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Spatial Variations of Vegetation Index from Remote Sensing Linked to Soil Colloidal Status

Author

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  • Marco Bascietto

    (Consiglio per la Ricerca in Agricoltura e L’analisi dell’Economia Agraria (CREA)-Centro di Ricerca Ingegneria e Trasformazioni Agroalimentari, CREA-IT, via della Pascolare 16, 00015 Monterotondo, Italy)

  • Enrico Santangelo

    (Consiglio per la Ricerca in Agricoltura e L’analisi dell’Economia Agraria (CREA)-Centro di Ricerca Ingegneria e Trasformazioni Agroalimentari, CREA-IT, via della Pascolare 16, 00015 Monterotondo, Italy)

  • Claudio Beni

    (Consiglio per la Ricerca in Agricoltura e L’analisi dell’Economia Agraria (CREA)-Centro di Ricerca Ingegneria e Trasformazioni Agroalimentari, CREA-IT, via della Pascolare 16, 00015 Monterotondo, Italy)

Abstract

Recent decades have seen a progressive degradation of soils owing to an intensification of farming practices (weeding and high trafficking), increasing use of pesticides and fertilizers, mainly nitrogen, resulting in a steady decline in soil organic matter, a key component to maintain soil fertility. The work has coupled the normalized difference vegetation index (NDVI) of wheat cultivation in Central Italy to soil properties where the wheat was grown to identify the properties linked to within-field variability in productivity. NDVI was assessed through Copernicus Sentinel-2 (S-2) data during the wheat anthesis phase. The main outcome showed a significant correlation of NDVI variability to soil colloidal status and to the relative quantity in the exchange complex of the Ca 2 + ions. No relationship emerged between NDVI and soil macronutrients (nitrogen, phosphorus, and potassium) concentration. The work suggested that such elements (nitrogen, especially) should not be provided solely considering the vegetation index spatial variations. Rational and sustainable management of soil fertility requires the integration of the NDVI data with the whole complex of soil physical/chemical status. In this way, the identification of the real key factors of fertility will avoid the negative impact of overfertilization. As an example, a fertilization plan was simulated for the sunflower–wheat sequence. The results showed that in the study area additional supplies of N and K would be unnecessary.

Suggested Citation

  • Marco Bascietto & Enrico Santangelo & Claudio Beni, 2021. "Spatial Variations of Vegetation Index from Remote Sensing Linked to Soil Colloidal Status," Land, MDPI, vol. 10(1), pages 1-15, January.
    • Handle: RePEc:gam:jlands:v:10:y:2021:i:1:p:80-:d:481736
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    References listed on IDEAS

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    1. Tiziano Gomiero, 2016. "Soil Degradation, Land Scarcity and Food Security: Reviewing a Complex Challenge," Sustainability, MDPI, vol. 8(3), pages 1-41, March.
    2. Ceglar, A. & van der Wijngaart, R. & de Wit, A. & Lecerf, R. & Boogaard, H. & Seguini, L. & van den Berg, M. & Toreti, A. & Zampieri, M. & Fumagalli, D. & Baruth, B., 2019. "Improving WOFOST model to simulate winter wheat phenology in Europe: Evaluation and effects on yield," Agricultural Systems, Elsevier, vol. 168(C), pages 168-180.
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    Cited by:

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    2. Giulio Sperandio & Alessandro Suardi & Andrea Acampora & Vincenzo Civitarese, 2024. "Eco-Efficiency of Pellet Production from Dedicated Poplar Plantations," Energies, MDPI, vol. 17(13), pages 1-23, June.
    3. Eleonora De Santis & Alberto de Iudicibus & Francesca Lecce & Massimiliano De Mei & Francesco Petrazzuolo & Angelo Del Giudice & Monica Carnevale & Francesco Gallucci & Claudio Beni & Alberto Assirell, 2024. "A Multidisciplinary Approach for the Development of a Supply Chain in Biomass Conversion of Agrifood Waste Mediated by Larvae of Hermetia illucens L.: From Rearing to By-Product Exploitation," Agriculture, MDPI, vol. 14(7), pages 1-25, June.
    4. Enrico Santangelo & Claudio Beni & Loredana Oreti & Adriano Palma & Marco Bascietto, 2023. "Vulnerability of Wheat Crops to Flooding Outweighs Benefits from Precision Farming and Agroecology Practices: A Case Study in Central Italy," Land, MDPI, vol. 12(4), pages 1-17, April.

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