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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) 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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Efektivitas Mikoriza dan Fosfor dari Batuan Fosfat pada Pertumbuhan dan Hasil Terong Ungu (Solanum melongena L.) Zahran, Marsya Muthya; Yusra, Arwani Maulida; Indriyati, Lilik Tri
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.
Effectivity of Soil Amelioration on Peat Soil and Rice Productivity Septiyana, .; Sutandi, Atang; Indriyati, Lilik Tri
JOURNAL OF TROPICAL SOILS Vol. 22 No. 1: January 2017
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2017.v22i1.11-20

Abstract

Peat soil amelioration has important role on improvement of soil peat fertility such as  on increasing soil pH,  reducing organic acid and toxic ions, and also increasing nutrients availability.  Soil amelioration with polyvalent cations (Fe Al Cu Zn) namely slag, lateritic soils, and river mud are effectively reducing harmful effect of phenolic acid. The objectives of the study were to determine the effect of soil amelioration on peat soil chemical properties, optimum temperature amelioran tras and dolomite to increase Si concentration in peat soil, also to determine the effect of soil amelioration on increasing crop productivity (both biomass and yield).  The study was consisted of two sets of experiments, namely soil incubation in the laboratory and greenhouse experiment with 4 replications of CRD (complete randomized design) plot design.  The result of the study showed that  the application of slag and dolomite are significantly different to increase pH, base saturation, and (Ca, Mg) content, meanwhile slag application was more complex and stable on improving chemical properties of peat soil.  Slag was also improving pH, KB, and Ca, Fe content  as well as silica and ash.  Tras and dolomite burning were not significantly different on increasing silica in peat soil. Slag application was significantly increased both dried crop biomass and yield on rice.  The best ameliorant was slag compared to tras, dolomite, and mixed tras dolomit with slag.Keywords: Ameliorant, organic acids, paddy, peat soil
Transformasi Nitrogen dalam Tanah Tergenang: Aplikasi Jerami Padi dan Kompos Jerami Padi Indriyati, Lilik Tri; Sabiham, Supiandi; Darusman, Latifah Kosim; Situmorang, Rykson; Sudarsono, .; Sisworo, Widjang Herry
JOURNAL OF TROPICAL SOILS Vol. 13 No. 3: September 2008
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2008.v13i3.189-197

Abstract

The use of organic materials aimed at reducing the dependence on inputs such as chemical fertilizers can contribute to sustainability and improving the low N fertilizer efficiency of rice plants in paddy soils.  Therefore, better understanding of N transformation in flooded soils, particularly the microbial transformation of N-organic amendments to plant-available N and gaseous N forms is needed for most efficient use of soil and organic materials N, for determining the potential of denitrification and for aiding in the selection of N management practices for sustainable agriculture.  The experiments were conducted in the laboratory and glasshouse of Soil Department, Faculty of Agriculture, Bogor Agricultural University.  An incubation experiment was conducted in the laboratory at room temperature during 120 d to analyze the mineralization-immobilization patterns in flooded soils amended with rice straw, rice straw composts 4 mo and 8 mo and their combinations with urea.  The first time of soil flooding, mineral N (N-NH4+ and N-NO3-) concentrations in all of the amended soils sharply decreased and those gradually increase since 7 d of incubation.  It might be due to the reduction of N-NO3- to N2O and N2, and immobilization.  This data was consistent with the data of N2O emission derived from pot experiment.  The high emission of N2O was observed at the first time of soil flooding of the amended soils, and the soils added rice straw showed the largest N2O emission than the other treatments. It might be due to the change of soil condition from aerobic to anaerobic condition, and the higher decomposable C as energy source for denitrifyer contained in rice straw.  Regardless the organic materials added to soils, the longer anaerobic condition, nitrification sharply decreased, so that nitrate availability limits denitrifications.decreased, so that nitrate availability limits denitrifications.
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.
Co-Authors . Sudarsono Ajang Christrianto Asdar Iswati Atang Sutandi Bandung Sahari BANDUNG SAHARI Budi Nugroho Budi Nugroho Budi Nugroho Darmawan Eko Noviandi Ginting Erlina Rahmayuni Erlina Rahmayuni, Erlina Fahrizal Hazra Ginting, Ina Febria Gunawan Djajakirana Gunawan Sutio Hadi, Muhammad Nurul HAPPY WIDIASTUTI Happy Widiastuti Hartono, Arif Heru Bagus Pulunggono I Nyoman Sujana Irianti, Enjeline Iskandar Iskandar Iswandi Anas Kukuh Murtilaksono Latifah Kosim Darusman LATIFAH KOSIM DARUSMAN 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 Yusra, Arwani Maulida Zahran, Marsya Muthya Zulfajrin, Moh