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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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Transformasi Nitrogen dalam Tanah Tergenang: Aplikasi Jerami Padi dan Kompos Jerami Padi Lilik Tri Indriyati; Supiandi Sabiham; Latifah Kosim Darusman; Rykson Situmorang; . Sudarsono; Widjang Herry Sisworo
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 Rika Andriati Sukma Dewi; Lilik Tri Indriyati; Bandung Sahari; Supiandi Sabiham
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.  
Improvement of growth and yield of organic broccoli (Brassica oleracea var. Italica) by application of different organic materials combination Lilik Tri Indriyati; Budi Nugroho
Jurnal Ilmu Tanah dan Lingkungan Vol 24 No 2 (2022): Jurnal Ilmu Tanah dan Lingkungan
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.24.2.110-115

Abstract

Pot experiment was conducted to evaluate the effect of organic materials combination on improvement of growth and yield of organic broccoli. There were 19 treatments in total consisted of four types organic materials that were azolla (A), vermicompost (V), cow dung (S), and chicken manure (F) applied in combination, blank control, and inorganic fertilizer as comparison standard. The experiment results showed that application of organic materials combination significantly increased the growth of plant, diameter head and yield of broccoli compared with untreated soil and inorganic fertilizer treatment. The addition of dolomite into the organic materials combination tended to decrease the growth and yield of broccoli than no addition of dolomite. However, the addition of chicken manure into the combination showed higher growth and yield of broccoli. The best combination of organic materials in raising the growth and yield of broccoli was azolla, and chicken manure (A+F).
Detoksifikasi Aluminium dan Ketersediaan Fosforus dalam Tanah Masam Melalui Aplikasi Bahan Organik Lilik Tri Indriyati; Budi Nugroho; Fahrizal Hazra
Jurnal Ilmu Pertanian Indonesia Vol. 28 No. 1 (2023): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.28.1.10

Abstract

Organic matter that is usually quite widely available around farmers' land can be one of the solutions in overcoming the problem of soil acidification and nutrient deficiencies in tropical highly weathered soils. However, one of the main problems in utilizing such organic matter on acidic soils is the diversity of its chemical composition, which affects the decomposition of the organic matter. In this study, a mixture of soil with five types of organic matter was incubated, namely cow manure, chicken manure, rice straw, legume plant residue, and their combination, with doses equivalent to 0, 7.5 and 15 tons/ha. Mixtures of soil with organic matter were incubated for 120 days under conditions of field capacity moisture. The aim was to evaluate the amelioration effect of the organic matter on soil acidification (exchangeable-Al and soil pH), available P, and phosphatase activity. The application of organic matter type and dose has a marked effect on decreasing the content of exchangeable Al and increasing soil pH, P-available, and phosphatase activity. Chicken manure application showed the best effect in lowering soil exchangeable-Al and increasing pH, available-P, and phosphatase activity. Keywords: amelioration, manure, phosphatase
Efektivitas Aplikasi Amonium Klorida dan Sumber Kalium Berbeda pada Pertumbuhan dan Produksi Jagung Manis (Zea mays saccharata Sturt) Ajang Christrianto; Lilik Tri Indriyati; Heru Bagus Pulunggono
Jurnal Ilmu Pertanian Indonesia Vol. 28 No. 2 (2023): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.28.2.283

Abstract

Nitrogen (N) fertilizer of the urea type is very commonly used in Indonesia. The demand for this fertilizer is expected to increase, so an alternative is needed as a complement. Ammonium chloride (NH4Cl) is a by-product produced in the soda ash industry. This compound contains 26% N, which can be an alternative source of N nutrients for plants. The level of the following element, namely chlorine (Cl), is relatively high, so it is a concern that might affect the plant growth. This field experiment aimed to evaluate the effect of the application of ammonium chloride combined with potash fertilizers on the growth, production, and uptake of N and Cl nutrients in sweet corn plants. The trial was designed in a randomized group with nine treatments of 0%, 100%, 150%, and 200% N, combined with potassium sources from KCl and K2SO4. As a comparison, the source of N is urea at a dose of 100% N is referred to as the standard N treatment. Parameters observed included plant height, the weight of corn cobs and corn stover, N and Cl nutrient uptakes in seeds, leaves, and stems. The results showed that the application of ammonium chloride combined with different K sources markedly affected plant height, cob and plant stover weight, and N and Cl uptakes of sweet corn compared to controls. Applying N-ammonium chloride with KCl and K2SO4 showed no significant effect in growth and yield compared to standard N. The N dose showed no significant effect on plant growth and yield compared to the standard N dose. Keywords: by-product, nitrogen fertilizer, soda ash
ENDOPHYTIC TESTING OF Serratia marcescens strain NPKC3_2_21 AGAINST INPARA 3 RICE VARIETY Gunawan Sutio; Iskandar Iskandar; Lilik Tri Indriyati; Gunawan Djajakirana
BIOVALENTIA: Biological Research Journal Vol. 9 No. 1 (2023)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.9.1.2023.372

