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All Journal Jurnal Ilmu Pertanian Indonesia MEDIA KONSERVASI Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Journal of Tropical Soils Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) SAINS TANAH - Journal of Soil Science and Agroclimatology Caraka Tani: Journal of Sustainable Agriculture Jurnal Penelitian Kelapa Sawit CELEBES Agricultural

Heru Bagus Pulunggono

A Department Of Soil Science And Land Resource, Faculty Of Agriculture, IPB University, IPB Darmaga Campus, Bogor, 16680, Indonesia

Author-ID : 2549105

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science

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Ethonobotany of People Live in Amarasi of Kupang, Mollo and Amanatun of South Central Timor, West Timor, Indonesia Heru Bagus Pulunggono
Media Konservasi Vol 6 No 1 (1999): Media Konservasi
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Studi ethnobotani. khususnya hubungan antara penduduk dengan hutan telah dilakukan di Amarasi, Kabupaten Kupang; Mollo dan Amanatun.Kabupaten Tinior Tengah Selatan. Penduduk desa umulnnya adalah suku Dawan. Rumah-rumah di lokasi menipunyai pekarangan dan berdekatan. Desadesaini biasanya dikelilingi oleh kebun, ladang, dan hutan pada batas luarnya. Pemahaman penduduk tentang lingkungan dan konservasinya telah ada dan dilakukan secara baik sejak dahulu. Penduduk memanfaatkan hutan sebagai sumber untuk obat-obatan tradisional, pemenuhan kebutuhan sehari-hari seperti kayu bakar, makanan ternak dan kayu bangunan. Mereka niengambil tun~buhanu ntuk obat tradisional. daun dan kulit kayu merupakan bagian yang palingbanyak digunakan kenludian getah, akar dan kayu. Untuk kayu bakar adalah jenis pohon yang dianggap tidak berguna untuk penggunaan lain, sedangkan jenis pohon untuk kayu bangurlan lebih spesifik dibandingkan untuk penggunaan kayu bakar. Anggota suku Leguminosae dan Meliaceae digunakan secara luas dala~np embangunan rumah, demikian juga gewang (Corypha rrtan) yang daunnya digunakan untuk atap rumah. Makanan ternak yang penting adalah kabesak (Acacia leucophloea), gala-gala (Sesbania grandiflora) dan petis (Leucaena leucochephala)"

Traditional Bee Honey Harvesting in West Timor, Indonesia Heru Bagus Pulunggono
Media Konservasi Vol 7 No 1 (2000): Media Konservasi
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Studi tentang pemanenan madu secara tradisional dalam hal kondisi sosial - lingkungan telah dilakukan di pusat penghasil madu di Amfoang Selatan, Kabupaten Kupang dan Mollo Selatan dan Utara, Kabupaten Timor Tengah Selatan. Metode yang digunakan dalam studi ini adalah kombinasi survei lapang dan interview terstmhr. Dari hasil pcnelitian ini, menunjukkan bahwa penghasil madu umumnya daerah terpencil dan hutan tempat pohon madu merupakan hutan tutupan adat. Distribusi pohon madu berbeda antara daerah tinggi dan daerah rendah. Pohon madu yang umum ditemui antara lain b o ~ k(T etrameles nudijlora), kabesak (Acacia leucophloea), neke (Gossampinus malabarica), nitas (Sterculia foetida), angkai (Albizzia chinensis), beringin (Ficus benyamina) dan kapuk (Ceiba pentandra). Musim panen madu ada dua yaitu Juni - Juli dan September - Oktober. Nektar dan polen umumnya berasal dari ampupu (Eucalyptus urophylla) dan hue (Eucalyptus albu), jambu air (Eugenia spp) dan kosarnbi (Schleicera oleosa). Pemilik pohon madu inisecara tradisional berpartisipasi dalam menjaga hutan. Pemanenan, konservasi dan distribusi pohon madu masih dilakukan secara adat. Hasil madu mempunyai kontribusi yang cukup penting bagi penduduk untuk memenuhi kebutuhan hidupnya

THE STATUS OF SOIL PHOSPHORUS AT DIFFERENT CROPPING SYSTEM IN PANGALENGAN, SOUTH BANDUNG Sri Djuniwati; Heru Bagus Pulunggono
Jurnal Ilmu Tanah dan Lingkungan Vol 11 No 2 (2009): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

