Budidaya padi pada sistem hidroponik menjadi alternatif untuk memanfaakan lahan yang sempit. Namun perlu diketahui respons tanaman padi terhadap bebagai media tanam dan sumber nutrisi. Penelitian ini bertujuan untuk mengetahui respons tanaman padi (Oryza sativa L.) terhadap berbagai media tanam dan sumber nutrisi pada sistem tanam hidroponik vertikultur bokas. Percobaan disusun dalam rancangan petak terbagi dengan tiga kali ulangan dalam Rancangan Acak Lengkap (RAL). Perlakuan pada petak utama yaitu Nutrisi AB mix, POC, dan NPK, sedangkan pada anak petak yaitu media tanam Arang Sekam, Batu Bata, dan Serbuk Gergaji. Hasil penelitian menunjukkan bahwa perlakuan nutrisi berbeda nyata terhadap parameter tinggi tanaman umur 15, 30 dan 60 hst, sedangkan pada umur 45 hst tidak berbeda nyata. Pertambahan jumlah anakan per rumpun pada semua umur tanaman tidak berbeda nyata. Lebar daun umur 60 hst berbeda nyata, sedangkan pada umur 15, 30 dan 45 hst tidak berbeda nyata. Pada pengamatan umur panen, berat gabah per rumpun dan berat gabah per 1000 bulir berbeda nyata. pengamatan pada pertambahan panjang akar, anakan per rumpun, anakan produktif, umur berbunga, jumlah bulir per rumpun, jumlah bulir bernas dan berat ton per hektar tidak berbeda nyata, sedangkan pada perlakuan media tanam seluruh pengamatan sangat berbeda nyata. perlakuan interaksi antara nutrisi dan media tanam pada pengamtan lebar daun umur 15 hst berbeda nyata sedangkan pada semua pengamatan tidak berbedanya.
The use of an induction motor requires the process of stopping the motor speed quickly, using mechanically and electrically generated braking torque. Dynamic braking, which is done by making a magnetic field stationary motor. This condition is carried out by injecting a DC current into the three phase induction motor stator coil after the connection of the stator coil is released from the AC supply voltage source. The advantages of dynamic braking include ease of speed regulation of three-phase induction motors and mechanical losses can be reduced. A system for reversing the direction of star-delta three phase induction motor rotation with Programmable Logic Control (PLC) as a controller. requires an exchange of rotating directions from the direction of turning right to turn left. The process of changing the direction of rotation of the motor requires dynamic braking, the braking process is carried out by injecting a DC current into the stator coil of an induction motor, which is related to PLC. By applying dynamic braking on a three phase induction motor it is obtained faster than without dynamic braking. The injection current is given to a 3-phase induction motor of 1 KW for dynamic braking of 2.2 A. The timing of the motor stops for a minimum load of 100 Watt without braking at 6.2 seconds and with braking of 4.4 seconds, for a maximum load of 600 W, without braking.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.