Judul: Respon Pertumbuhan dan Produksi Dua Varietas Kacang Tanah (Arachis hypogaea L.) terhadap Sistem Tanam Alur dan Pemberian Jenis Pupuk
Abstrak: This research aims to study the effect of cropping systems and types of fertilizers on the growth and production of two varieties of peanut (Arachis hypogaea L.). The experiment was conducted at IPB Dramaga Leuwikopo KP, Bogor in February-June 2013. Experiments using a split plot design with a treatment consisting of two factors, namely cropping systems as main plots and fertilizer as the subplot. Cropping systems in the main plot consists of two levels, the deep furrow planting and conventional planting. Types of fertilizers on subplot consisted of three levels i.e. chicken manure, chicken manure + Dolomite lime, chicken manure + Dolomite lime + NPK compound. The results showed that the deep furrow planting system increase productivity based on dry kernel weight and dry pod weight better than conventional planting system. This is shown by the productivity of dry pods of Gajah variety of 2.93 tonnes ha-1 at deep furrow planting system than 2.55 tonnes ha-1 at conventional planting system, and for Jerapah variety of 2.61 tonnes ha-1 at deep furrow planting system than 2.22 tonnes ha-1 at conventional planting system. Peanut cultivation by deep furrow planting system can improve efficiency in the use of plant nutrients supplied, both organic and inorganic fertilizers, so that the growth and yield of groundnut better. Fertilizers type of chicken manure + Dolomite lime + NPK compound give better effect on the growth and yield of plants than other fertilizers types.
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Judul: Effects of Fertilizer Types and Pruning on the Yield of Peanut (Arachis hypogaea L.) Pelanduk Variety
Abstrak: Kacang tanah merupakan tanaman Leguminosae yang sudah banyak dikenal dan dibudidayakan di Indonesia. Namun, produksi kacang tanah di Indonesia masih rendah dan cenderung stagnan. Hal ini disebabkan oleh tidak tersedianya lahan yang cukup luas untuk memproduksi kacang tanah serta teknik budidaya yang masih tergolong tradisional. Tujuan penelitian ini adalah untuk mempelajari pengaruh penggunaan beberapa jenis pupuk dan pemangkasan terhadap daya hasil tanaman kacang tanah varietas Pelanduk. Penelitian ini dilaksanakan di Kebun Percobaan Institut Pertanian Bogor, Desa Cikarawang, Kabupaten Bogor dari bulan Maret sampai Juni 2020. Penelitian ini menggunakan kacang tanah varietas Pelanduk dengan rancangan petak terbagi (split plot) dua faktor perlakuan. Petak utama adalah perlakuan pemberian beberapa jenis pupuk yang terdiri dari 5 taraf yaitu, tanpa pupuk, NPK Mutiara 300 kg ha-1, NPK Mutiara 300 kg ha-1 + kapur Dolomit 1 ton ha-1, pupuk kandang 1 ton ha-1 + pupuk daun 2 ml l-1, dan pupuk kandang 1 ton ha-1 + pupuk daun 2 ml l-1 + kapur Dolomit 1 ton ha-1. Pemangkasan sebagai anak petak terdiri dari 3 taraf yaitu, tanpa pangkas, pemangkasan 1 cabang lateral, dan pangkas batang utama. Perlakuan jenis pupuk memberikan pengaruh yang nyata pada hasil kacang tanah yaitu peubah bobot basah ubinan, bobot kering ubinan, dan produktivitas polong tanaman kacang tanah. Sedangkan pada perlakuan pemangkasan dan interaksi antara keduanya tidak memberikan hasil yang berpengaruh secara nyata. Hasil penelitian menunjukkan bahwa pemberian pupuk NPK Mutiara 300 kg ha-1 + kapur Dolomit 1 ton ha-1 memberikan hasil yang lebih tinggi pada peubah komponen hasil, namun tidak berbeda nyata dari pupuk NPK Mutiara 300 kg ha-1., Peanut is a Leguminoceae plant that is widely known and cultivated in indonesia. However, peanut production in Indonesia is still low and tends to be stagnant. This is caused by the unavailability of large enough land to produce peanuts and cultivation techniques that are still classified as traditional. The purpose of this research was to study the effect of using several types of fertilizers and pruning on the yield of Pelanduk peanut variety. This research was conducted at the Experimental field of the Bogor Agricultural University, Cikarawang Village, Bogor Regency from March to July 2020. This research used peanut varieties Pelanduk with split plot design of two treatment factors. The main plot is the treatment of giving several types of fertilizers consisting of 5 levels, namely, without fertilizer, NPK Mutiara 300 kg ha-1 , NPK Mutiara 300 kg ha-1 + Dolomite lime 1 ton ha-1 , manure 1 ton ha-1 + leaf fertilizer 2 ml l-1 , and manure 1 ton ha-1 + leaf fertilizer 2 ml l-1 + Dolomite lime 1 ton ha-1 . Pruning as a subplot consists of 3 levels, namely, without pruning, pruning 1 lateral branch, and pruning the main stem. Treatment of the type of fertilizer had a significant effect on the yield of peanuts, namely the variables of the wet weight of the tuberose, the dry weight of the tuberose, and the productivity of peanut pods. Meanwhile, the pruning treatment and the interaction between the two did not give any significant effect. The results showed that the application
Keyword: fertilizer types, peanuts, production, productivity, pruning

Judul: Formulasi Hamiltonian untuk Menggambarkan Gerak Gelombang Soliter Dimensi Tiga di Permukaan Laut
Abstrak: Gelombang permukaan adalah gelombang yang terjadi perbedaan rapat massa antara air dan udara. Salah satu gelombang permukaan yang ditinjau adalah gelombang soliter. Formulasi gelombang soliter dilakukan dengan menggunakan formulasi Hamiltonian.
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