Effect of inhibitors and fertigation strategies on GHG emissions, NO fluxes and yield in irrigated maize

Guardia, Guillermo; Cangani, Max T.; Andreu, Gemma; Sanz-Cobeña, Alberto; García‐Marco, Sonia; Álvarez, Jose M.; Recio, Jaime; Vallejo, Antonio

doi:10.1016/j.fcr.2017.01.009

Cited by 91 publications

(46 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sprinkler irrigation significantly reduces N 2 O emissions. The EI under the application of N, P, and K compound fertilizer and urea for SI determined in our study (0.51 kg t −1 ) is lower than that determined under urea application for DI by Guardia et al (2017) (1.0 kg t −1 ) [18]. In the present study, SI increased potato yield to a greater degree than it reduced N 2 O emissions.…”

Section: Potential Of Mitigating N 2 O Emissions Using the Two Irrigacontrasting

confidence: 74%

“…Although the influences of moisture on crop growth have been very well recorded in SI and FI systems [16,17], there have been few reports in previous studies on the effects of different soil wetting patterns on soil N 2 O emissions. The fertigation treatments that used the water pressure as a driving force to suck up the fertilizers from the tank and mix them homogeneously with the irrigation water have been shown to lead to reductions in N 2 O emissions in irrigated maize cropping areas with respect to SI of 80% and 78% for calcium ammonium nitrate and urea fertigation, respectively [18]. The potential of irrigation technologies to mitigate soil N 2 O mitigation from drip irrigation (DI) is higher (even above 50%) than FI during a melon crop season [19,20].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sprinkler Irrigation Is Effective in Reducing Nitrous Oxide Emissions from a Potato Field in an Arid Region: A Two-Year Field Experiment

Yuehu

Feng

et al. 2019

Atmosphere

View full text Add to dashboard Cite

In arid and semi-arid regions, water-saving irrigation is the primary mode of local agricultural production. Since the chemical fertilizer is the principal source of nitrous oxide (N 2 O) emissions, we present results from a two-year (2016-2017) field experiment on a potato field to verify the general influence of water-saving irrigation on N 2 O emissions. A split-plot experiment was established with two irrigation systems and two fertilizer treatments, which give a total of four treatments. Two different irrigation systems were investigated: (i) flood irrigation with nitrogen fertilizer (NF-FI) combined with a control without any fertilizer (C-FI) and (ii) overhead sprinkler irrigation with a nitrogen fertilizer (NF-SI) accompanied with a control without any fertilizer (C-SI). The N 2 O emissions of the fertilizer treatment were greater than those of the control under each irrigation system. In plots where the fertilizers were applied, using overhead sprinkler irrigation reduced the average cumulative N 2 O emissions between 40.72% and 59.65% compared with flood irrigation. This was mainly due to the lower amount of water applied and the lower availability of NO 3 − -N and NH 4 + -N of soil associated with an overhead sprinkler irrigation. This work shows that the overhead sprinkler irrigation is an effective strategy to use to save water and mitigate emissions of the atmospheric pollutants N 2 O in comparison to flood irrigation.

show abstract

Section: Potential Of Mitigating N 2 O Emissions Using the Two Irrigacontrasting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Sprinkler Irrigation Is Effective in Reducing Nitrous Oxide Emissions from a Potato Field in an Arid Region: A Two-Year Field Experiment

Yuehu

Feng

et al. 2019

Atmosphere

View full text Add to dashboard Cite

show abstract

“…(2015). In many studies, measurements of N 2 O emissions (Guardia et al., 2017) tend to be underestimated and to have high variations because they focus only on the maize growing season and not on year‐round crops or on crop rotation involving wheat and maize. Our study indicates that maize fields emit more N 2 O than wheat fields.…”

Section: Discussionmentioning

confidence: 99%

Greenhouse gas emissions and carbon footprint under gravel mulching on China's Loess Plateau

