Judul: Multicanopy Cultivation of Four Rice Varieties with Jajar Legowo Planting Distances at KP Babakan Dramaga
Abstrak: Padi (Oryza sativa) merupakan salah satu tanaman pangan terpenting di Indonesia. Peningkatan konsumsi beras tidak sebanding dengan luas panen di Indonesia. Penelitian ini bertujuan mempelajari pengaruh sistem budidaya dan varietas terhadap peningkatan produksi padi di Kebun Percobaan Sawah Baru IPB, Babakan Dramaga. Penelitian ini menggunakan RKLT faktorial dengan dua faktor yaitu sistem budidaya (monokultur, multikanopi sisip 1, multikanopi sisip 2) dan varietas (INPARI 32, INPARI 33, INPARI 43, IPB 9G sebagai tanaman sisipan). Hasil penelitian menunjukkan bahwa terdapat interaksi kedua perlakuan yang berpengaruh pada tinggi tanaman saat berumur 8 MST, tinggi batang saat panen, sudut kemiringan daun bendera. Pengaruh tunggal sistem budidaya signifikan terhadap tinggi tanaman padi saat berumur 8 MST, jumlah anakan, panjang daun dan sudut kemiringan daun bendera, bobot kering tajuk dan bobot kering malai saat panen, jumlah malai per rumpun, jumlah gabah isi per malai, bobot gabah per rumpun. Pengaruh tunggal varietas signifikan terhadap tinggi tanaman, jumlah anakan, panjang daun dan sudut kemiringan daun bendera, bobot kering malai, panjang malai, jumlah gabah per malai, jumlah gabah isi per malai, bobot 1000 butir, dan bobot gabah per rumpun., Rice (Oryza sativa) is one of the most important food crops in Indonesia. The increase in rice consumption is not proportional to the harvested area in Indonesia. This study aims to study the effect of cultivation systems and varieties on increasing rice production in the Experimental Garden of Sawah Baru IPB, Babakan Dramaga. This study used a factorial RKLT with two factors, namely the cultivation system (monoculture, multi-canopy insertion 1, multi-canopy insertion 2) and varieties (INPARI 32, INPARI 33, INPARI 43, IPB 9G as insertion plant). The results showed that there was an interaction between the two treatments that affected plant height at 8 WAP, stem height at harvest, flag leaf tilt angle. The single effect of the cultivation system was significant on rice plant height at the age of 8 WAP, number of tillers, leaf length and angle of inclination of flag leaves, crown dry weight and panicle dry weight at harvest, number of panicles per clump, number of filled grain per panicle, grain weight per clump. The single varietal effect was significant on plant height, number of tillers, leaf length and angle of inclination of flag leaf, panicle dry weight, panicle length, number of grain per panicle, number of filled grain per panicle, 1000 grain weight, and grain weight per clump.
Keyword: insertion, interaction, monoculture, production, productivity

Judul: Rice Growth and Production of Three Varieties of Inpari with Batang Piaman Variety inserts in Multicanopy
Abstrak: Peningkatan jumlah penduduk menyebabkan permintaan akan beras meningkat. Perlu dilaksanakan upaya peningkatan produksi padi untuk memenuhi kebutuhan padi nasional. Pengembangan inovasi sistem budidaya baru melalui sistem multikanopi merupakan salah satu upaya yang dapat dilakukan untuk meningkatkan produksi padi. Penelitian ini bertujuan mengkaji pertumbuhan dan produktivitas padi varietas Inpari 32, Inpari 33, dan Inpari 43 pada sistem budidaya multikanopi dengan sisipan varietas Batang Piaman. Penelitian dilaksanakan di lahan percobaan Balai Besar Tanaman Padi Sukamandi, Subang, Jawa Barat. Rancangan percobaan yang digunakan adalah Rancangan Lengkap Kelompok Teracak (RKLT) Faktorial dua faktor, yaitu varietas (Inpari 32, Inpari 33, dan Inpari 43) dan sistem budidaya (monokultur, multikanopi sisip 1, dan multikanopi sisip 2). Hasil penelitian menunjukkan varietas Inpari 43 dan sistem budidaya monokultur memiliki respon pertumbuhan dan produksi paling baik. Varietas, sistem budidaya, maupun interaksi keduanya tidak mempengaruhi produksi padi dalam gabah kering giling. Berdasarkan proyeksi hasil (tanpa gangguan hama), varietas Inpari 32 dengan sistem budidaya multikanopi sisip 2 menghasilkan produksi gabah kering giling tertinggi sebesar 8,93 ton ha-1., The increase in population caused increasing in demand for rice. It is necessary to increase rice production to meet national rice needs. The development new cultivation through a multi-canopy system is one of the efforts that can be made to increase rice production. This study aims to examine the growth and productivity of rice varieties Inpari 32, Inpari 33, and Inpari 43 in a multi-canopy cultivation system with the insertion of the Batang Piaman variety. The research was carried out in the experimental land of the Sukamandi Rice Research Center, Subang, West Java. The experimental design used was the Complete Design of the Randomized Group (RKLT) Factorial consisted of two factors, namely varieties (Inpari 32, Inpari 33, and Inpari 43) and cultivation systems (monoculture, multi-canopy insert 1, and multi-canopy insert 2). The results showed that the Inpari 43 variety under monoculture cultivation system had the best growth and production response. The variety, cultivation system, or interaction of them do not affect the production of dry milled grain rice. According to the yield projection (no damage by insect), the Inpari 32 variety with a multi-canopy insert 2 cultivation system resulted in the highest production of a dry milled grain of 8.93 tons of hectare.
Keyword: cultivation systems, inserts, production

Judul: Peluang Partikel Plasma Berada Pada Dimensi Debye Akibat Gangguan Gelombang Elektromagnetik dengan Menggunakan Persamaan Schrödinger
Abstrak: The solution of Schrodinger equations with plasma Coulomb potential in spherical coordinat results solution wave function and energy plasma particle. Electron probability density at Debye length with thermal effect same as ion, which indicates plasma in neutral state. Electromagnetic waves perturbation of an electric field given to result wave function perturbation system. The probability density of plasma particle due to electromagnetic waves perturbation is the largest when an electromagnetic waves frequency 1.41 times the plasma frequency .
Keyword: Schrödinger, plasma, electromagnetic wave