Opady gradu to zjawisko występujące latem, coraz częściej w okresie dojrzewania owoców. Jego skutki mogą być dotkliwe dla sadowników i prowadzić do poważnych strat ekonomicznych. Obecne rozwiązania i technologie pozwalają na skuteczne zabezpieczenie nasadzeń i dojrzewających owoców przed kulami gradowymi.
Podczas ubiegłorocznego Dnia Otwartego w Sadzie Doświadczalnym SGGW w Wilanowie w kwaterach, w których prowadzone są doświadczenia, odbyły się pokazy pracy kilku maszyn i urządzeń mogących znaleźć zastosowanie w sadownictwie.
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