Zinc fertilizers influence greenhouse gas emissions and nitrifying and denitrifying communities in a non-irrigated arable cropland

Montoya, Mónica Brenes; Castellano‐Hinojosa, Antonio; Vallejo, Antonio; Álvarez, Jose M.; Bedmar, Eulogio J.; Recio, Jaime; Guardia, Guillermo

doi:10.1016/j.geoderma.2018.03.035

Cited by 18 publications

(17 citation statements)

References 69 publications

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“…Heavy metals may be released into the soil through some agricultural practices (e.g. trace element fertilizers, fungicides) and the return of organic materials (Montoya et al., ; Pal et al., ). Livestock manure is an important source of heavy metals, such as zinc (Zn) and copper (Cu) in the soil (Jiachun et al., ; Zhu et al., ), and China produces an estimated 618 billion kg of swine manure annually (Wang et al., ).…”

Section: Introductionmentioning

confidence: 99%

Co‐selection for antibiotic resistance genes is induced in a soil amended with zinc

Yang

Yanpeng

Wang

et al. 2019

Soil Use and Management

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The likelihood of co‐selection for antibiotic resistance induced by heavy metals is a potential threat to human health, however, direct evidence of heavy metal‐induced co‐selection of antibiotic resistance is lacking in soil. By using a metagenomic sequencing approach, zinc (Zn) driven co‐selection of antibiotic resistance genes (ARGs) in soil was investigated through a microcosm experiment where Zn salts were added at different levels. The results showed that the abundance and diversity of ARGs had a tendency to increase along the gradient of increasing Zn contents, with the maximum values recorded in the soil amended with 800 mg Zn kg−1. The abundance of mobile genetic elements (MGEs) such as integrons and insertion sequences was significantly increased by Zn exposure. Network analysis demonstrated significant associations between ARGs and MGEs, suggesting that Zn treatment might enhance the potential for horizontal transfer of ARGs. Furthermore, structural equation models revealed that the types of ARGs were primarily driven by variations in bacterial compositions and Zn exposure, followed by integrons. Thus, these results indicate that added Zn salts considerably changed the diversity, abundance and mobility potential of antibiotic resistance, and imply that application of amendments containing high levels of Zn to soil could be causing the emergence and release of ARGs to the environment, and should be carefully monitored.

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Section: Introductionmentioning

confidence: 99%

Co‐selection for antibiotic resistance genes is induced in a soil amended with zinc

Yang

Yanpeng

Wang

et al. 2019

Soil Use and Management

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“…In this paper, the term ''straw'' refers to the shoot excluding the grains at harvest. Total Zn content in dry matter of the different plant fractions at both sampling times was extracted by wet acidic digestion in a digester (SPB 50-24 with an SPB digital controller, Perkin-Elmer), using the method and the equipment described in Montoya et al (2018).…”

Section: Plant and Soil Samplesmentioning

confidence: 99%

Zinc–nitrogen interaction effect on wheat biofortification and nutrient use efficiency

Montoya

Vallejo

Recio

et al. 2020

J. Plant Nutr. Soil Sci.

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Background: The enhancement of zinc (Zn) concentration in cereal crops without compromising yield is a global challenge with crucial health and food security implications. Aims: To achieve Zn biofortification in wheat through the appropriate management of fertilization with both Zn and nitrogen (N), due to the synergistic effect between them, using natural organic sources of Zn. Methods: We carried out a field experiment using a rainfed winter wheat (Triticum aestivum L.) crop fertilized with four Zn sources (Zn‐sulphate, Zn‐lignosulphonate, Zn‐amino acids and Zn‐gluconate) and three N application rates under semi‐arid conditions. Results: The strategy of increasing the N rate by 50% with respect to the recommended N rate (i.e., 120 kg N ha−1) did not improve either wheat yield or grain Zn‐N concentration. The combined effect of applying natural organic Zn complexes and the recommended N rate tended to increase grain Zn concentrations (by an average of 14%), although this increase was significantly higher when Zn‐sulphate was applied (63%) due to its higher recommended Zn application rate. Natural organic Zn fertilizers achieved the highest grain yields, probably due to the enhancement of N uptake. The natural organic Zn fertilizers resulted in higher Zn utilization efficiency compared with the Zn‐sulphate fertilizer. Conclusions: In calcareous Zn‐deficient soils, our results suggest that Zn–N co‐fertilization involving Zn‐sulphate combined with the recommended N application rate would be advisable for obtaining grain Zn biofortification, while the highest yields can be obtained with the application of natural organic Zn fertilizers.

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“…The highest N utilization values were obtained with applications of the ZnCHE-1.0 and ZnCHE-1.5 treatments. According to several studies (Hu et al 2003;Montoya et al 2018), ethylenediamine-based chelating agents, such as DTPA and EDTA, may act as nitrification inhibitors. Nitrification inhibition caused by heavy metals, such as Zn, has also been addressed in the literature (Kapoor et al 2015).…”

Section: Influence Of Treatment Added On the Efficiency Of Zn Or N Usementioning

confidence: 99%

Zn-DTPA-HEDTA-EDTA Application: a Strategy to Improve the Yield and Plant Quality of a Barley Crop While Reducing the N Application Rate

Almendros

Obrador

Álvarez

et al. 2019

J Soil Sci Plant Nutr

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Over-use of N fertilization has been common in order to obtain the highest possible grain yield. We investigated the efficiency of combining the application of N and ZnCHE (Zn-DTPA-HEDTA-EDTA). Different rates (30, 60, or 90 kg ha −1) and sources [pig slurry(PS) or urea] of N and rates of ZnCHE (0, 0.5, 1, or 1.5 kg ha −1) were applied to a barley crop. Nitrogen fertilization combined with soil Zn applications had a significant interaction on various plant parameters (grain protein concentration, yield, Zn uptake, and N uptake). An application rate of 90 kg N ha −1 seems recommendable to obtain high values for both crop yield and N uptake by the plant. PS application was associated with higher mean grain yield and Zn utilization than urea application, but with lower grain protein concentration. On the other hand, the lowest Zn application rate was sufficient to achieve a high grain yield (> 3200 kg ha −1). Higher Zn rates provided great Zn concentrations in the different parts of the plant. Furthermore, high grain protein concentrations (> 9.6%) were obtained with combinations of N60 or N90 and ZnCHE-1 or ZnCHE-1.5, both for PS and for urea. The application of this synthetic Zn chelate could be recommended as a strategy for reducing the N application rate but still obtaining high grain yield and nutritional value in barley. These effects may have been due not only to Zn application but also to the influence of chelating agents such as DTPA, HEDTA, and EDTA.

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Zinc fertilizers influence greenhouse gas emissions and nitrifying and denitrifying communities in a non-irrigated arable cropland

Cited by 18 publications

References 69 publications

Co‐selection for antibiotic resistance genes is induced in a soil amended with zinc

Co‐selection for antibiotic resistance genes is induced in a soil amended with zinc

Zinc–nitrogen interaction effect on wheat biofortification and nutrient use efficiency

Zn-DTPA-HEDTA-EDTA Application: a Strategy to Improve the Yield and Plant Quality of a Barley Crop While Reducing the N Application Rate

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