Peer reviu dari 2 doktor untuk paper intl judul:Characteristics and Potential Usage of Dissolved Silica in Rice Cultivation in Sumani Watershed, Sumatra, Indonesia

Aflizar, Aflizar (2020) Peer reviu dari 2 doktor untuk paper intl judul:Characteristics and Potential Usage of Dissolved Silica in Rice Cultivation in Sumani Watershed, Sumatra, Indonesia. X checker 18%.

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Abstract

Plagiarism Checker X Originality Report Similarity Found: 18% Date: Wednesday, September 30, 2020 Statistics: 953 words Plagiarized / 5191 Total words Remarks: Low Plagiarism Detected - Your Document needs Optional Improvement. ------------------------------------------------------------------------------------------- Pertanika J. Trop. Agric. Sci. 39 (4): 601 - 615 (2016) Characteristics and Potential Usage of Dissolved Silica in Rice Cultivation in Sumani Watershed, Sumatra, Indonesia Hiroaki Somura1*, Darmawan2, Kuniaki Sato1, Makoto Ueno1, Husnain3, Aflizar 4 and Tsugiyuki Masunaga1 1Shimane University, Faculty of Life and Environmental Science, 1060 Nishikawatsu, Matsue, Shimane 6908504, Japan 2Andalas University, Faculty of Agriculture, Padang 25163, West Sumatra, Indonesia 3Indonesian Soil Research Institute, Bogor 16114, West Java, Indonesia 4State Polytechnic Payakumbuh for Agriculture, Payakumbuh 26271, West Sumatra, Indonesia ABSTRACT Research on watershed silica dynamics in Indonesia has been sparse as most of the focus on water environment has centred on suspended sediments, nitrogen and phosphorous. Thus, Si concentrations in rivers and their seasonal and spatial variations are not well understood. Silicon helps rice plants to overcome abiotic and biotic stresses by preventing lodging and increasing resistance against pests and diseases. Rice is one of the more important crops in the country, and information on Si concentrations in rivers is useful because river water is a primary irrigation source. In this study, we conducted a preliminary research on temporal and spatial variations in dissolved Si (DSi) concentrations at watershed scale to help an use Si through water The Sumani Watershed, located approximately 50 km east of Padang City in West Sumatra, Indonesia, was selected as the target area. Lake Dibawah lies on the upstream end of the watershed, and water is discharged from the watershed into Lake Singkarak. The results verified Lake had dam of reducing concentrations water. In addition, the average DSi concentration from the samples obtained from rivers, small channels, and ditches from October 2013 to December 2014 did not show strong seasonal patterns at

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