Pengaruh Fly Ash Bottom Ash pada MikoSeedCookies terhadap Pertumbuhan Sengon Buto dan Sengon di Lahan Pascatambang Batubara

Abstract

Kegiatan penambangan batubara menggunakan metode sistem tambang terbuka yang menyebabkan penurunan kualitas kesuburan tanah. Lahan yang telah dilakukan kegiatan penambangan perlu dilakukan kegiatan revegetasi. Jenis yang dipilih untuk kegiatan revegetasi yaitu sengon buto (Enterolobium cyclocarpum (Jacq.) Griseb.) dan sengon (Falcataria moluccana (Miq.) Barneby & Grimes) karena mudah beradaptasi. Penanaman benih secara langsung (direct seeding) menjadi solusi alternatif untuk mengurangi biaya kegiatan revegetasi dengan bantuan media tanam campuran Miko-SeedCookies dan FABA. Penelitian ini bertujuan menganalisis pertumbuhan benih sengon buto dan sengon menggunakan media tanam campuran Miko-SeedCookies dan FABA, serta menganalisis kolonisasi mikoriza pada tanaman sengon buto dan sengon. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) terdiri empat perlakuan yaitu B0 (MSC + FABA 0%), B1 (MSC + FABA 10%), B2 (MSC + FABA 20%), dan B3 (MSC + FABA 30%) dan masing-masing 3 ulangan. Hasil penelitian menunjukkan perlakuan pada jenis sengon buto tidak memberikan pengaruh nyata pada setiap parameternya, tetapi pada jenis sengon parameter pertumbuhan tinggi dan diameter dipengaruhi secara nyata oleh perlakuan B1 akibat dosis FABA yang mempengaruhinya. Kolonisasi mikoriza pada jenis sengon buto berada pada rentang 9-24%, sedangkan pada sengon 0-2 yang tergolong kelas rendah-sangat rendah.

Coal mining activities use an open mining system method which causes a decrease in quality of soil fertility. Mining land activities have been carried out needs to be revegetated. The types chosen for revegetation are sengon buto (Enterolobium cyclocarpum (Jacq.) Griseb.) and sengon (Falcataria moluccana (Miq.) Barneby & Grimes) because they are easy to adapt. Direct seeding is an alternative solution to reduce the costs of revegetation activities with help of a mixture of Miko-SeedCookies and FABA planting media. This research aims to analyze the growth of sengon buto and sengon seeds using a mixture of Miko-SeedCookies and FABA planting media, as well as analyzing mycorrhizal colonization on sengon buto and sengon. This research used a Randomized Block Design consisting of four treatments, B0 (MSC + FABA 0%), B1 (MSC + FABA 10%), B2 (MSC + FABA 20%), and B3 (MSC + FABA 30%) with 3 repetitions. The results of the research showed that the treatment on the sengon buto species did not have a real influence on any parameters, but on sengon species, the height and diameter growth parameters are significantly influenced by B1 treatment to FABA dose which affect them. Mycorrhizal colonization in sengon buto species is in the range of 9-24%, while sengon 0- 2% is classified as low-very low.