Penggunaan pupuk organik perlu ditingkatkan untuk mengurangi konsumsi pupuk anorganik. Salah satu bahan organik yang ketersediaannya melimpah, mudah diperoleh dan terjaga kontinuitasnya adalah kotoran sapi yang dapat diolah menjadi biogas. Salah satu limbah biogas adalah slurry padat yang masih mengandung nutrisi atau zat hara untuk tanaman tetapi pemanfaatannya belum optimal. Melalui pemanfaatan teknologi, limbah biogas dapat dimanfaatkan menjadi produk yang mempunyai nilai tambah, salah satunya menjadi pelet pupuk organik. Tujuan dari program pengabdian adalah: (1) melakukan sosialisasi, memberikan pelatihan dan pendampingan kepada masyarakat khususnya Kelompok Tani Ternak Bulu Andini tentang pembuatan pupuk pelet organik dari limbah biogas. (2) meningkatkan pengetahuan dan keterampilan masyarakat khususnya Kelompok Tani Ternak Bulu Andini untuk mengaplikasikan pelet pupuk organik dari limbah biogas dalam pembibitan beberapa tanaman perkebunan, yaitu kopi, kakao, dan pala. Metode kegiatan yang dilakukan antara lain: survey, pelatihan in class, praktik, dan pendampingan. Pengabdian masyarakat ini menghasilkan peningkatan pengetahuan kelompok ternak untuk meningkatkan nilai tambah slurry biogas melalui transfer ilmu pengolahan pelet pupuk yang dapat diaplikasikan pada tanaman perkebunan. Program pengabdian ini juga mampu memberikan peningkatan kemampuan kepada masyarakat mengenai pemberian pupuk pelet ke tanaman perkebunan dengan teknis aplikasi yang tepat.
Agroindustri merupakan sektor yang penting bagi Indonesia karena potensi sumberdaya alamnya. Dalam perkembangannya, agroindustri merupakan sektor yang dinamis dan semakin kompleks. Tuntutan dari konsumen semakin ketat dan beragam, sistem produksi semakin canggih dan interaksi dari pelaku dalam rantai pasok yang semakin masif perlu didukung oleh teknologi dan sistem yang mampu mengintegrasikan rantai pasok agroindustri dari hulu sampai hilir. Selain itu, produk agroindustri yang bersifat mudah rusak, adanya masalah keamanan pangan, dan tuntutan akan sistem rantai pasok yang berkelanjutan menjadi tantangan bagi rantai pasok agroindustri. Block chain yang semula merupakan platform teknologi pada uang digital, mulai dikembangkan untuk sektor lain seperti kesehatan, copy right, dan rantai pasok. Artikel ini membahas tentang harapan dan tantangan penerapan teknologi blockchain dalam rangka mengantisipasi perkembangan dan tantang rantai pasok agroindustri
The high availability of slurry from palm oil mill effluent, solid, and boiler ash with their nutrient contents make those three materials are potential to be processed become organic fertilizer in the form of pellet so it tends to has slow release characteristic. This research aims to analyize characteristic of organic fertilizer pellet from slurry of palm oil mill effluent as slow release fertilizer by analyzing its physical characteristics, NPK content, and NPK releasing rate in soil.Slurry was processed become solid fertilizer in the form of pellet using pellet mill with tapioca adhesive 5%. Pellet was made from slurry, solid, and boiler ash which were mixed with ratio 1:1:1, 1:2:2, 2:1:1, 2:2:1, 2:1:2, 1:0:0 (only slurry). This research ware analysis of physical characteristis (length, diameter, and density) and analysis of NPK content. N content was analyzed using Kjeldahl method, P content using spectrophotometer, and K content using Atomic Absorbtion Spectrophotometer (AAS). Then it was continued with analysis of NPK releasing content in latosol soil.The average length of pellets was 31–48 mm, diameter was 5,42 – 6,28 mm, water content was 0,426 – 0,976%, particle density was 1,04 – 1,34 g/cm3, and bulk density 0,49–0,63 g/cm3. Organic fertilizer pellet in six formulas contained N+P2O5+K2O about 5,93–8,08%. The highest content (8,08%) was produced from 1:0:0 pellet, followed by 2:1:2 formula (7,53%), and 1:2:2 formula (7,25%). Until the 10th days, the releasing of N element was about 1,99 – 3,18%, P element was 0,063– 0,075%, and K element was 43,54 – 62,26%.
