Soil and temperature effects on nitrification and denitrification modified N2O mitigation by 3,4-dimethylpyrazole phosphate

Nair, Drishya; Ábalos, Diego; Philippot, Laurent; Bru, David; Mateo‐Marín, Noemí; Petersen, Søren O.

doi:10.1016/j.soilbio.2021.108224

Cited by 35 publications

(9 citation statements)

References 72 publications

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“…Nonetheless, BNI release increased in sorghum after the addition of ammonium-based fertilizer, inhibiting AOB growth at 20 DPF, and this occurred despite a lack of complete inhibition of nitrification during the first 7 DPF. The fact that the N 2 O emission peak in the AS treatment was reduced before 7 DPF, while the N 2 O emission peaks of fertilized treatments without nitrification inhibitors lasted more than 15 days [51,73] is in line with this hypothesis. During the rest of the experiment, sorghum exudates were able to maintain low N 2 O emissions similar to the AS + D treatment, which showed great efficiency in reducing them, as described in other studies [74][75][76].…”

Section: Discussionsupporting

confidence: 71%

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Biological and synthetic approaches to inhibiting nitrification in non-tilled Mediterranean soils

Bozal-Leorri

Corrochano-Monsalve

Arregui

et al. 2021

Chem. Biol. Technol. Agric.

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Background The increasing demand for food production has led to a tenfold increase in nitrogen (N) fertilizer use since the Green Revolution. Nowadays, agricultural soils have been turned into high-nitrifying environments that increase N pollution. To decrease N losses, synthetic nitrification inhibitors (SNIs) such as 3,4-dimethylpyrazole phosphate (DMPP) have been developed. However, SNIs are not widely adopted by farmers due to their biologically limited stability and soil mobility. On the other hand, allelopathic substances from root exudates from crops such as sorghum are known for their activity as biological nitrification inhibitors (BNIs). These substances are released directly into the rhizosphere. Nevertheless, BNI exudation could be modified or even suppressed if crop development is affected. In this work, we compare the performance of biological (sorghum crop) and synthetic (DMPP) nitrification inhibitors in field conditions. Results Sorghum crop BNIs and DMPP prevented an increase in the abundance of ammonia-oxidizing bacteria (AOB) without affecting the total bacterial abundance. Both nitrification inhibitors maintained similar soil NH4+ content, but at 30 days post-fertilization (DPF), the sorghum BNIs resulted in higher soil NO3− content than DMPP. Even so, these inhibitors managed to reduce 64% and 96%, respectively, of the NO3−-N/NH4+-N ratio compared to the control treatment. Similar to soil mineral N, there were no differences in leaf δ15N values between the two nitrification inhibitors, yet at 30 DPF, δ15N values from sorghum BNI were more positive than those of DMPP. N2O emissions from DMPP-treated soil were low throughout the experiment. Nevertheless, while sorghum BNIs also maintained low N2O emissions, they were associated with a substantial N2O emission peak at 3 DPF that lasted until 7 DPF. Conclusions Our results indicate that while sorghum root exudates can reduce nitrification in field soil, even at the same efficiency as DMPP for a certain amount of time, they are not able to prevent the N pollution derived from N fertilization as DMPP does during the entire experiment. Graphic Abstract

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Section: Discussionsupporting

confidence: 71%

“…This growth can be avoided by applying SNIs such as DMPP, and the AOB population size is maintained at the level of unfertilized soils (Fig. 1b) [50,51]. Furthermore, the objective of BNIs is to suppress soil nitrification by decreasing the ammonia-oxidizing microorganisms' populations [52].…”

Section: Discussionmentioning

confidence: 99%

Biological and synthetic approaches to inhibiting nitrification in non-tilled Mediterranean soils

Bozal-Leorri

Corrochano-Monsalve

Arregui

et al. 2021

Chem. Biol. Technol. Agric.

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“…Under the PC1 condition in spring, the effects of the DIPF and MSI treatments were similar, whereas the effects of the MSPF treatment were significantly different from those of the other treatments. Under the PC2 condition, the effects of the DIPF and MSPF treatments were similar, whereas the [35,36]. The results of this study showed that the MSPF treatment could significantly increase the soil water content at depths of 0-40 cm during spring and improve the uniformity of soil water in the 0-80 cm soil layer (Figure 2).…”

Section: Effects Of Irrigation Strategy and Plastic Film Mulching On ...mentioning

confidence: 65%

Effects of Irrigation Strategy and Plastic Film Mulching on Soil N2O Emissions and Fruit Yields of Greenhouse Tomato

