Roro Kesumaningwati
Mulawarman University

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

Found 2 Documents
Search

Peranan Kompos Sampah Pasar Dengan Bioaktivator Mol Dan Trichoderma Terhadap Peningkatan Sifat Biologi Tanah Bekas Tambang Batubara Roro Kesumaningwati; Nurul Puspita Palupi
Agrifarm : Jurnal Ilmu Pertanian Vol 7 No 2 (2018): December
Publisher : Universitas Widya Gama Mahakam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24903/ajip.v7i2.430

Abstract

The former coal mines experienced biological changes that caused biodiversity loss compared to natural ecosystems. Habitats decline dramatically when changes from natural ecosystems to open land occur. The frequency of land processing due to land reclamation activities has a major impact on soil organisms. Coal mining activities result in a decrease in the population of microorganisms and the activity of soil fauna, mainly due to changes in soil temperature, humidity, and the amount and quality of organic matter. This research was conducted for 1 (one) fiscal year. This research includes the making of microorganism solutions, Trichoderma enrichment, composting from market waste with bioactivator moles and trichoderma, incubating ex-coal mine land by utilizing compost, and analyzing the total population of soil microorganisms. The results showed that 1. There was an increase in the population of microorganisms in the soil that were applied to market waste compost, 2. Mushrooms found on ex-coal mine land that were applied with market waste compost with Trichoderma bioactivator, and banana weed MOL were: Aspergillus, Trichoderma, Fusarium, Mucor, Phytium, and Gliocladium, while the bacteria found were basil gram (-) Azotobacteraceae and cocci gram (-) Azotobacteraceae.
Optimizing organic waste and tillage for post-mining soil rehabilitation with response surface methodology ZAINUDIN ZAINUDIN; DYAH ROESWITAWATI; ADI SUTANTO; ALI IKHWAN; RORO KESUMANINGWATI
Asian Journal of Agriculture Vol. 9 No. 2 (2025)
Publisher : Smujo International

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g090241

Abstract

Abstract. Zainudin, Roeswitawati D, Sutanto A, Ikhwan A, Kesumaningwati R. 2025. Optimizing organic waste and tillage for post-mining soil rehabilitation with response surface methodology. Asian J Agric 9: 739-753. Rapid urban population growth has significantly increased Municipal Organic Waste (MOW) generation, creating ecological challenges but also opportunities for sustainable land rehabilitation. In Samarinda, East Kalimantan, Indonesia, post mining degradation is a critical environmental issue that requires innovative restoration strategies. This study examined the application of MOW as a soil amendment, combined with Soil Tillage (ST), to improve chemical properties of degraded post-mining soils. A Box-Behnken design under Response Surface Methodology (RSM) was used to evaluate the effect of tillage depth (5-15 cm), Incubation Time (IT) (60-120 days) and waste dosage (20-60 t ha-1), resulting in 17 treatment combinations. The MOW included food scraps, vegetable residues, and fruit waste, excluding fish and shrimp residues. Soil analysis covered pH, Organic Carbon (OC), Total Nitrogen (TN), C/N ratio, available phosphorous (P), potassium (K), Cation Exchange Capacity (CEC), and Base Saturation (BS). The optimal condition was identified at 15 cm tillage depth, 103.48 days incubation, and 36.48 t ha-¹ waste, resulting in improvements in the characteristics of post–coal mining soil (pH: 7.43; OC: 1.26%; TN: 0.17%; C/N: 7.58; P: 36.34 ppm; K: 168.73 ppm; CEC: 15.54 me 100-¹ g; BISA: 96.61.