Article Per Year (5 Year)
p-Index From 2019 - 2024
0.408
P-Index
This Author published in this journals
All Journal Indonesian Journal of Science and Technology Asean Journal of Science and Engineering (AJSE)
S. Sukamto
Hokkaido University
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Engineering Environmental Science Materials Science & Nanotechnology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Evaluation of FTIR, Macro and Micronutrients of Compost from Black Soldier Fly Residual: in Context of Its Use as Fertilizer S. Sukamto; Ali Rahmat
ASEAN Journal of Science and Engineering Vol 3, No 1 (2023): AJSE: March 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i1.42798

Abstract

The extensive use of chemical inorganic fertilizers promotes the degradation of agricultural land quality and leads to various environmental contaminations. Owing to these problems, the alternative way called “organic farming” has been developed through the use of organic fertilizers including compost.  In this study, compost product obtained from composting process by using larvae as the biological agent has been prepared. Macronutrients (i.e. N, P, K, Ca, and Mg) and micronutrients (i.e. Mn, Fe, Cu, Zn, and Ni) have been determined using Inductively Coupled Plasma-Optical Emission Spectrometry, Walkey and Black method, Kjeldahl method, and P Bray-1 method, which showed sufficient content and meet the standard value. Analysis and the comparative study showed that the compost product can be used as a fertilizers substitute. The compost from residual offers more economic, great availability, and environmentally friendly fertilizers for agricultural purposes.
Biochar from Agricultural Waste for Soil Amendment Candidate under Different Pyrolysis Temperatures Abdul Mutolib; Ali Rahmat; Endra Triwisesa; H. Hidayat; Hari Hariadi; Kiki Kurniawan; S. Sutiharni; S. Sukamto
Indonesian Journal of Science and Technology Vol 8, No 2 (2023): (ONLINE FIRST) IJOST: September 2023
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v8i2.55193

Abstract

Indonesia as an agricultural country produces and consumes a huge amount of fruits. One of the popular fruits is durian (Durio zibethinus), which can create issues with the high amount of durian seeds. Durian seeds can be fermented quickly. Thus, if they are not processed immediately, it causes pollution to the environment, particularly an odor issue. One of the waste management is to convert durian seed waste into biochar, an ameliorant agent to improve soil quality. This study aims to analyze the physicochemical properties of durian seed-derived biochar under different pyrolysis temperatures. The results showed that the increases in the temperature allowed the creation of more porosity in the biochars, which is due to chemical structure and crystallinity arrangement. This is confirmed by the increases in surface area and total pore volume also decreases in particle size. The change in the chemical structure can be verified by the decreases in the biochar yield. The produced biochar from fruit seeds has excellent carbon content and elemental components such as potassium, magnesium, phosphor, and sulfur, informing prospective fruit seeds as a soil amendment fertilizer
Co-Authors Abdul Mutolib Ali Rahmat Ali Rahmat Endra Triwisesa H. Hidayat Hari Hariadi Kiki Kurniawan Sutiharni