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All Journal Jurnal Solum SRIWIJAYA JOURNAL OF ENVIRONMENT
Bakri Bakri
Universitas Sriwijaya
Agriculture, Biological Sciences & Forestry Energy Environmental Science Public Health

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Quality Of Physical Properties Chemical Liquid Organic Fertilizer from Tofu Liquid Waste With Banana Hump Mole Decomposer Dwi Probowati Sulistyani; A. Napoleon; Bakri Bakri; Warsito Warsito
Sriwijaya Journal of Environment Vol 8, No 1 (2023): NATURAL RESOURCES MANAGEMENT
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22135/sje.2023.8.1.58-63

Abstract

Liquid organic fertilizer is a fertilizer that is available in liquid form, liquid organic fertilizer can be interpreted as a fertilizer that is made naturally through a fermentation process so as to produce a solution of decay from plant residues. Liquid organic fertilizer is better to use because it is free from chemicals and has a good impact on health. The purpose of this research is to study the manufacturing technique and to determine the physical and chemical properties of liquid organic fertilizer from tofu liquid waste with banana hump mole decomposer. The research method is experimental. This research was conducted at the compost house and the Laboratory of Chemistry, Biology and Soil Fertility, Department of Soil Science, Faculty of Agriculture, Sriwijaya Indralaya University, Ogan Ilir. This activity was carried out in May - June 2022. The results obtained are the quality of the physical properties of liquid organic fertilizer from tofu liquid waste with banana hump moles with an average temperature of 26 to 29 degrees, yellow (8/8) 10YR color, characteristic sour smell, and TSS around 5132 – 5879 mg/liter. The quality of the chemical properties of liquid organic fertilizers is the average pH 3.62 – 3.72: N 7.98 – 8.22%, P 0.002%, K 0.03%
Evaluasi Penataan Air Mikro terhadap Kualitas Air di Daerah Reklamasi Rawa Pasang Surut, Pulau Rimau – Sumatera Selatan NABILLA MEILASARI; Bakri Bakri
Jurnal Solum Vol 23 No 2 (2026): Jurnal Solum
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/solum.v23i2.335

Abstract

Tidal lowland reclamation areas generally experience water quality constraints due to high acidity and dissolved metal content, thereby requiring proper micro water management. This study aimed to evaluate the effect of micro water management on water quality in the reclaimed tidal swamp area of Pulau Rimau, South Sumatra. The research was conducted using a field observation method by applying water gate management at secondary and tertiary canals. Water quality parameters observed included pH, electrical conductivity (EC), and dissolved iron (Fe). Measurements were carried out periodically every two days for one month using portable pH meter, EC meter, and Fe test kit. The results showed that water pH ranged from 3.0 to 6.3, indicating acidic conditions, while EC values ranged from 1.15 to 1.99 mmhos cm⁻¹ and tended to increase during water retention periods. Dissolved Fe concentrations were generally low and mostly undetected during the observation period. Regression analysis indicated that rainfall had a moderate relationship with pH (R² = 0.530), but showed a very weak relationship with EC (R² = 0.001). These findings indicate that rainfall was more dominant in controlling water quality dynamics than micro water management treatments. Therefore, micro water management alone was insufficient to significantly improve water quality without integration with other land and water management strategies.
Co-Authors A. Napoleon Dwi Probowati Sulistyani NABILLA MEILASARI Warsito Warsito