Incidence of Downy Mildew Disease (Pseudoperonospora cubensis) on Watermelon with Various Fertilizer Compositions on Coastal Sandy Soils in Pandeglang Regency, Banten Dallen Fauzi Alvinda, Mofit Eko Poerwanto*, Partoyo, Dyah Rachmawati Lucitasari, Siwi Hardiastuti, Danar Wicaksono, Azizah Ridha Ulilalbab, Miftahul Ajri, Mawar Kusumawardani
Faculty of Agriculture, UPN Veteran Yogyakarta, Indonesia
Abstract
This research aims to examine the incidence of watermelon plant disease in coastal sandy land using various fertilizer compositions. Coastal sandy soils has different characteristics compared to general agricultural land, requiring a specific approach to pest and disease management as well as fertilizer application. The research was conducted in three villages, namely Ponggehaur Village, Coneang Village, and Bengkok Village, over one growing season. The research method included direct observation in experimental fields that received different fertilizer treatments. The fertilizers used in this study consisted of conventional and Cosmocel fertilizers. The observed parameters were the incidence of disease in five different fertilizer treatments. The data obtained was analyzed using Analysis of Variance (ANOVA) with a significance level of α- = 5%. Fertilizer compositions did not affect the powdery mildew disease incidence in Coneang and Bangkok villages. Watermelons planted in Ponggehaur Village with 50% conventional fertilizer and 100% Cosmocel have the lowest powdery mildew disease incidence.
Keywords: Fertilizer compositions, disease incidence, watermelon, coastal sand land
