Electronic Theses and Dissertation

Pengomposan dan pembuatan biochar tandan kosong kelapa sawit merupakan salah satu upaya untuk mengurangi limbah pabrik kelapa sawit. Kompos dan biochar tandan kosong yang dihasilkan digunakan untuk menambahkan bahan organik yang dibutuhkan tanah Inceptisol agar dapat diberdayakan dalam proses budidaya tanaman cabai (Capsicum Annuum sp). Cabai merupakan salah satu hortikultura yang penting di Indonesia. Tandan kosong berpotensi sebagai pupuk karena mempunyai kandungan hara yang cukup tinggi oleh sebab itu, Inceptisol dapat digunakan untuk melihat Pengaruh Kombinasi Kompos dan Biochar Tandan Kosong Kelapa Sawit terhadap Beberapa Sifat Biologi dan Kimia Tanah Rhizosfer Tanaman Cabai Merah (Capsicum annuum L) pada Inceptisol.Tujuan dalam penelitian ini untuk mengetahui pengaruh kombinasi kompos dan biochar tandan kosong kelapa sawit terhadap beberapa sifat biologi dan kimia tanah pada rhizosfer tanaman cabai merah (Capsicum annuum L.) di tanah Inceptisol.
Penelitian ini dilaksanakan di Desa Ujung Fatihah Kecamatan Kuala Kabupaten Nagan Raya. Analisis sifat biologi dilakukan di Laboratorium Biologi Tanah dan analisis kimia tanah dilakukan di Laboratorium Penelitian Tanah dan Tanaman Fakultas Pertanian Universitas Syiah Kuala. Penelitian ini menggunakan metode RAK (Rancangan Acak Kelompok) Non Faktorial, dengan 8 perlakuan dan 3 ulangan sehingga diperoleh sebanyak 24 satuan perlakuan. Pengamatan yang diamati pada sifat biologi tanah yaitu, total mikroorganisme, mikroorganisme pelarut fosfat dan Azotobacter sp. Sedangkan pengamatan terhadap kimia tanah yaitu pH (H2O), C-organik (%), N-total (%), K-dd (cmol+kg-1), dan P-tersedia (mg kg-1). Data pengamatan di olah dengan menggunakan analisis ragam (ANOVA). Apabila perlakuan menunjukkan pengaruh nyata maka dilanjutkan dengan uji Beda Nyata Jujur (BNJ) pada taraf 5%.
Hasil penelitian ini menunjukkan bahwa pemberian kombinasi kompos dan biochar tandan kosong kelapa sawit tidak berpengaruh nyata terhadap total populasi mikroorganisme, populasi mikroorganisme pelarut fosfat, populasi Azotobacter sp., pH, Corganik, N-total, P-tersedia, dan K-dd pada tanah.

Composting and biochar production from oil palm empty fruit bunches is one of the efforts to reduce palm oil mill waste. The resulting compost and biochar from empty fruit bunches are used to add organic matter needed by Inceptisol soil so that it can be utilized in the cultivation process of chili plants (Capsicum Annuum sp). Chili is one of the important horticultural crops in Indonesia. Empty fruit bunches have potential as fertilizer because they have a high nutrient content. Therefore, Inceptisol can be used to observe the Effect of Combination of Compost and Biochar from Oil Palm Empty Fruit Bunches on Some Biological and Chemical Properties of Rhizosphere Soil of Red Chili Plants (Capsicum annuum L.) on Inceptisol. The purpose of this study was to determine the effect of the combination of compost and biochar from oil palm empty fruit bunches on some biological and chemical properties of soil in the rhizosphere of red chili plants (Capsicum annuum L.) in Inceptisol soil. This research was conducted in Ujung Fatihah Village, Kuala District, Nagan Raya Regency. Analysis of biological properties was carried out at the Soil Biology Laboratory, and soil chemical analysis was carried out at the Soil and Plant Research Laboratory, Faculty of Agriculture, Syiah Kuala University. This study used a Non-Factorial Randomized Block Design (RBD) method, with 8 treatments and 3 replications, resulting in 24 treatment units. Observations made on soil biological properties were total microorganisms, phosphate-solubilizing microorganisms, and Azotobacter sp. While observations on soil chemistry were pH (H2O), organik-C (%), total-N (%), exchangeable-K (cmol+kg-1), and available-P (mg kg-1). Observational data were processed using analysis of variance (ANOVA). If the treatment showed a significant effect, it was followed by an Honest Significant Difference (HSD) test at the 5% level. The results of this study indicate that the application of a combination of compost and biochar from oil palm empty fruit bunches did not significantly affect the total population of microorganisms, the population of phosphate-solubilizing microorganisms, the population of Azotobacter sp., pH, organic-C, total-N, available-P, and exchangeable-K in the soil.