Zhang

Zhen-guang

et al. 2022

Agriculture

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Agriculture is a major source of global greenhouse gas emissions. Approximately 1/3 of vegetables in China are produced in greenhouses. However, the effects of different irrigation strategies and plastic film (PF) mulching combinations on N2O emissions and tomato fruit yields in greenhouses are unclear. The aims of this study were to explore the effects of micro-sprinkler irrigation under plastic film (MSPF), drip irrigation under plastic film (DIPF) and micro-sprinkler irrigation (MSI) on the soil nutrients, enzyme activity, nirS-type denitrifying bacterial community, N2O emissions and fruit yields of tomato. The results showed that MSPF could improve the uniformity of soil water distribution and surface (0–40 cm) soil water content. Film mulching could increase soil temperature at depths of 5–25 cm. Both MSPF and DIPF increased microbial nitrogen, promoted the activity of rhizosphere soil urease and leucine aminopeptidase, changed the community of denitrifying bacteria, accelerated the turnover of soil nutrients and improved yield and water use efficiency. PF mulching had a greater impact on the nirS-type denitrifying bacterial community when compared to irrigation strategy. We conclude that MSPF can be used to configure commercially available installation and operation. The comprehensive benefit of MSPF treatment is that it is more profitable than that of DIPF.

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“…Corn responses to N fertilization depend on N availability and its uptake by crops. Nitrogen transformations depend on a wide range of factors and processes such as microbial activity, microbe-derived nitrification and denitrification processes, and soil characteristics (texture, pH, organic matter, and electrical conductivity) (Nair et al, 2021). Management practices like tillage operations, amount and method of irrigation, time, source and method of N fertilizer application, and climatic conditions like temperature, moisture, and wind speed can all strongly affect N availability in the soil (Halvorson et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Contrasting corn yield responses to nitrogen fertilization in southeast coastal plain soils

Raza

Farmaha

2022

Front. Environ. Sci.

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Nitrogen (N) fertilizer recommendations based on yield goals are common and do not consider variability in soil N supply between fields. Nitrogen transformations in soils are dynamic and may vary widely among different soils, climates, cropping systems, and management practices, making it difficult to provide general N recommendation rates for a region, state, or even a county. To optimize N fertilization rates for corn (Zea mays L.), eight field trials were conducted on different fields at the Edisto Research and Education Center of Clemson University in 2018–2021. The soils varied in pH, inorganic N, management practices (irrigate, dryland, cover, and no-cover crop), and climatic conditions (temperature and precipitation). Six nitrogen fertilizer rate treatments were used during 2018 and 2019, eight in 2020, and five in 2021 trials. Test sites were different in each year except in 2021 in which trials were conducted on the same site but were differentiated by multi-species and no-cover crop treatments. Nitrogen fertilizer was applied as a complete one-time dose in all trials in 2018 and 2021 and in several splits in 2019 and 2020. The corn yields generally increased with N fertilization rates; however, a strong variation of up to 4–11 Mg ha−1 existed at each N level among different fields. Based on yield responses, the eight field trials were divided into two groups: low-yielding and high-yielding sites. The low-yielding sites on average produced 3.8 Mg ha−1 of corn, which was 137% less than the corn harvested from high-yielding sites (9.0 Mg ha−1). The agronomic N use efficiency (AgNUE) in high-yielding sites was almost double (32.68 kg kg−1 N) compared to low-yielding sites (17.16 kg kg−1 N), and the differences were even wider for partial factor productivity of N (PFPN). The economic optimum N rate (EONR) remained below 300 kg N ha−1 for all sites with no marked difference among sites. However, relative yield (ratio of corn yield in unfertilized control to the N level giving the highest yield) was comparatively lower in low-yielding sites (29.45%). Baseline inorganic N, pH, and precipitation were identified as the major factors controlling corn yield responses to N fertilization. The yield variations driven by several factors make N management challenging, indicating the need for site-specific N management for corn in the southeast United States.

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Soil and temperature effects on nitrification and denitrification modified N2O mitigation by 3,4-dimethylpyrazole phosphate

Cited by 35 publications

References 72 publications

Biological and synthetic approaches to inhibiting nitrification in non-tilled Mediterranean soils

Biological and synthetic approaches to inhibiting nitrification in non-tilled Mediterranean soils

Effects of Irrigation Strategy and Plastic Film Mulching on Soil N2O Emissions and Fruit Yields of Greenhouse Tomato

Contrasting corn yield responses to nitrogen fertilization in southeast coastal plain soils

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