## 3 Results and Discussions  
The most important and fundamental datum for the management of plastics involves the types of polymer used. From the survey and interviews, it emerged that films and sheets consist of:  
* High-density polyethylene (PE-HD);
* Low-density polyethylene (PE-LD);
* Polyvinyl chloride (PVC). Demonstrating the need to activate intelligent and geospatial management of plastics--most of the interviewees did not have a strategy for the storage of materials and, therefore, disposal was not organized. Waste management is a central issue in all works concerning plastic pollution in rural areas, so it is increasingly necessary to study and develop tools and methodologies to address these problems [38]. Interviews were crucial because they allowed us to estimate the number of plastics that were impossible to detect remotely (via satellite or orthophotos) especially given their size, such as irrigation pipes or mulch, which, with the medium-resolution images commonly used for APW estimation [25; 39], were impossible to classify. That being said, the analysis focused only on those crops for which it was possible to retrieve data from the sample of interviewees; therefore, the analysis may be considered only from a methodological point of view, since it does not yet include all crops grown in Italy. The calculated potential of APW represents only a proportion of the total agricultural plastic waste produced in Italy. This is because the flow of plastic products within the agricultural market is too scattered and, therefore, available data are extremely dispersed and often divergent. Once the GIS project is set up and the data are connected in.CSV format, it is possible to extrapolate all of the necessary data for a detailed analysis and for all of the following operations that can be useful for hypothetical waste management planning at the local and/or provincial level [40]. The first result concerns the calculation of the areas cultivated with the crops examined in Italy in the year of analysis [31]. In percentage terms, the most important crop that emerged from the ISTAT database was open-air fennel, which represented 28% of the total (Table 3). Therefore, based only on the chosen crops under examination, the APC coeff was calculated for each plastic product considered (Table 4) and added up to obtain the total (APCoff_tot). This value indicates the kg of plastic used each year in each m\({}^{2}\) of the crop. Since the value of the cultivated area is in hectares and the APC coeff is relative to m\({}^{2}\), a conversion was necessary. The complete scheme of individual plastic structure data for each crop is shown in Appendix A (Table A1). From the APC coeff calculation, it emerges that the crops with the highest use of plastic recorded are melons and watermelons in the greenhouse, with 0.254 kg of plastic used for each square meter of cultivation every year. The crops with less plastic use are eggplants, \begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Crop** & **ha** & **\%** & **Crop** & **ha** & **\%** \\ \hline CCG & 610.1 & 0.89 & COA & 202.93 & 0.30 \\ FBG & 695.07 & 1.01 & EPOA & 1527.47 & 2.22 \\ LG & 3344.02 & 4.87 & BPOA & 1872.89 & 2.73 \\ MG & 2867.88 & 4.17 & BKOA & 695.07 & 1.01 \\ WG & 2398.98 & 3.49 & LOA & 15,344 & 22.33 \\ FG & 94.91 & 0.14 & ZOA & 4208.57 & 6.12 \\ SG & 2594.28 & 3.77 & SCOA & 128.24 & 0.19 \\ POA & 36.46 & 0.05 & WOA & 11,052 & 16.08 \\ AOA & 1232.24 & 1.79 & FOA & 19,282 & 28.06 \\ ROA & 273.64 & 0.4 & EOA & 263.3 & 0.38 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: The total area cultivated with crops, used as a study in this paper for each Italian province. Values represent the total hectares and the percentage of total crops reported in Table 1.  
bell peppers, and beans in open air, with a value of 0.008 kg.m\({}^{-2}\).years\({}^{-1}\), since the only plastic structures used were irrigation pipes.