that soil respiration in most locations has a pronounced seasonal pattern coinciding with periods of active plant growth. In our study, as a consequence of lower air temperature and absence of root respiration [20,25], the share of soil CO 2 -C emissions recorded during the maize emergence stage was low, and it did not exceed 8.3% of soil CO 2 -C emissions recorded in the study period. The soil CO 2 -C emissions observed during the maize leaves development stages (until 6-7-leaf stage) reached 30.9% of cumulative soil CO 2 -C emissions.…”

Section: Relationship Between Co 2 -C Soil Emissions and Temperature contrasting

confidence: 43%

“…The share of CO 2 -C emissions in this period reached 37.9% of emissions recorded during the study period. Parejra-Sanchez et al [20] recorded the highest CO 2 -C soil emissions during July and August, when maximum maize growth rate occurred. According to Adviento-Borbe et al [25], CO 2 -C fluxes reached the maximum around the silking stage of maize.…”

Section: Relationship Between Co 2 -C Soil Emissions and Temperature mentioning

confidence: 97%

“…On each test date, measurements of CO 2 -C emission from the soil were taken from the same limited areas of the arable field (approximately 10 m 2 ) in four randomly selected locations distributed every approximately 1 m, considered as four replications. Cumulative emissions of CO 2 -C were quantified on a mass basis (i.e., kg C ha −1 ) using the trapezoid rule [20]. Soil samples were collected from the arable layer of the soil.…”

Section: Measurement Descriptionsmentioning

confidence: 99%

See 2 more Smart Citations

CO2 Emissions from Soil Under Fodder Maize Cultivation

Sosulski¹,

Szymańska²,

Szara³

2020

Agronomy

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The paper presents the results of a study aimed at assessing the total respiration of arable soil under maize fodder cultivation in the climate conditions of Central Poland over the dry growing season. The study was carried out between 22 April and 30 September 2012 (24 test dates). Total CO2-C emissions from the soil were measured in situ by means of the chamber method. The measured total CO2-C fluxes showed a high variability over the study period (3.63–302.31, mean 84.58 mg CO2-C m−2 h−1). Cumulative CO2-C soil emissions reached 3214.9 kg CO2-C ha−1 during the maize growing season and 106.8 kg CO2-C ha−1 in the post-harvest month. In the specific weather conditions of the year of the study (summer drought), CO2-C fluxes from the soil were stronger correlated with the soil NO3−-N content than with atmospheric temperature and soil moisture. The relationship between total soil CO2-C emissions and soil NH4+-N content was described by a negative correlation. Intensive CO2-C fluxes from the soil coincided with rapid maize development stages (8–15 leaf stage) and, to a lower extent, with earlier leave development stages. Total CO2-C emissions during the emergence, pre-reproductive and reproductive maize stages and, particularly, in the post-harvest period, were lower. Intensive nitrification of the soil, in dry season such as the one of 2012, could serve as an indicator of high CO2-C emissions from the soil. However, further studies are needed to confirm this finding. Decomposers probably used soil NH4+-N in the organic matter degradation process intensively and could compete with nitrifiers and maize roots for this soil source of mineral nitrogen.

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Soil carbon dioxide emissions in a sorghum field: Row position and growth stage effects

Kuang

Xiao

et al. 2021

Agrosystems Geosci & Env

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Soil carbon dioxide emission (SCE) is known to be impacted by multiple factors including sources of respiration, environmental factors, and crop and soil management practices, yet few reports exist on how crop row position and growth stage affect SCE in sorghum [Sorghum bicolor (L.) Moench] fields. The objective of this study was to examine the effects of row position and growth stage on SCE dynamics in a field under grain and sweet sorghum production in northern Alabama. Soil CO 2 emissions were measured weekly during the growth period using a closed soil CO 2 survey chamber system. The results showed that SCEs increased steadily from approximately 4 μmol CO 2 m-2 s-1 during the vegetative stage and reached maximum values of approximately about 5 μmol CO 2 m-2 s-1 and 6 μmol CO 2 m-2 s-1 for grain sorghum and sweet sorghum, respectively. Soil CO 2 emissions then decreased to approximately 2 μmol CO 2 m-2 s-1 at the maturity and post-maturity periods for both sorghum types. Significant differences in SCE were observed between row positions. Soil CO 2 emissions at the row (R) positions were 19% greater than at interrow (I) positions during the entire growing season under grain sorghum production. Significant difference occurred only during the vegetative stage (SCE at R was 9% greater than at I position) under sweet sorghum production. Additionally, a significantly greater response of SCE to soil temperature (Ts) during the vegetative stage was observed under sweet sorghum production but not grain sorghum production. This study provides evidence that SCE is affected by row position, growth stage, and crop type and suggests that crop row position and growth stage should be taken into consideration for SCE estimation.

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Tillage and nitrogen fertilization in irrigated maize: key practices to reduce soil CO2 and CH4 emissions

Abstract: Està subjecte a una llicència de Reconeixement-NoComercial-SenseObraDerivada 3.

Cited by 44 publications

References 40 publications

Feasibility of stabilised nitrogen fertilisers decreasing greenhouse gas emissions under optimal management in sprinkler irrigated conditions

Feasibility of stabilised nitrogen fertilisers decreasing greenhouse gas emissions under optimal management in sprinkler irrigated conditions

CO2 Emissions from Soil Under Fodder Maize Cultivation

Soil carbon dioxide emissions in a sorghum field: Row position and growth stage effects

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