The fixation of P in soils is dynamic in nature and the behavior of P-fraction may change with time and cropping system. Application of organic matter to soil under upland soil have been reported to decrease P-sorption and increase P-desorpion. Pangalengan, South Bandung in west Java is one of the wet humid area of Indonesia that has high rain fall, covered mainly by tropical humid forest, volcanic area with fertile volcanic soil. The objective of this study were to describe and compare some chemical characteristic and behavior of P-fraction as a function of crops and slope of the land in the farming system in Pangalengan, South Bandung, West Java, Indonesia. Soil samples from the surface soil (0-20 cm) were collected from 15 locations based on different planted crops (Tea, Vegetables, Forest, and Intercropping crops), and level of slope of the land areas of Cihawuk village, District Kertasari, Kecamatan Pangalengan. The result of the study showed that C-organic content of soil samples from 15 location of planted crops was slightly high (3.04-4.92 %) but total Nitrogen was low (0.22-0.45 %), wih soil reaction (pH H2O) was slightly acids (5.60-6.30) and pH (KCl) was lower than pH(H2O) (4.60-5.70). The available-P was low (3.50 – 7.10 ppm), but the HCl 25 % P　from tea and vegetables location was higher than from forest and intercropping crops. Majority of P fraction from tea and vegetable location was Al-P fraction, but from Forest and intercropping crops was Ca-P fraction. The order of P fraction were Al-P > Ca-P> reductant soluble-P>Fe-P in tea and vegetables locations, but in the forest and intercropping were Ca-P> reductant-P > Al-P > Fe-P. However, The data showed that the total P (P-organic + P-inorganic) from tea and vegetables crop location was higher, and was dominated by inorganic form, than from forest and intercropping location was dominated by organic form. However, the slope did not affect the pattern of P-fractions and the sources of organic matter added or accumulated in those location formerly affected the amount and the pattern of P-fractions.

Seasonal litter contribution to total peat respiration from drained tropical peat under mature oil palm plantation Heru Bagus Pulunggono; Siswanto Siswanto; Husni Mubarok; Happy Widiastuti; Nizam Tambusai; Moh Zulfajrin; Syaiful Anwar; Darmono Taniwiryono; Basuki Sumawinata; Supiandi Sabiham
Journal of Degraded and Mining Lands Management Vol 9, No 2 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.092.3247

The amount of CO2 gas emissions in drained peatland for oil palm cultivation has been widely reported. However, the research addressing the contribution of litter respiration to peat and total respiration and its relationship with several environmental factors is found rare. The aim of this study was to measure peat and heterogeneous litter respiration of drained tropical peat in one year at a distance of 2.25 m and 4.50 m from mature oil palm trees of 14 years using the chamber method (Licor Li-830). In addition to CO2 efflux, we measured other environmental parameters, including peat temperature (10 cm depth), air temperature, groundwater table (GWL), and rainfall. Results showed that the mean total peat respiration (Rt) was 12.06 g CO2 m-2day-1, which consisted of 68% (8.24 g CO2 m-2day-1) peat (Rp) and root (Rr) respiration and 32% (3.84 g CO2 m-2day-1) of litter respiration (Rl) at the distance of 2.25 m from the palm tree. Meanwhile, at a farther distance, the Rt was 12.49 g CO2m-2day-1, the contribution of Rp was 56% (6.78 g CO2 m-2day-1), and Rl was higher than the closest distance (46%; 5.71 g CO2 m-2day-1). Thus, one-year observation resulting the mean Rt and Rr was 0.07–0.08 Mg CO2 ha-1 day-1, while Rl was 0.04–0.06 Mg CO2 ha-1 day-1. The means of Rt, Rp, and Rl were significantly different in the dry season than those recorded in the rainy season. The climatic-related variable such as peat and air temperature were chiefly governing respiration in peat under mature oil palm plantation, whereas the importance of other variables present at particular conditions. This paper provides valuable information concerning respiration in peat, especially for litter contribution and its relationship with environmental factors in peatland, contributing to global CO2 emission.

Microbial proportion and heterotroph CO2 flux from drainage peatland under oil palm plantation Eka Lupitasari; Rahayu Widyastuti; Heru Bagus Pulunggono
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.2021.091.3055

The difference in soil layer can affect heterotroph respiration that means CO2 fluxes from microbial decomposition in peatlands. Oil palm plants release root exudates transported to other places, i.e., shrub, by water movement, which can stimulate microbial activity. This study was conducted to learn the effects of differences of the soil layer and distance from the trunk in drainage peatland under oil palm plantation on total bacteria, fungi, cellulolytic bacteria, ligninolytic fungi, and heterotroph fluxes CO2, then compared to a shrub. Heterotroph respiration decreased with soil layer depth, where at the layer 0-20 cm released amount of CO2 as much 6.07 + 1.76, at 20-40 cm was 5.18 + 0.50, and at 40-60 cm 5.27 + 1.20 mg CO2 100 g-1 day-1, and tended higher than in shrub where a layer of 0-20 cm released 5.51 + 1.69, then decrease at 20-40 cm to 4.83 + 1.38, and at 40-60 cm 4.30 + 1.08 mg CO2 100 g-1 day-1. Total bacteria (107 CFU g-1) and fungi (105 CFU g-1) were higher than total cellulolytic bacteria (103 CFU g-1) and ligninolytic fungi (102 CFU g-1) in both under oil palm plantation and shrub. Organic acids affected the abundance of total bacteria and fungi but did not affect cellulolytic bacteria and ligninolytic fungi on both sites, as shown by a lower population and low cellulose and laccase enzymes. These findings showed that heterotroph CO2 flux tended higher in oil palm plantations and lignocellulolytic microbes are not the only source of heterotroph respiration.

