Journal
EUROPEAN JOURNAL OF AGRONOMY
Volume 146, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.eja.2023.126809
Keywords
Decision Agriculture; Yield Stability; In-silico simulation; Agricultural Intelligence; Variable Rate N Fertilizer
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Smart agriculture, through the use of information technologies and digital tools, can contribute to food security, reduced resource consumption, and increased profitability. However, the adoption rate of these technologies is still low and varies across different regions. This paper proposes a framework for smart agriculture and digital twins, presents a case study on nitrogen fertilization, and discusses the challenges and future prospects. The study emphasizes the need for optimizing fertilizer input and considering spatial and temporal variabilities. It also highlights the potential benefits of digital twins for predictive analysis and sustainability.
Smart agriculture - i.e., the increasing use of information technologies, sensors, autonomous vehicles, data an-alytics, predictive modelling, and other digital technologies related to agricultural activities - has been strongly argued for as a means to significantly contribute to increased food security, reduced water consumption, reduced fertilizer and pesticide input, and increased farm profitability. Despite this, the adoption rate of smart agricul-tural technologies is still low and varies significantly according to the specific technology and the geographical area considered. The goals of this paper are to: (1) propose a conceptual framework for smart agriculture and digital twins, which takes into account the needs and characteristics of the farms; (2) present the application of the proposed conceptual framework as a case study; and (3) shed light on the challenges of and the future perspectives on smart agriculture. We first propose a framework for the design of farm information systems consisting of four key phases (i.e., data collection, data processing, data analysis and evaluation, and information use) based on the infological approach. We then apply the framework to present and discuss a field application of smart agriculture and digital twins on crop nitrogen (N) fertilization. The case study, along with the cited literature, highlights the need to specify the optimal N fertilizer input as well as defining the spatial variability of the land area, the soil characteristics and crop yield, and the integration of these with temporal variability. Finally, we discuss challenges and future perspectives, with particular focus on geographical areas characterized by small average farm size. We argue that, thanks to digital twins, the wide set of data collected can enable predictive (and stability) analyses that if implemented can benefit the farmer and the environmental, social, and economic sustainability of the agricultural system.
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