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All Journal Journal of Tropical Soils JTSL (Jurnal Tanah dan Sumberdaya Lahan) Journal of Applied Agricultural Science and Technology Jurnal HPT (Hama Penyakit Tumbuhan) Jurnal Pengabdian Masyarakat Biologi dan Sains Jurnal Riset Kajian Teknologi dan Lingkungan
Kurniawan Sigit Wicaksono, Kurniawan Sigit
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Physics Social Sciences Other

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PENGARUH TUTUPAN LAHAN DAN CURAH HUJAN TERHADAP SIFAT FISIK TANAH SERTA DEBIT MATA AIR DI HUTAN CEMPAKA, PASURUAN, JAWA TIMUR Utami, Rossi Widhi; Lestariningsih, Iva Dewi; Wicaksono, Kurniawan Sigit; Anggara, Akmaludin Dimas; Lathif, Sarifudin
Jurnal Tanah dan Sumberdaya Lahan Vol. 11 No. 1 (2024)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2024.011.1.29

Abstract

Climate change causes forest fires that impact land cover damage, which can cause damage to soil properties and disrupt hydrological characteristics such as loss of spring or discharge depletion. This study aimed to assess the influence of land cover and rainfall on soil physical properties and spring discharge in the Cempaka Forest area. The study was conducted on three land covers, i.e., shrubs, pine, and non-timber forest products (NTFPs) in the Cempaka Forest area, Curah Tangkil Block, Pasuruan Regency, East Java Province. The measured parameters were soil bulk density, permeability, porosity, infiltration, daily rainfall, and spring discharge. Data analysis used analysis of variance (ANOVA) test at a 5% level, correlation test, and regression. The results showed that differences in land cover had no significant effect on soil physical properties. The correlation and regression results between rainfall and spring discharge showed that rainfall influenced spring discharge by 4%. The correlation and regression results in the medium-heavy rainfall categories influenced spring discharge by 38%.
PENGARUH PEMANGKASAN TAJUK TANAMAN KOPI DAN PEMUPUKAN TERHADAP PENCUCIAN UNSUR HARA PADA SISTEM AGROFORESTRI KOPI Nurcholis, Omar; Wicaksono, Kurniawan Sigit; Fata, Yulia Amirul; Kurniawan, Syahrul
JTSL (Jurnal Tanah dan Sumberdaya Lahan) Vol. 13 No. 1 (2026)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2026.013.1.8

Abstract

Tree management such as pruning of coffee canopy and fertilization in coffee-based agroforestry systems plays a crucial role in reducing nutrient losses through leaching. This study aims to evaluate the impact of coffee pruning and fertilization management on nutrient leaching. The study was conducted in a coffee agroforestry system in the Universitas Brawijaya forest from February to August 2023. This study used a split-split plot design with main plots of coffee canopy pruning (T1: pruned coffee, T2: unpruned coffee), subplots of fertilizer type (O: organic fertilizer, A: inorganic fertilizer, M: 50% organic + 50% inorganic), and sub-plots of fertilizer dosage (D1: dosage based on farmer practice, D2: recommended dosage based on the Coffee and Cocoa Research Center, D3: dosage based on the replacement of nutrients removed by the coffee bean harvest). The study had 18 treatments with 4 replicates, resulting in 72 experimental plots. The variables measured included ammonium, nitrate, phosphorus, and potassium concentrations. Sampling of nutrient leaching was conducted four times over a period of six months (February-July), specifically in February, March, April, and July 2023 at 0.5 m distance from the coffee stem in 0.6 m depth of soil. The results showed that pruning coffee plants had a significant effect (P < 0.05) on nutrient losses due to leaching, especially nitrate and potassium. A pruned coffee canopy in an agroforestry system was able to reduce nitrate and potassium leaching by 30% and 13%, respectively, compared to unpruned coffee in the agroforestry land. Nutrient loss of phosphorus through leaching was found to be 21% greater in treatment D1 compared to D2. However, this study did not find a significant effect of the interaction between pruning and fertilization in reducing the leaching of nitrogen, phosphorus, and potassium nutrients.
Co-Authors Aditya Nugraha Putra, Aditya Nugraha Anggara, Akmaludin Dimas Brian Rahardi Cahyo Prayogo, Cahyo Christian, Bertolomius Medy Dian Siswanto Didik Suprayogo Ermawati, Ermawati - Fata, Yulia Amirul Habib, Raihan Ieke Wulan Ayu Ifadah, Nisfi Fari’atul Istika Nita Iva Dewi Lestariningsih, Iva Dewi Kristiawati, Wanda Lathif, Sarifudin Lestari, Nina Dwi Luchman Hakim Melati Julia Rahma Mewar, Filza Roholesi Mochammad Munir Nurcholis, Omar Riza, Sativandi Rohani, Rosesita Tri Suci Sahiruddin Sahiruddin Sektiono, Antok Wahyu Sukbara, Ghozian Putra Syahrul Kurniawan Utami, Rossi Widhi Wang, Yumin Zaenal Kusuma