Electronic Theses and Dissertation

RINGKASAN

Inceptisol merupakan salah satu jenis tanah masam yang banyak di Indonesia yang penyebarannya cukup luas yaitu sekitar 70,5 juta Ha (37,5%) dimana 5,2 juta Ha (7,4%) diantaranya bersifat masam dan tersebar didaerah Sumatera, Jawa, Kalimantan, Sulawesi, dan Irian Jaya.
Biochar adalah bahan padat kaya karbon hasil konversi dari limbah organik (biomassa pertanian) melalui pembakaran tidak sempurna atau suplai oksigen terbatas. Kompos merupakan pupuk organik yang terbuat dari bahan-bahan organik baik dari limbah pertanian maupun sampah yang bersifat organik. Semua bagian dari limbah pertanian dapat diolah menjadi kompos baik dari daunnya, maupun kulit buah.
Penelitian ini dilaksanakan di Kebun Percobaan Sektor Timur, Fakultas Pertanian Universitas Syiah Kuala. Analisis tanah dilakukan di Laboratorium Penelitian Tanah dan Tanaman Fakultas Pertanian Universitas Syiah Kuala. Studi lapangan disusun dalam rancangan acak kelompok (RAK) faktorial dengan dua faktor, yaitu jenis biochar+kompos (biokom) dan lamanya inkubasi, jenis biokom yang digunakan adalah berupa biochar kelapa muda+kompos, biochar sekam padi+kompos, dan biochar ampas tebu+kompos dengan masa inkubasi pada 0 hari, 10 hari, dan 25 hari, masing masing perlakuan dilakukan pengulangan sebanyak 3 kali.
Hasil penelitian setelah diuji menunjukkan bahwa Pemberian biochar+kompos (biokom) pada tanah Inceptisol tidak berpengaruh nyata terhadap C-Organik tanah.Pemberian biochar+kompos (biokom) secara tunggal berpengaruh nyata terhadap pH tanah Inceptisol.

SUMMARY Inceptisol is a type of acid soil that is common in Indonesia and has a fairly wide distribution, namely around 70.5 million Ha (37.5%) of which 5.2 million Ha (7.4%) is acid and is spread across Sumatra, Java, Kalimantan, Sulawesi and Irian Jaya. Biochar is a carbon-rich solid material resulting from the conversion of organic waste (agricultural biomass) through incomplete combustion or limited oxygen supply. Compost is an organic fertilizer made from organic materials, both agricultural waste and organic waste. All parts of agricultural waste can be processed into compost, both from leaves and fruit skins. This research was carried out at the East Sector Experimental Garden, Faculty of Agriculture, Syiah Kuala University. Soil analysis was carried out at the Soil and Plant Research Laboratory, Faculty of Agriculture, Syiah Kuala University. The field study was arranged in a factorial randomized block design (RAK) with two factors, namely the type of biochar+compost (biocom) and the length of incubation. The types of biocom used were young coconut biochar+compost, rice husk biochar+compost, and sugarcane bagasse biochar+ compost with incubation periods of 0 days, 10 days and 25 days, each treatment was repeated 3 times. The results of the research after testing showed that the application of biochar+compost (biokom) to Inceptisol soil had no significant effect on soil C-Organic. The application of biochar+compost (biocom) alone had a significant effect on the pH of Inceptisol soil.