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      Pengaruh Aplikasi Kompos Diperkaya FABA terhadap Sifat-Sifat Kimia Tanah dan Pertumbuhan Nanas pada 6 Bulan Setelah Tanam

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      Date
      2024
      Author
      Dewantara, Isfan Putra
      Mulyanto, Budi
      Iskandar
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      Abstract
      PT. Great Giant Pineapple (GGP) merupakan perkebunan nanas terbesar ketiga di dunia yang berlokasi di Lampung Tengah dan telah melakukan budidaya nanas secara monokultur sejak 1980. Budidaya nanas secara monokultur mengakibatkan penurunan kualitas tanah, sehingga diperlukan penambahan pembenah tanah untuk memperbaiki kualitas tanah. Usaha perbaikan tanah yang telah dilakukan PT. GGP masih belum cukup karena bahan organik yang diberikan mengalami penurunan cepat akibat iklim tropis Indonesia, sehingga diperlukan tambahan pembenah tanah lain. Penelitian ini bertujuan mengamati pengaruh aplikasi kompos diperkaya fly ash dan bottom ash (FABA) sebagai alternatif pembenah tanah yang dapat memperbaiki kualitas tanah. FABA adalah limbah hasil pembakaran batubara pada pembangkit listrik tenaga uap (PLTU). FABA dapat membantu memperbaiki kualitas tanah karena mengandung unsur hara makro (K, Na, Ca, Mg) dan mikro (Fe, Cu, Zn, Mn). Penelitian dilakukan dengan perlakuan bahan pembenah tanah kompos, kompos+FABA dengan dosis 50 ton/ha diberikan secara tebar dan 25 ton/ha, 15 ton/ha, dan 5 ton/ha diberikan secara palir untuk mengetahui pengaruh perlakuan terhadap sifat kimia tanah dan pertumbuhan tanaman pada 6 bulan setelah tanam (BST). Parameter karakteristik kimia tanah yang diamati meliputi pH, kejenuhan Al, C-organik, N-total, P, basa-basa dapat ditukar, KTK, dan kejenuhan basa. Aplikasi kompos diperkaya FABA dengan dosis 15 ton/ha secara palir menunjukkan hasil yang berpengaruh nyata dan meningkatkan sifat kimia tanah yaitu C-organik, N-total, P-tersedia, K-dd, Ca-dd, Mg-dd, Na-dd, KTK, dan kejenuhan basa, serta menurunkan kejenuhan Al. Aplikasi kompos diperkaya FABA dengan dosis 50 ton/ha secara tebar menunjukkan hasil yang berpengaruh nyata dan meningkatkan pertumbuhan tanaman yaitu panjang daun-D, lebar daun-D, indeks daun-D, berat batang, dan jumlah daun.
       
      PT. Great Giant Pineapple (GGP) is the world's third-largest pineapple plantation located in Central Lampung, Indonesia, which has been practicing pineapple cultivation through monoculture since 1980. Monoculture pineapple cultivation has led to a decline in soil quality, necessitating the addition of soil amendments to improve its quality. Despite the efforts made by PT. GGP to enhance the soil, the organic materials provided have rapidly deteriorated due to Indonesia's tropical climate, thus requiring additional soil amendments. This research aims to observe the effects of applying compost enriched with fly ash and bottom ash (FABA) as an alternative soil amendment to improve soil quality. FABA is a by-product of coal combustion from steam power plants (PLTU). FABA can help improve soil quality because it contains macro nutrients (K, Na, Ca, Mg) and micro nutrients (Fe, Cu, Zn, Mn). The study involved treating the soil with compost, compost+FABA at a rate of 50 tons/ha applied broadcast and 25 tons/ha, 15 tons/ha, and 5 tons/ha applied in bands, to determine the impact of the treatments on the soil's chemical properties and plant growth at 6 months after planting (MAP). The observed soil chemical characteristics included pH, aluminum saturation, organic carbon, total nitrogen, phosphorus, exchangeable bases, cation exchange capacity (CEC), and base saturation. The application of FABA-enriched compost at a rate of 15 tons/ha using the palir method significantly improved soil chemical properties, including organic C, total N, available P, exchangeable K, Ca, Mg, and Na, cation exchange capacity (CEC), and base saturation, while reducing Al saturation. Additionally, the application of FABA-enriched compost at a rate of 50 tons/ha using the broadcast method significantly enhanced plant growth, as evidenced by increased D-leaf length, D-leaf width, D-leaf index, stem weight, and number of leaves..
       
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      http://repository.ipb.ac.id/handle/123456789/155036
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      • UT - Soil Science and Land Resources [2825]

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