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All Journal Agrovigor: Jurnal Agroekoteknologi JTSL (Jurnal Tanah dan Sumberdaya Lahan) Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Jurnal Counsellia Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) MASAGI ( Jurnal Pendidikan Agama Islam )
Sri Rahayu Utami
Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Education Engineering Environmental Science Social Sciences Other

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Soil macroporosity, physical properties and nutrient leaching after forest conversion to rubber and oil palm plantation in an Acrisol of Jambi, Indonesia Utami, Sri Rahayu; Kurniawan, Syahrul; Agustina, Christanti; Corre, Marife De
Journal of Degraded and Mining Lands Management Vol. 9 No. 1 (2021)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2021.091.3155

Abstract

Soil degradation is expected to continue as forest conversion into other land uses increases significantly. In Indonesia, Jambi is one of the main areas for the development of oil palm and rubber, whichare mainly converted from the forest. As a base for better management, we attempted to study macro-porosity in rubber and oil palm plantation, in comparison to secondary forests.  Four landuse systems (secondary forest, jungle rubber, rubber plantation and oil palm plantations) in Bukit Duabelas, Sarolangun District, Jambi Province, Sumatera, were selected for this study. The number of macropores in vertical or horizontal planes and their related factors (root mass, litter thickness, % organic C, bulk density, water content at pF 0 and pF 2.54, aggregate stability) were measured within the soil profiles. Forest conversion to jungle rubber, rubber and oil palm plantation led to a decrease of macro-porosity in the soil profile, especially in the upper 50 cm. Macropores, both at vertical and horizontal planes in the secondary forest was significantly higher than other landuses. Horizontal macropores in jungle rubber were higher than rubber and oil palm plantation, but not the vertical macropores. Among the soil properties measured, litter thickness, coarse root dry mass (Ø >2 mm), mesopores and aggregate stability were closely associated with soil macro-porosity. However, macro-porosity in the soil profile was insignificantly correlated to soil bulk density and % organic C. Increasing the number of horizontal macropores resulted in higher nutrient leaching, especially K and Na.
Soil chemical properties in agroforestry and cassava cropping systems in Pati, Central Java Setyastika, Ursulin Sacer; Utami, Sri Rahayu; Kurniawan, Syahrul; Agustina, Christanti
Journal of Degraded and Mining Lands Management Vol. 9 No. 4 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.094.3635

Abstract

Changes in natural land use for monoculture cropping systems may affect the soil properties over a certain period of time. In an attempt to evaluate soil chemical properties in the cassava cropping system, the research was conducted in Pati Regency, Central Java. Four land use systems were compared, i.e. monoculture cassava (cultivated for 5, 10, and 15 years) and agroforestry systems in two different slopes (i.e., 8-15% and 16-40%), with four replications. Soil samples from each location were taken at a depth of 0-20 and 21-40 cm for soil chemical analysis (pH, cation exchange capacity, organic C, total N, available P, exchangeable K, Ca, and Mg). Soils in agroforestry systems had higher pH, CEC, the content of organic C, total N, exchangeable K, Ca and Mg than in cassava cropping systems, especially on the slope of 8-15%. The soil under 15 years cassava and on the slope of 16-40% had the most degraded soil chemical properties, as reflected by the lowest content of organic C, total N, exchangeable K, and slightly lower CEC and the content of exchangeable Ca and Mg. Soil chemical properties on the slopes of 8-15% were significantly better than on the slopes of 16-40%, especially in CEC and the content of organic C, total N, exchangeable K and Mg. However, there was an unclear pattern of the available P content, which was possibly due to the application of P fertilizer in cassava cropping systems.
Co-Authors Abda Abda Agus Ria Kumara Albarki, Georona Kusma Alda Inayah A. Hi. Usman Ayyu Rahayu Bonauli Christianoyd Siahaan Budi Prasetya Christanti Agustina Corre, Marife D. Corre, Marife De DEWO RINGGIH Dhina Mustikaningrum Didik Suprayogo Eko Handayanto Fajriyah, Azizatul Kurniawan Sigit Wicaksono Lia Nova Triadriani M. Luthfi Rayes Marife De Corre Mochtar Luthfi Rayes Muhamad Afif Akbar Mukharomah, Miftakhul Navarette, Ian A. Novalia Kusumarini Novalia Kusumarini Novalia Kusumarini Nur Fadillah Aunur Rofiq Oktari Hermita Putri Oktaviani Putri Lestari Permatasari, Wulan Pilya Tri Oktafiani Putri Winda Asih R Muhammad Yusuf Adi Pujo Nugroho Reni Ustiatik Retno Suntari Rinovian Tri Saputra Salamudin, Ceceng Setyastika, Ursulin Sacer Silvia Febiona Siti Partini Suardiman Sizilia, Vannya Julia Syahrul Kurniawan Ulyan Khalif Ursulin Sacer Setyastika Usman, Alda Inayah A. Hi. Veldkamp, Edzo Wahyu Nanda Eka Saputra, Wahyu Nanda Eka Yessika Evalyana Sinaga Bonor Yu-Min, Wang Yulia Nuraini Zaenal Kusuma