Penambahan zat pengatur tumbuh (ZPT) secara tepat dengan dosis yang sesuai dapat menunjang pertumbuhan tanaman tembakau yang optimal. Media tanam merupakan tempat berkembangnya akar dan hampir semua unsur hara yang dibutuhkan tanaman diserap melalui akar. Penelitian ini bertujuan untuk mengevaluasi pemberian ZPT dan berbagai komposisi media tanam terhadap pertumbuhan benih tembakau cerutu besuki. Penelitian ini menggunakan Rancangan Acak lengkap (RAL) faktorial terdiri dari dua faktor. Faktor pertama yaitu pencampuran IAA, BAP, dan GA3 dengan konsentrasi 100 ppm (Z1), 200 ppm (Z2), 300 ppm (Z3). Faktor kedua yaitu tiga komposisi media yaitu tanah (kontrol), tanah + kompos kambing, tanah + kompos ayam. Benih ditabur dalam bak kecambah sebanyak 1 gram. Semua perlakuan diulang sebanyak 3 kali. Pengamatan dilakukan setiap seminggu sekali sampai umur 45 hari. Parameter yang diamati meliputi tinggi tanaman (cm), diameter batang (cm), jumlah daun, panjang akar (cm), volume akar (ml), Luas daun (cm 2) dan parameter senyawa kimia yang diamati yaitu kadar protein (mg/g), kadar klorofil (mg/L), dan kadar nikotin (%) pada daun. Hasil penelitian menunjukkan bahwa pemberian media tanam tanah dengan kompos ayam dan aplikasi ZPT konsentrasi 200 ppm merupakan perlakuan yang optimal untuk memperoleh benih tumbuh tembakau cerutu yang baik. Kata kunci: Benih tembakau, zat pengatur tumbuh, media tanam Effect of Addition of Growth Regulatory Substances (ZPT) and Planting Media on Changes in Besuki Cigar Tobacco Seeds (Nicotiana tabacum L.
Bondowoso Arabica coffee is a type of coffee that grows on the slopes of Mount Ijen-Raung. It has a high commercial value and distinctive taste. Coffee processing applications from roasting, grinding, packaging and brewing to storage will affect the quality of coffee. Caffeine is one of the compounds in coffee that contributes to bitterness and has certain pharmacological effects. This study aimed to determine the caffeine content of Bondowoso Arabica coffee harvested on August 2021 which was obtained from Sukosari Lor village with various roast profiles and types of packaging. In this study, Arabica coffee was roasted with light roast, medium roast and dark roast profiles. Then each treatment was mashed to obtain ground coffee. Ground coffee was put in a standing pouch made of polyethylene terephthalate (PET) with a thickness of 75 microns; polypropylene (PP) with a thickness of 100 microns; and polypropylene (PP) with a thickness of 120 microns and then stored for three months. During the storage of first and third months, caffeine levels were measured. Based on the results of the study, the caffeine content was increase along with higher roasting temperature. During the storage process, the caffeine content in ground coffee packaged using PP decreased the most.
ABSTRAKPelatihan pembuatan pupuk organik perlu terus digiatkan, sehubungan dengan makin terbatasnya pupuk anorganik bersubsidi. Petani umumnya sangat bergantung pada pupuk anorganik. Sebagian besar mata pencaharian warga di Desa Rowosari Kecamatan Sumberjambe Kabupaten Jember ialah petani. Kelompok tani Bintang Tani merupakan salah satu Poktan di Rowosari yang memiliki permasalahan diantaranya belum mampu mengolah limbah ternak sapi dengan tepat, dan belum memahami terkait pemilihan varietas padi unggul yang sesuai untuk dikembangkan di Rowosari. Tujuan pelaksanaan pengabdian ini ialah untuk mensosialisasikan manfaat pupuk organik bagi tanah dan tanaman, serta pendampingan pembuatan pupuk organik petrokatul, dan sosialisasi varietas padi unggul spesifik lokasi. Petrokatul merupakan pupuk organik dengan tambahan bekatul. Petrokatul memiliki kandungan unsur hara yang lebih kaya dari pada pupuk organik lainnya. Banyaknya warga Rowosari yang memiliki hewan ternak merupakan potensi untuk dapat mendayagunakan limbah ternak yang ada menjadi pupuk Petrokatul. Penerapan pupuk organik ke lahan dan penggunaan varietas padi unggul ( Impari 32, Ciherang, Sintanur) yang sesuai lokasi merupakan upaya untuk dapat meningkatkan produksi padi yang dibudidayakan. Dari kegiatan pengabdian ini berhasil meningkatkan pengetahuan peserta dan menambah keterampilan peserta dalam pembuatan pupuk organik Petrokatul. Kata kunci: pupuk organik; petrokatul; varietas unggul; padi; pertanian terpadu ABSTRACTTraining on making organic fertilizers needs to be intensified, considering that subsidies for inorganic fertilizers are increasingly limited. Farmers generally rely heavily on inorganic fertilizers. Most of the people's livelihoods in Rowosari Village, Sumberjambe District, Jember Regency are farmers. The Bintang Tani Farmer Group is one of the groups in Rowosari that has problems, including not being able to process livestock waste properly, and not understanding the selection of superior rice varieties that are suitable for development in Rowosari. The purpose of this service is to socialize the benefits of organic fertilizer for soil and plants, as well as assistance in the manufacture of organic petrokatul fertilizer, and socialization of location-specific superior varieties of rice. Petrokatul is an organic fertilizer with the addition of rice bran. Petrokatul contains richer nutrients than other organic fertilizers. The number of Rowosari residents who own livestock has the potential to be able to utilize existing livestock waste into Petrokatul fertilizer. The application of organic fertilizer to the land and the use of superior rice varieties ( Impari 32, Ciherang, Sintanur) according to the location is an effort to increase the production of cultivated rice. This service activity succeeded in increasing the knowledge of participants and improving the skills of participants in making Petrokatul organic fertilizer. Keywords: organic fertilizer; petrokatul; superior varieties; paddy; integrated farming
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