Judul: Growth and Production of Indian Acalypha  (Acalypha indica) with different Inorganic Fertilizer Doses and Planting Media
Abstrak: Tumbuhan anting-anting (Acalypha indica) suku Euphorbiaceae merupakan salah satu jenis tumbuhan yang biasa digunakan sebagai obat karena senyawa biokimianya. A.indica mudah tumbuh dan sering dianggap sebagai gulma namun pengetahuan mengenai teknik budidaya masih terbatas. Penelitian ini bertujuan mempelajari pertumbuhan vegetatif dan mengetahui produktivitas A. indica dengan dosis pupuk anorganik dan media tanam yang berbeda. Penelitian dimulai dari bulan November hingga Desember 2023 di Gunung Batu, Bogor. Penelitian menggunakan metode rancangan kelompok lengkap teracak dua faktor. Faktor pertama yakni dosis pupuk NPK Mutiara (16-16-16) terdiri dari empat taraf, yaitu 0, 1, 2 dan 3 g/tanaman. Faktor kedua yakni media tanam terdiri dari tiga taraf, yaitu topsoil, topsoil + arang sekam (1:1 v/v) dan topsoil + pupuk kandang sapi (1:1 v/v). Hasil yang diperoleh menunjukkan penambahan dosis pupuk NPK 2 g/tanaman nyata meningkatkan bobot kering per tanaman. Media tanam topsoil + pupuk kandang sapi merupakan media tanam terbaik yang menghasilkan bobot kering per tanaman tertinggi. Penambahan dosis pupuk NPK 2 g/tanaman pada media tanam topsoil nyata meningkatkan bobot basah per tanaman. Penambahan dosis pupuk NPK 1 g/tanaman nyata meningkatkan bobot basah per tanaman. Media tanam topsoil + pupuk kandang sapi sudah memberikan pengaruh yang nyata dapat meningkatkan bobot basah tanpa penambahan pupuk NPK.
Keyword: Cultivation, NPK Fertilizer, cow manure

Judul: Peningkatan Pertumbuhan dan Hasil Tanaman Gedi (Abelmoschus manihot (L.) Medik.) dengan Aplikasi Pupuk Organik dan Pupuk Anorganik
Abstrak: The objective of this research was to study the effect of organic fertilizer and anorganic fertilizer rate to the growth and yield of gedi (Abelmoschus manihot (L.) Medik.). This research was conducted at Cikabayan Farm, Institut Pertanian Bogor, Indonesia from February to August 2011. The material plant was collected from Sorong, West Papua. The experiment was arranged in Completely Randomized Block Design with fertilizer rate as a single factor treatment. There were eight fertilizer rate treatments such as 0, 20, 40, 60 ton.ha−1 organic fertilizer and 0, 20, 40, 60 ton.ha−1 organic fertilizer + NPK. The organic fertilizer was used chicken manure and anorganic fertilizer NPK 15-15-15. The result of this research showed that using 30.39-34.04 ton.ha-1 of organic fertilizer rate will reached the optimum yield. The optimum rate of organic fertilizer + NPK fertilizer was not determined yet. But, by using of NPK fertilizer could increase the harvest.
Keyword: fertilizer dose, gedi, growth, production

Judul: Grup dan Homomorfisma Grup pada Rubik Revenge
Abstrak: Rubik cube is a kind of puzzle game. A player must arrange rubik sides, which have been disordered, back to the position where every side has the same colour. This paper does not focus on the settlement solution, but instead on proving the existence of a group homomorphism between rubik movement group and S96 symmetric permutation group in rubik revenge. Firstly, it has been proved that rubik movement set is a group. Then, it also has been proved that the M set, which contains numeric labels of 1 until 96 in cubinos sides, is S96 symmetric permutation group.
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