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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu Tanah dan Lingkungan Journal of Tropical Soils Journal of Degraded and Mining Lands Management Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat BIOVALENTIA: Biological Research Journal
Indriyati, Lilik Tri
Department Of Soil Science And Land Resources, Bogor Agricultural University, Jl. Meranti, Kampus Dramaga, Bogor, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology

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Loss of Soil Organic Matter, Lignocellulose and Microbial Population in Oil Palm Plantations Located at Different Slopes Dewi, Rika Andriati Sukma; Indriyati, Lilik Tri; Sahari, Bandung; Sabiham, Supiandi
JOURNAL OF TROPICAL SOILS Vol. 22 No. 3: September 2017
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2017.v22i3.175-181

Abstract

Loss of soil organic matter can be caused by erosion triggered by soil compaction and high rainfall. The aims of  the study were to determine (1) the loss of soil organic matter, lignocellulose, and soil microbial population due to erosion and (2) the contribution of organic matter from oil palm fronds. In the current study, the erosion plots were built on the accessible inter-row (gawangan hidup) and inaccessible inter-row (gawangan mati) of oil palm plantations located at the slope of 6-10% and >10%. Soil organic matter, lignin, cellulose, and hemicellulose contents and total soil microbial populations were measured in the sediments collected from the erosion plots. The results showed that the loss of organic matter was higher in the accessible inter-row than that in the inaccessible inter-row. The addition of lignin, cellulose, and hemicellulose from oil palm fronds into the soil are 2.06 Mg ha-1 yr-1, 1.13 Mg ha-1 yr-1 and 1.02 Mg ha-1 yr-1, respectively. Total bacterial population in the sediments taken from the accessible inter-row was higher than that from the inaccessible inter-row, while the total fungal population in the sediments from the inaccessible inter-row was higher than that from the accessible inter-row.  
Characteristics of Soil Chemical Properties Associated with Inceptisols in Various Land Use in Jasinga, Bogor Rahmayuni, Erlina; Anwar, Syaiful; Nugroho, Budi; Indriyati, Lilik Tri
JOURNAL OF TROPICAL SOILS Vol. 28 No. 3: September 2023
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2023.v28i3.89-97

Abstract

Inceptisols are soils with low to moderate fertility and have not experienced further development. This study aims to characterize the chemical properties of inclusions and base exchange fractionation of P of soil on Inceptisol soil map units of forest land, dry land, and paddy fields in Jasinga. Soil samples were taken at three horizons (Ao or Ap, AB/B1, and B/Bt) on forest soil profiles and dry land, while on paddy fields, they were taken at a depth of 0-20 cm, 20-40 cm, and 40-60 cm from the surface land. The chemical properties of the soil analyzed were soil pH, C-organic, soil bases, P-total, CEC, base saturation, and P fractionation. The results showed that the chemical properties of inclusions in the Inceptisol Jasinga soil map unit included high CEC and BS and low Mn-dd. The dominant soil inclusions are in paddy fields, followed by forests, and the lowest is in dry land. The chemical properties findings did not significantly differentiate the available inorganic P, Al-P, (Fe, Mn)-P, and (Ca, Mg)-P fractions. The inclusion of chemical characteristics did not result in a reversal of the correlation with the inorganic P fraction.
Dampak Pertanian Organik dan Konvenional pada Biodiversitas dan Sifat Kimia Tanah pada Budi Daya Tanaman Padi Sawah Lilik Tri Indriyati; Sugeng Santoso; Enjeline Irianti
Jurnal Ilmu Pertanian Indonesia Vol. 29 No. 3 (2024): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.29.3.331