Abstract

Pest management is a crucial concern, especially when dealing with insect pests that can cause extensive damage to agricultural crops and the economy. One such pest is the rice stem borer (Scirpophaga innotata), which infests rice stems and poses a significant threat. To combat these pests, various microbial agents have been developed for effective pest control. Among these, the endophytic microbe in biological plant protection plays a key role in the program of sustainable pest management. An endophytic bacterium, Serratia marcescens strain NPKC3_2_21, has been identified as a key player in sustainable pest management, particularly in rice crops. In this study, we aimed to investigate the endophytic characteristics of S. marcescens strain NPKC3_2_21 in the swamp rice plant of the Inpara 3 variety of swamp rice plants. To establish its roles. Marcescens as an endophytic bacterium in rice plants, specifically the Inpara 3 variety, we conducted tests by inoculating bacteria on the plant tissue of rice plants that have been sterilized rice plant tissues with the bacteria. We assessed the presence of S. marcescens strain NPKC3_2_21 in plant tissues by applying isolates to the surface of rock wool, which supported the growth of wet rice plants aged ten or over ten days or older after planting. Samples were collected from the underside of the stem, the bottom of the leaves, and the roots on days 2, 7, and 14 after the application of isolates to the rock wool. The samples were then washed in 70% alcohol and 4% chlorox for 30 seconds and subsequently isolated on Luria Bertani (LB) agar media. Furthermore, we conducted tests to determine the ligninolytic, cellulolytic, and proteolytic activities of S. marcescens, which helped elucidate its endophytic ability. Based on the result, the endophytic capabilities. Based on the results, we found that S. marcescens strain NPKC3_2_21 exhibited endophytic characteristics solely in the stem tissue of the Inpara 3 rice variety. However, we did not observe its presence in the root and leaf tissues.
Characteristics of Soil Chemical Properties Associated with Inceptisols in Various Land Use in Jasinga, Bogor Erlina Rahmayuni; Syaiful Anwar; Budi Nugroho; Lilik Tri Indriyati
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.
Factors regulating lignocellulolytic microbes, their degrading enzymes, and heterotrophic respiration in oil palm cultivated peatlands Hadi, Muhammad Nurul; Pulunggono, Heru Bagus; Indriyati, Lilik Tri; Widiastuti, Happy; Zulfajrin, Moh
Journal of Degraded and Mining Lands Management Vol. 11 No. 2 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.112.5195

Abstract

Even though their role in mediating tropical peat decomposition and GHG emissions had been widely recognized, information concerning lignocellulolytic microbes, their degrading enzyme ability, and interconnection with soil physicochemical properties and peat heterotrophic respiration on mature oil palm plantation/OPP block level were rudimentary. This study evaluated the effect of sampling depth (0-30, 30-60, and 60-90 cm), OPP management zone (fertilization circle/FTC, frond stack/FRS, and harvesting path/HVP), and peat physicochemical properties on the lignocellulolytic bacteria and fungi, their degrading enzymes activities and peat heterotrophic respiration/Rh using principal component analysis/PCA, multiple linear regression/MLR, and generalized linear mixed effect models/GLMM. This study found that the soil microbiological and physicochemical properties varied widely. Dominant lignocellulolytic bacterial population and their cellulase enzyme activity were higher than fungi, regardless of sampling depth and management zone. PCA and GLMM analyses showed the significant importance of sampling depth and management zone in governing lignocellulolytic microbial population, their enzyme activities, and Rh. Microbial population and cellulase activity were also remarkably affected by the interaction of all studied factors. Peat chemical properties (pH and total Mn) controlled the natural variance of lignocellulolytic microbes and their enzymes, whereas total K regulate Rh. This study suggested that the research on microbiological-related GHG mitigation in OPP should be focused on managing the fungal population and cellulase enzyme activity at the peat surface (0-30 cm) and fertilization circle.
Dampak Pertanian Organik dan Konvenional pada Biodiversitas dan Sifat Kimia Tanah pada Budi Daya Tanaman Padi Sawah Indriyati, Lilik Tri; Santoso, Sugeng; Irianti, Enjeline
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
Remediasi Tanah Tercemar Timbal dan Kadmium Menggunakan Fly Ash dan Bahan Organik Darmawan; Indriyati, Lilik Tri; Ginting, Ina Febria
Jurnal Ilmu Tanah dan Lingkungan Vol 26 No 2 (2024): Jurnal Ilmu Tanah dan Lingkungan
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.26.2.66-71

Abstract

Agricultural soils that are close to industrial areas are prone to be polluted by lead (Pb) and cadmium (Cd) caused by industrial waste. Soil remediation is a method to clean the soil from pollutant materials. Utilizing fly ash and organic matter is a way to reduce levels of Pb and Cd pollution in the soil. This research was conducted to study the effect of ameliorants on reducing the availability of Pb and Cd in soil. The greenhouse experiment was carried out using a randomized block design with the application of 3 types of ameliorants, namely fly ash, chicken manure, and cow manure. The experimental design was prepared with 2 dose levels, namely C: control; F1: 450g; F2: 600g; A1: 75g; A2: 105g; S1: 105g; S2: 135g; FAS1: 450 g+75 g+105 g; FAS2: 600g+105g+135g. Each treatment was repeated 3 times to obtain 27 experimental units. The experimental results showed that the effect of the treatment of fly ash, chicken manure, and cow manure significantly increased soil pH, KB, C-organic, and exchangeable bases as well as reduced levels of availability of Pb and Cd compared to controls. The use of single fly ash (F1 and F2) reduces the availability of Pb in the soil, while the available Cd decreased in the application of a combination of fly ash with chicken and cow manure (FAS1 and FAS2). The application of fly ash alone was able to reduce the availability of Pb and Cd which was higher than of chicken manure and cow manure alone. However, the provision of fly ash has not been able to increase the growth of kale plants. Keywords: Cd, fly ash, chicken manure, cow manure, Pb, remediation
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