Pengaruh Dosis Perasan Daun Sirih Piper betle Terhadap Penyakit Tepung Erysihe polgoni Pada Tanaman Kacang Panjang Vignasinensis

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H Protection of plants and stored products/Perlindungan Tanaman::H10 Pests of plants/Hama tanaman, H Protection of plants and stored products/Perlindungan Tanaman::H20 Plant diseases/Penyakit tanaman, A Agriculture/Pertanian, A Agriculture/Pertanian::A50 Agricultural research/Penelitian Pertanian
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