Wang

Zhang

et al. 2020

Agronomy Journal

View full text Add to dashboard Cite

Gravel mulching technology has been widely verified as an effective solution to reduce evaporation and improve crop production on China's Loess Plateau, but its impacts on greenhouse gas (GHG) emissions have not been well documented. This study examined the quantification of the overall GHG emissions via estimating global warming potential (GWP), GHG intensity (GHGI), C footprint (CF), and C intensity (CI) with varying experimental treatments. A 2-yr consecutive wheat-maize rotation field experiment was conducted through monitoring GHG emissions using a closedchamber method with four treatments: CK (control with no mulching), WCK (CK plus 50 mm irrigation), GM (CK plus gravel mulching), and WGM (WCK plus GM).Compared with the CK, gravel mulching significantly decreased soil CO 2 emissions and increased soil CH 4 uptake over both cycles, although patterns of soil N 2 O emissions were controversial. Mixed effects of gravel mulching and irrigation significantly minimized the GWP over both cycles. Compared with the CK, annual GHGI in the WCK, GM, and WGM treatments dramatically decreased by 35.1, 53.7, and 55.9%, respectively, over Cycle 1 and by 16.7, 19.6, and 37.2%, respectively, over Cycle 2. The average CFs in the WCK, GM, and WGM treatments over both cycles were 4.4, 35.0, and 58.7% lower than in the CK, respectively. Gravel mulching had no significant effect on the CI during Cycle 1 but did have a significant effect during Cycle 2. Thus, gravel mulching is a recommended practice to mitigate GHG emissions and enhance the crop productivity on the Loess Plateau of China.

show abstract

“…Application of NBPT has been proved efective in reducing pasture soil urease activity and mitigating ammonia volatilization [58,59]. The combination of nitriication inhibitor and NBPT could also decrease the yield-scaled N 2 O emissions relative to treatments only with fertilizer in banana plantations [56].…”

Section: Chemical Nitriication Inhibitorsmentioning

confidence: 99%

“…To maintain the eiciency of nitriication inhibitors, only several N fertilizers could be widely used with nitriication inhibitors. Due to higher cost of theses fertilizers, wide adoption in agricultural practice became more diicult [59]. Recently, new compounds with higher nitriication inhibitor eiciencies have been developed, such as 3,4-dimethylpyrazole succinic (DMPSA), which is more stable when applied combined with other basic fertilizers (e.g., calcium ammonium nitrate) at basic conditions [54,59].…”

Section: Chemical Nitriication Inhibitorsmentioning

confidence: 99%

Nitrogen Transformations Associated with N2O Emissions in Agricultural Soils

Zhang¹,

Liu²

2018

Nitrogen in Agriculture - Updates

View full text Add to dashboard Cite

Nitrogen (N) is one of the most important plant nutrient, and its availability and transformations are vital for net primary production. Soil N transformations include mineralization, nitriication and denitriication processes. Nitrogen mineralization transforms organic N into inorganic N, providing available N for crops. Both nitriication and denitriication are microbe-driven processes associated with nitrous oxide (N 2 O) emissions. Nitriication inhibitors have been demonstrated to be useful in decreasing soil N 2 O emissions, including the application of nitriication inhibitors, such as dicyandiamide (DCD) and 3,4-dimethylpyrazole phosphate (DMPP). Recently, biological nitriication inhibitors have also atracted researchers' atention, which may be more environment-friendly. In addition, biochar commonly used as soil ameliorant to improve soil quality and C sequestration could also mitigate soil N 2 O emissions. Once all efective strategies would be widely implemented, more environment-friendly agriculture could be expected.

show abstract

Effect of inhibitors and fertigation strategies on GHG emissions, NO fluxes and yield in irrigated maize

Cited by 91 publications

References 38 publications

Sprinkler Irrigation Is Effective in Reducing Nitrous Oxide Emissions from a Potato Field in an Arid Region: A Two-Year Field Experiment

Sprinkler Irrigation Is Effective in Reducing Nitrous Oxide Emissions from a Potato Field in an Arid Region: A Two-Year Field Experiment

Greenhouse gas emissions and carbon footprint under gravel mulching on China's Loess Plateau

Nitrogen Transformations Associated with N2O Emissions in Agricultural Soils

Contact Info

Product

Resources

About