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The aim of the research was to study the effect of calors plastic shade and dosage organic fertilizer and the interaction on the growth analyze of Shallots. The experiment was conducted in experiment field of Agriculture Faculty, University Muhammadiyah of Jember.The experiment was arranged in Randomized Block Design consisted of 4 x 3 factorial treatments with three replications. The first factor were 3 levels of Transparent Plastic Shelter, i.e.: clear, blue, and red. The second factor were 4 levels of compost organic fertilizer application, i.e.: 15, 20, 25 and 30 t/ha. The results showed a significant interaction between the color shade of plastic and a dose of organic fertilizer on the parameters of leaf area age 60 days after planting and leaf area index age 60 days after planting, treatment shade of blue with organic fertilizer 30 tons / ha showed the best effect on leaf area and treatment shade of blue with dosages of 25 tons / ha showed the best effect on leaf area index. Use of shade of blue give the best effect on leaf area age 60 hst and shade of red gives the best effect on the growth rate of plants. The treatment dose of organic fertilizer 25 tons / ha gives the best effect on leaf area index age of 60 days after planting, the rate of plant growth, and relative growth rate, and treatment with a dose of fertilizer 30 ton / ha.

Tanaman selada memerlukan unsur hara makro dan unsur unsur mikro sesuai dengan kebutuhan yang telah tersedia di dalam larutan nutrisi untuk pertumbuhan dan kualitas tanaman. Untuk memenuhi kebutuhan maka hidroponik merupakan alternatif yang dapat digunakan untuk meningkatkan produktivitas tanaman terutama di lahan sempit. Penelitian ini dilaksanakan di Greenhouse Fakultas Pertanian Universitas Muhammadiyah Jember. Rancangan percobaan yang digunakan dalam penelitian ini menggunakan Rancangan Split Plot RAL yang terdiri dari perlakuan Nutrisi sebagai Petak Utama terdiri tiga taraf yaitu AB Mix (N1), NPK Mutiara 16-16-16 (N2) dan Urea TSP KCl, Gandasil D (N3) demikian juga Media tanaman sebagai Anak Petak sebanyak tiga taraf yaitu Rock woll (M0), Arang sekam (M1) dan Batu bata (M2) dan diulang tiga kali. Analisis data dilakukan dengan uji F dan dlanjutkan dengan uji lanjut Duncan 5%. Hasil peneltian pemberian nutrisi AB Mix berpengaruh terhadap pertumbuhan tanaman selada pada tinggi tanaman 14 hst, selanjutnya media tanam rockwool berpengaruh terhadap pertumbuhan tanaman selada pada variabel pengamatan jumlah helai daun. Pengaruh interaksi nutrisi dan media, berpengaruh pada variabel pengamatan jumlah helai daun dan panjang daun.

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Saba feeder is a feeder who supplies 78 distribution transformers with feeder length 38,959 kms, through this Saba feeder electrical energy is channeled radially to each distribution substation. In 2017 the voltage shrinkage at Saba feeder was 9.88% (18,024 kV) while the total power loss was 445.5 kW. In this study an attempt was made to overcome the voltage losses and power losses using the method of optimizing bank capacitors with genetic algorithms and network reconfiguration. The best solution obtained from this study will be selected for repair of voltage losses and power losses in Saba feeders. The results showed that by optimizing bank capacitors using genetic algorithms, the placement of capacitor banks was placed on bus 23 (the channel leading to the BB0024 transformer) and successfully reduced the power loss to 331.7 kW. The network reconfiguration succeeded in fixing the voltage on the Saba feeder with a voltage drop of 4.75% and a total power loss of 182.7 kW. With the combined method, reconfiguration and optimization of bank capacitors with genetic algorithms were obtained on bus 27 (channel to transformer BB0047) and managed to reduce power losses to 143 kW.