Effects of the nitrification inhibitor nitrapyrin and mulch on N2O emission and fertilizer use efficiency using 15N tracing techniques

Dawar, Khadim; Khan, Ahtesham Ullah; Sardar, Kamil; Fahad, Shah; Saud, Shah; Datta, Rahul; Danish, Subhan

doi:10.1016/j.scitotenv.2020.143739

Cited by 25 publications

(11 citation statements)

References 59 publications

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“…The inhibition effect was stronger at the early stage than at the later stage (Figure ), which might be due to the degradation of the NI in the soil over time (Wolt, 2000). Our findings are consistent with previous reports by Cui et al (2013), Dawar et al (2021) and Tao et al (2021), which demonstrated that the average emission rate of N 2 O in fertilized soils can be reduced by nitrapyrin. The N + NI treatment strongly increased the concentration of NH 4 + ‐N (Figure 1), as NI reserved NH 4 + by blocking ammonia monooxygenase enzyme (Abbasi & Adams 2000; Majumdar & Gupta 2000; Wolt, 2000), and thereby decreased the substrate of the denitrification process and thereafter N 2 O emissions from soils.…”

Section: Discussionsupporting

confidence: 94%

Effect of straw incorporation and nitrification inhibitor on nitrous oxide emission in three cropland soils

Zhang

Liu

Wang

et al. 2022

J of Sust Agri & Env

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Introduction Nitrification inhibitors and straw incorporation are used to reduce microbial mediated nitrogen (N) losses, thereby increasing N use efficiency (NUE) in cropland soil, but their effects on nitrous oxide (N2O) emission across different soil types and the underlying molecular mechanisms remain less understood. Materials and Methods In this study, we investigated how nitrification inhibitor nitrapyrin and straw incorporation affected soil N balance, N2O emission, nitrifiers and denitrifiers in three cropland soils (black, fluvo‐aquic and red soils). Results Compared with fertilization‐only treatment (N), nitrapyrin addition increased ammonium, while it decreased nitrate concentration in all soils; however, the performance of straw incorporation was less significant. Nitrapyrin decreased N2O emission only in the fluvo‐aquic soil, while straw incorporation strongly increased N2O emission in the red soil. Terminal restriction fragment length polymorphism analysis revealed that the denitrifier community was distinct across the three soils, but not strongly structured by nitrapyrin or straw incorporation. Compared with the N treatment, straw incorporation and nitrapyrin increased nosZ gene abundance only in the black soil. Structural equational modelling further confirmed that, after accounting for different soil properties, straw incorporation significantly increased N2O emission from black and red soils, and a decrease in nosZ gene abundance was the main biological factor for increased N2O emission in red soil. Conclusion Taken together, our work provides new knowledge that the performance of nitrification inhibitor and straw incorporation on N2O emission is soil type‐dependent, and management practices should be used as per soil type to balance NUE and N2O emission.

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Section: Discussionsupporting

confidence: 94%

Effect of straw incorporation and nitrification inhibitor on nitrous oxide emission in three cropland soils

Zhang

Liu

Wang

et al. 2022

J of Sust Agri & Env

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“…The higher relative chlorophyll content obtained in nitrapyrin-treated maize (NP) is explained by the fact that maize increases its yield due to the accessibility of different N forms in the soil provided by nitrapyrin [57]. Several prior studies have already supported the authors' findings as nitrapyrin increases plant chlorophyll by providing nutrients and increasing photosynthesis capacity; therefore, it increases leaf SPAD values which indicate the N status of maize [58][59][60]. It is commonly known that the photosynthetic activity of maize is closely linked to its general health conditions [32,61].…”

Section: Discussionmentioning

confidence: 87%

Examination of the Productivity and Physiological Responses of Maize (Zea mays L.) to Nitrapyrin and Foliar Fertilizer Treatments

Rácz

Szőke

Tóth

et al. 2021

Plants

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Nutrient stress has been known as the main limiting factor for maize growth and yield. Nitrapyrin, as a nitrification inhibitor—which reduces nitrogen loss—and foliar fertilizer treatments have been successfully used to enhance the efficiency of nutrient utilization, however, the impacts of these two technologies on physiological development, enzymatic responses, and productivity of maize are poorly studied. In this paper, the concentration of each stress indicator, such as contents of proline, malondialdehyde (MDA), relative chlorophyll, photosynthetic pigments, and the activity of superoxide dismutase (SOD) were measured in maize leaf tissues. In addition, biomass growth, as well as quantitative and qualitative parameters of yield production were examined. Results confirm the enhancing impact of nitrapyrin on the nitrogen use of maize. Furthermore, lower activity of proline, MDA, SOD, as well as higher photosynthetic activity were shown in maize with a more favorable nutrient supply due to nitrapyrin and foliar fertilizer treatments. The obtained findings draw attention to the future practical relevance of these technologies that can be implemented to enhance the physiological development and productivity of maize. However, this paper also highlights the importance of irrigation, as nutrient uptake from soil by the crops decreases during periods of drought.

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“… 115 New synthetic N fertilizer types, such as slow- and control-release N fertilizers, and N fertilizers with urease and nitrification inhibitors, need to be developed to enhance N use efficiency. 116 Better cropping systems, fertilization, and irrigation practices, and the use of advanced digital agriculture technologies, such as multi-sensor drone technology to allow farmers to manage crops, soil, fertilization, and irrigation more effectively and precisely, can reduce N fertilizer input and N 2 O emissions. 117 , 118 For example, intermittent irrigation can substantially reduce the production of CH 4 and increase CH 4 oxidation, and thus can be an important choice to mitigate CH 4 emissions from rice fields.…”

Section: Technologies For Enhanced Carbon Sink In Global Ecosystemsmentioning

confidence: 99%

Technologies and perspectives for achieving carbon neutrality

et al. 2021

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Global development has been heavily reliant on the overexploitation of natural resources since the Industrial Revolution. With the extensive use of fossil fuels, deforestation, and other forms of land-use change, anthropogenic activities have contributed to the ever-increasing concentrations of greenhouse gases (GHGs) in the atmosphere, causing global climate change. In response to the worsening global climate change, achieving carbon neutrality by 2050 is the most pressing task on the planet. To this end, it is of utmost importance and a significant challenge to reform the current production systems to reduce GHG emissions and promote the capture of CO 2 from the atmosphere. Herein, we review innovative technologies that offer solutions achieving carbon (C) neutrality and sustainable development, including those for renewable energy production, food system transformation, waste valorization, C sink conservation, and C-negative manufacturing. The wealth of knowledge disseminated in this review could inspire the global community and drive the further development of innovative technologies to mitigate climate change and sustainably support human activities.

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Effects of the nitrification inhibitor nitrapyrin and mulch on N2O emission and fertilizer use efficiency using 15N tracing techniques

Cited by 25 publications

References 59 publications

Effect of straw incorporation and nitrification inhibitor on nitrous oxide emission in three cropland soils

Effect of straw incorporation and nitrification inhibitor on nitrous oxide emission in three cropland soils

Examination of the Productivity and Physiological Responses of Maize (Zea mays L.) to Nitrapyrin and Foliar Fertilizer Treatments

Technologies and perspectives for achieving carbon neutrality

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