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All Journal BERKALA FISIKA Jurnal Planta Tropika
Achmad Supriyadi, Achmad
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Muhammadiyah Yogyakarta, Jl. Lingkar Selatan, Kasihan, Bantul, Yogyakarta 55183, Indonesia, Telp. 0274387656
Agriculture, Biological Sciences & Forestry Physics

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RANCANG BANGUN SISTEM KENDALI UNIT PENGOLAHAN AIR BERSIH BERBASIS ARDUINO UNO R3 DAN NEXTION Supriyadi, Achmad; Setyawan, Agus; Suseno, Jatmiko Endro
BERKALA FISIKA Vol 22, No 2 (2019): Berkala Fisika Vol. 22 No. 2 Tahun 2019
Publisher : BERKALA FISIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1416.039 KB)

Abstract

The control of the ordinary water treatment unit on refinery location is still operated manually(by operator), especially in the filtering unit (IRF unit). There are 9 manual block valves that must be operated every 8 hours, to keep the water quality meets its specification. Manual operation can increase the risk of errors or delays in the operation or movement of service cycles and regeneration sequences. Subsequently, it can decrease the water quality and unefficiency in production. The automation of the water treatment unit was made using the nextion HMI touch screen circuit, Arduino Uno microcontroller, IC shift register, electronic relay and other electronic components. By connection between the Nextion HMI as an interface and the Arduino Uno microcontroller as electronic relay controller, the design of the control unit was able to control the clean water treatment unit simulator in accordance with the principles of the processing unit.Keywords: Water treatment unit, nextion, arduino uno
Uji Efektivitas Berbagai Konsentrasi Pestisida Nabati Bintaro (Cerbera manghas) terhadap Hama Ulat Grayak (Spodoptera litura) pada Tanaman Kedelai Setiawan, Agus Nugroho; Supriyadi, Achmad
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 2, No 2 (2014)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2014.029.99-105

Abstract

Spodoptera litura is a major pest in soybean cultivation causing damage by 80%. One of control is done  by using bintaro plants (Cerbera manghas) potential as a botanical pesticide (insecticide). This study aims to determine the effectiveness of botanical pesticide from bintaro extract and get the precise extract concentration of fruit, young leaves, and old leaves of bintaro to control Spodoptera litura on soybean plants, and its influence to  the growth of soybean plants. This study used an experimental method that is designed in a single factor completely randomized design using pesticides Bintaro (young leaves, old leaves, and fruit), which consists of three concentrations (100 g / l, 200 g / l, and 300 g / l), add two treatments, namely, sprayed with water and a  synthetic pesticides as a control. Result showed the leaves and fruit of Bintaro at concentrations of 100 g/ l to 300 g/ l by solvent extraction has not been effectively used as botanical pesticide to control Spodoptera litura on soybean plants. Old leaf Bintaro extract (100 g/ l) produces highest pest mortality value and  rate of 40.00% and 2.00. The use of botanical pesticide from extract bintaro (fruit and leaf) is not inhibit the growth of soybean plants.
Co-Authors Agus Nugroho Setiawan, Agus Nugroho Agus Setyawan Jatmiko Endro Suseno