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Farming technologies and food yields in Pakistan

                 Table 1. List of variables
                 Variables        Symbol/      Measurement       Proxy variable Rationale               Data source
                                  Abbreviation
                 Cereal crop yield  CCY        Tons per hectare  N/A           Direct measure of        World Bank 45
                                                                               agricultural productivity
                                                                               impacted by smart
                                                                               technologies and sustainable
                                                                               practices
                 Precision        PAT          Number of tractors  Automated   Automation level of      World Bank 45
                 agriculture                                     machinery     agricultural machinery,
                 technology                                      deployment    including autonomous
                                                                               tractors, for precise planting,
                                                                               harvesting, and other tasks
                 Weather condition  TEMP       Centigrade        Average       Weather elements such as   CCKP 46
                                                                 temperature   temperature and precipitation
                                                                               affect agricultural outcomes
                 Agricultural     AGRI         Constant 2015 USD N/A           Reflects the efficiency   World Bank 45
                 value-added                                                   of labor utilization in
                                                                               agriculture, influenced by
                                                                               smart technologies and
                                                                               sustainable practices
                 Environmental    CH 4         Metric tons       CH  emissions  CH  emissions from      World Bank 45
                                                                                  4
                                                                    4
                 factors                                                       agricultural activities
                                                                               contribute to global warming
                                  N O                            N O emissions  N O emissions from      World Bank 45
                                   2
                                                                  2
                                                                                 2
                                                                               agricultural activities
                                                                               contribute to global warming
                                                                               and ozone depletion
                 Data analytics and  DAML      % of GDP          R&D           Investments in R&D       World Bank 45
                 machine learning                                expenditures  activities aimed at improving
                                                                               agricultural processes and
                                                                               outcomes
                 Farmers’ adoption  FAR        % of population   Rural internet   The rate of farmers   World Bank 45
                 rate                                            users         adopting smart agricultural
                                                                               technologies and practices
                 Abbreviations: CH : Methane; GDP: Gross domestic product; N/A: Not available; N O: Nitrous oxide; R&D: Research and development.
                              4                                               2
                The dependent variable is CCY, measured in tons per   to digital agricultural solutions and market data, rural
                hectare. Tractors represent PAT, which automates and   internet  connection  is a  good measure  of farmers’
                mechanizes agriculture. The total monthly precipitation   adoption  rate.  The  variables  were  collected  from
                (TEMP) recorder  tracks  meteorological  conditions  to   reliable international sources, including the World Bank
                account for climate change’s influence on agriculture.   and  the Climate  Change  Knowledge  Portal  (CCKP),
                The  AGRI in constant  2015 USD measures  how       and monitored yearly from 1990 to 2022. The dataset
                successfully the agriculture  sector adapts to new   was processed for ARDL modeling to ensure consistent
                technology.  Two major  greenhouse  gas emissions,   size, interpretation, temporal coverage, and stationarity.
                CH  and N O, indicate  environmental  stress. Rice   All variables were checked for unit roots and adjusted
                   4
                           2
                and livestock farming produce waste gases that may   for uniformity. The model’s eight core variables offer a
                threaten  sustainability. Data analytics  and machine   solid foundation for studying agricultural productivity
                learning (DAML) were measured in the percentage of   and the environmental-technological nexus.
                gross domestic product (GDP) dedicated to R&D that     The present study employed the ARDL bounds testing
                advances agricultural technology. Due to its access   approach  to  analyze  the  relationship  between  digital



                Volume 22 Issue 3 (2025)                       109                           doi: 10.36922/AJWEP025130096
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