ABSTRAK Salah satu permasalahan limbah pabrik kelapa sawit adalah pengelolaan Tandan Kosong Kelapa Sawit (TKKS). Cara yang dapat dilakukan untuk penanganan limbah TKKS, yakni dengan konversinya secara biologis untuk menjadi green fertilizer. Metode yang dilakukan dalam penelitian ini adalah metode observasi dan metode analisis deskriptif pada masing – masing perlakuan dan ditentukan lamanya penelitian selama 28 hari. Alat yang digunakan adalah cangkul, ember, gembor, dan tempat vermikomposting. Peralatan pengujian antara lain timbangan, pH meter dan jangka sorong. Kemudian bahan yang digunakan adalah limbah – limbah kelapa sawit (Sludge, Solid, dan Tankos). Perlakuan yang dilakukan adalah meng-kompositkan 3 bahan – bahan limbah sawit dengan proporsi 100%, 50%, dan 25% kemudian diberikan cacing Lumbricus rubellus sebesar 500 gr setiap perlakuan. Parameter yang dilakukan adalah pengujian laju penguraian, pH, karakteristik cacing yang kemudian dilakukan pengamatan setiap 7 hari sekali sampai dengan penentuan waktu selama 28 hari. Laju dekomposisi bahan organik yang dilakukan oleh cacing mendapatkan respon paling tinggi pada perlakuan pencampuran media L6 (65 %) dan L7 (88%). Proses dekomposisi ternyata tidak mempengaruhi pH media, pH yang didapat rerata adalah 6. Dari proses laju dekomposisi dan pH media tidak mempengaruhi karakteristik cacing Lumbricus rubellus dimana pertumbuhannya justru meningkat. Hal ini diduga karena kondisi media yang cocok untuk keberlangsungan hidupnya. ABSTRACT One of the problems with palm oil mill waste is the management of Oil Palm Empty Bunches (OPEFB). One method that can be used for handling OPEFB waste is by converting it biologically to green fertilizer. The method used in this research is observation and descriptive analysis methods for each treatment. The length of the study was 28 days. The tools used were a hoe, bucket, watering can, and a place for vermicomposting. Testing equipment includes scales, pH meters and calipers. Material used was palm oil waste (sludge, solid, and empty bunches). The treatment carried out was to composite 3 materials - palm oil waste materials with a proportion of 100%, 50%, and 25%. The composite was then given 500 grams of Lumbricus rubellus worms per treatment. The parameters measured were the decomposition rate, pH, characteristics of the worms which were observed every 7 days up to 28 days. The rate of decomposition of organic matter received the highest response in the mixing treatment of L6 (65%) and L7 (88%) media. The decomposition process did not affect the pH of the media. The average pH obtained was 6. The process of decomposition rate and media pH did not affect the characteristics of Lumbricus rubellus worms. The growth of the worms increased, which is presumably because the media conditions were suitable for their survival.
Organic fertilizer can yield higher production compared to regular fertilizer if properly applied. Thus, it can be a solution to improve nutrient content of soil. The biggest source of bio slurry in plantation is from Palm Oil Mill Effluent (POME) and cow dung biogas. This research aimed to analyze the residue’s potential from the result of biogas processing and bio slurry from POME as slow-release fertilizer pellet. Bio slurry was processed into pellet through densification process using pellet mill. The research was arranged in a Randomized Block Design method with five slurry compositions as treatments, including 70:30, 60:40, 50:50, 40:60, and 30:70 (ratio of biogas slurry and POME slurry), each consisted of three replications. According to the data obtained, fertilizer pellets had characteristics of 25 – 29 mm of length, 5.23 – 5.85 mm of diameter, 0.44 – 0.53 g/cm3 of density, 54.78% - 81.96% of durability, and 7.81% - 8.57% of moisture content. Based on density and durability aspects, 30:70 composition was the higher. Macronutrient content of the five compositions were 1.88% - 2.72%, in which on day 22, N, P, and K release was 0.36 – 1.01%, 73.51 – 97.48%, and 3.19 – 7.85%, respectively. Meanwhile, on day 17, the nutrition solution conductivity of all compositions had already reached 0.80 – 1 mS/cm.
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