Nell’ambito del controllo meccanico delle infestanti sulla fila, è stato progettato e valutato un sistema di rilevamento delle talee di pioppo che utilizza sistemi di controllo remoto. Obiettivo nel medio periodo è la realizzazione di un modulo sulle più comuni macchine operatrici.
While the mechanical weeding in the inter-row is current practice, the removal within the row is a challenging issue. Automatic systems have been studied based on crop detection or weed recognition, but these techniques are expensive and with variable reliability. During the first year, the poplar growth in the short rotation coppice (SRC) is rather slow and, hence, in order to avoid remarkable yield losses, the control of intra-row weeds assumes a fundamental importance. Within the Italian project Suscace, a simplified detection system, consisting of a photoelectric (PS) and a capacitive sensor (CS) has been designed and tested in order to assess the degree of accuracy of the poplar cuttings detection along the row. A one-year old poplar stand sited in Central Italy was used for the study. The distance between the rows was 3 m with a spacing of 0.50 m between the cuttings within the row. The testing apparatus consisted of a small platform moving along a monorail four meter long. This was placed parallel to the planted row and its detection capacity appraised at three distances (0.15, 0.20, and 0.25 m) from the row and two speeds (1.0 and 1.5 km h-1), values routinely adopted during mechanical weeding. Compared to the PS, the CS revealed a higher amplitude of the response in presence of a poplar cutting. The CS, once identified the plant, allowed its precise confinement, an information helping to integrate the slight interference (due the non-uniformity in shape, size and development of the cuttings) observed for the PS. The signals of PS and CS complement each other by bridging the respective gaps in the identification of the cuttings. Interestingly, any significant differences were observed for different distances and speeds.
|Autori:||Assirelli, A.;Liberati, P.;Santangelo, E.;Del Giudice, A.;Pari, L.|
|Data di pubblicazione:||2014|
|Titolo:||Il diserbo sulla fila del pioppo SRC. Valutazione di sensori di rilevamento delle talee.|
|Rivista:||SHERWOOD. FORESTE ED ALBERI OGGI|
|Appare nelle tipologie:||1.1 Articolo in rivista|