Abstract

The phenomenon of leveling off and environmental degradation that occurs as a negative impact of the excessive use of chemical fertilizers and pesticides encourages the development of organic farming systems that can produce crop yields that are not contaminated and free from synthetic chemicals and maintain a healthier environment. The research was conducted from October to December 2022 by taking soil samples from farmers' paddy fields in Tegal Regency using an organic (Cawitali Village) and conventional or non-organic (Jembayat Village) farming system. Composite soil samples were taken from a soil depth of 0 to 20 cm from the soil surface using a soil drill on lowland rice fields with organic farming systems and conventional farming after harvest. The analysis of the chemical properties of the soil carried out was C-organic (Walkley and Black), N-total (Kjeldahl), CEC and soil bases (exch-Ca, exch-Mg, exch-K, and exch-Na), total P (25% HCl) and available P (Bray I), while the observed soil biological properties were the total number of microbial and fungal populations. The results showed that organic paddy soil's chemical and biological properties were relatively higher than conventional paddy soil's. Total fungi in organic lowland soils were lower than in conventional paddy fields. The nutrient status of C-organic and N-total in organic rice fields tended to increase compared to conventional rice fields, namely from very low to low and low to moderate, respectively. In contrast, the other nutrient statuses observed tended to remain relatively unchanged. Generally, soil biological and chemical properties were better in organic farming than in conventional farming systems. Keywords: leveling off, organic farming, conventional farming, nutrient status
Efektivitas Mikoriza dan Fosfor dari Batuan Fosfat pada Pertumbuhan dan Hasil Terong Ungu (Solanum melongena L.) Lilik Tri Indriyati; Marsya Muthya Zahran; Arwani Maulida Yusra
Jurnal Ilmu Tanah dan Lingkungan Vol 27 No 1 (2025): Journal of Soil Science and Environment
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.27.1.51-55

Abstract

Dalam percobaan ini dilakukan penelitian pengaruh pupuk hayati mikoriza dan batuan fosfat terhadap pertumbuhan dan hasil tanaman terong (Solanum melongena L.) dengan takaran pupuk yang berbeda. Pupuk hayati mikoriza diberikan ke tanah sebesar 0, 10, dan 20 g per lubang tanam, sementara batuan fosfat yang telah dihaluskan diberikan ke tanah sebesar 0, 45, dan 90 kg P2O5/ha. Interaksi antara mikoriza dan batuan fosfat nyata meningkatkan tinggi tanaman terong, bobot rata-rata terong per buah, dan hasil terong dibandingkan dengan tanpa pemberian pupuk. Aplikasi mikoriza nyata meningkatkan tinggi tanaman terong dan bobot rata-rata terong per buah, sedangkan aplikasi batuan fosfat hanya nyata memengaruhi tinggi tanaman terong. Pada perlakuan tanpa batuan fosfat dengan takaran dua kali mikoriza menunjukkan bahwa bobot rata-rata terong per buah nyata lebih tinggi daripada tanpa aplikasi mikoriza. Hal ini menunjukkan bahwa mikoriza mempunyai pengaruh positif terhadap pertumbuhan dan hasil terong dan pada ketersediaan fosfor bagi tanaman terong.
Co-Authors . Sudarsono Ajang Christrianto Arwani Maulida Yusra Asdar Iswati Atang Sutandi BANDUNG SAHARI Bandung Sahari Budi Nugroho Budi Nugroho Budi Nugroho Eko Noviandi Ginting Enjeline Irianti Erlina Rahmayuni, Erlina Fahrizal Hazra Gunawan Djajakirana Gunawan Sutio Hadi, Muhammad Nurul HAPPY WIDIASTUTI Happy Widiastuti Hartono, Arif Heru Bagus Pulunggono I Nyoman Sujana Iskandar, Iskandar Iswandi Anas Kukuh Murtilaksono Latifah Kosim Darusman LATIFAH KOSIM DARUSMAN Marsya Muthya Zahran Mulyawan, Ronny Neng Elin Novianti Parjono Parjono Purwakusuma, Wahyu Putri Tria Santari Rika Andriati Sukma Dewi Rykson Situmorang Rykson Situmorang Septi Ichwani Septiyana, . Sisworo, Widjang Herry Sri Djuniwati Sudarsono Sugeng Santoso Supiandi Sabiham Syaiful Anwar Widjang Herry Sisworo Zulfajrin, Moh