Fertilizer type influences tomato yield and soil N2O emissions

Luca Vitale, Franca Polimeno, Lucia Ottaiano, Giuseppe Maglione, Anna Tedeschi, Mauro Mori, Anna De Marco, Paul Di Tommasi and Vincenzo Magliulo
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Luca Vitale: National Research Council, Department of Biology, Agriculture and Food Sciences, Institute for Agricultural and Forestry Systems in the Mediterranean, Ercolano, Italy
Franca Polimeno: National Research Council, Department of Biology, Agriculture and Food Sciences, Institute for Animal Production System in Mediterranean Environment, Naples, Italy
Lucia Ottaiano: University of Naples Federico II, Department of Agronomy, Portici, Italy
Giuseppe Maglione: National Research Council, Department of Biology, Agriculture and Food Sciences, Institute for Animal Production System in Mediterranean Environment, Naples, Italy
Anna Tedeschi: National Research Council, Department of Biology, Agriculture and Food Sciences, Institute for Agricultural and Forestry Systems in the Mediterranean, Ercolano, Italy
Mauro Mori: University of Naples Federico II, Department of Agronomy, Portici, Italy
Anna De Marco: University of Naples Federico II, Department of Biology, Naples, Italy
Paul Di Tommasi: National Research Council, Department of Biology, Agriculture and Food Sciences, Institute for Agricultural and Forestry Systems in the Mediterranean, Ercolano, Italy
Vincenzo Magliulo: National Research Council, Department of Biology, Agriculture and Food Sciences, Institute for Agricultural and Forestry Systems in the Mediterranean, Ercolano, Italy

Plant, Soil and Environment, 2017, vol. 63, issue 3, 105-110

Abstract: Improvements in crop management for a more sustainable agriculture are fundamental to reduce environmental impacts of cropland and to mitigate effects on global climate change. In this study three fertilization types - ammonium nitrate (control); mineral fertilizer added with a nitrification inhibitor (3,4-dimethylpyrazole phosphate (DMPP)), and an organo-mineral fertilizer (OM) - were tested on a tomato crop in order to evaluate effects both on crop production and soil N2O emissions. Plants grown under OM fertilization had a greater relative growth rate compared to mineral fertilization, due to a higher net assimilation rate, which was related to a greater light interception rather than to a higher photosynthetic efficiency. OM fertilization determined the highest fruit production and lower soil N2O fluxes compared to NH4NO3, although the lowest soil N2O fluxes were found in response to mineral fertilizer added with a nitrification inhibitor. It can be concluded that organo-mineral fertilizer is a better nutrient source compared to mineral fertilizers able to improve crop yield and to mitigate soil N2O emission.

Keywords: plant growth; nitrous oxide; emission factor; Mediterranean climate (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:63:y:2017:i:3:id:678-2016-pse

DOI: 10.17221/678/2016-PSE

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