Evaluating the changes of Ultisol chemical properties and fertility characteristics due to animal manure amelioration Heru Bagus Pulunggono; Vira Widya Kartika; Desi Nadalia; Lina Lathifah Nurazizah; Moh Zulfajrin
Journal of Degraded and Mining Lands Management Vol 9, No 3 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.093.3545

Amending Ultisols using organic matter encourages a paramount improvement in its chemistry and fertility characteristics. This study was aimed to evaluate the changes in soil chemical properties due to the animal manure amelioration in Ultisol in the Jasinga, Bogor, West Java, using classical and advanced statistical methods. Composite soil samples were collected then incubated with three types of animal manure (cow, chicken, and goat) and four rate levels (0, 2.5, 5, and 7.5% of dry weight). The dynamics of eleven soil variables (pH, organic C, total N, cation exchange complex/CEC, base saturation/BS, and exchangeable Al, H, Ca, Mg, K, and Na) were observed four times (0, 2, 4, and 6 weeks). Basic cation saturation ratio/BCSR and sufficiency level of available nutrients/SLAN soil fertility approaches were applied. Modeling comparison was done among multiple linear regression/MLR, machine learning/ML (tree regression/TR, random forest/RF, gradient boosting machine/GBM), and deep learning/DL (multilayer perceptron/MLP). Most of the soil chemical and fertility parameters exhibited strong relation among three applied factors. Generally, their values failed to reach the BCSR’s ideal soil and national SLAN’s sufficiency criteria; oppositely, they were categorized as sufficient based on the global SLAN approach. Multivariate analysis revealed the similarity among manure type and rate, whereas incubation time showed the opposite trend. MLR usage was convenient in modeling BS, pH H2O, and Al saturation. Meanwhile, CEC modeling requires more sophisticated methods. This study highlighted the possible improvement of Ultisol chemical properties and fertility characteristics by amending it with a higher rate and low C/N ratio of animal manure, and using ML to capture non-linear relationships in soil.

Assessing the distribution of total Fe, Cu, and Zn in tropical peat at an oil palm plantation and their relationship with several environmental factors Heru Bagus Pulunggono; Lina Lathifah Nurazizah; Moh Zulfajrin; Syaiful Anwar; Supiandi Sabiham
Journal of Degraded and Mining Lands Management Vol 9, No 2 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.092.3349

Extensive utilization of fragile tropical peatlands ecosystem encourages a better understanding of spatiotemporal micronutrients distribution. The distribution of total Fe, Cu, and Zn in peat and their relationship with environmental factors were studied under oil palm plantation, Pangkalan Pisang, Koto Gasib, Riau, Indonesia. Peat samples were taken compositely inside the block using a combination of six factors, including a) the oil palm age (<6, 6-15, >15 years old), b) the peat thickness (< 3 and >3 m), c) season (rainy and dry), d) the distances from the secondary canal (10, 25, 50, 75, 100, and 150 m), e) the distances from an oil palm tree (1, 2, 3, and 4 m), and f) the depth of sample collection (0-20, 20-40, and 40-70 cm from the peat surface). Total Fe, Cu, and Zn were determined by the wet digestion method. These micronutrients observed in this study possessed high variability; however, they were within the expected range in tropical peatland. The entire micronutrients were statistically different by oil palm age, peat thickness, and distance from canal. Meanwhile, total Cu and Zn were also significantly different at each season. The oil palm age, peat thickness, and distance from the canal were the common factors controlling total Fe, Cu, and Zn in peat significantly. Moreover, total Cu and Zn were also dictated by season, distance from the oil palm tree, and depth of sample collection. Based on visual interpretation in PCA (principal component analysis), all micronutrients were categorized into two groups, separated by 2 m distance from the oil palm tree and 20 cm depth from the soil surface. Our study also highlights the dominance of the dilution over the enrichment process in peat, which requires further research to formulate micronutrients fertilization, especially for an extended cultivation time.

The Changes of P-fractions and Solubility of Phosphate Rock in Ultisol Treated by Organic Matter and Phosphate Rock Sri Djuniwati; Budi Nugroho; Heru Bagus Pulunggono
JOURNAL OF TROPICAL SOILS Vol 17, No 3: September 2012
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2012.v17i3.203-210

Phosphorus (P) is one of the essential elements for plant, however, its availability is mostly very low in acid soils. It is well documented that application of phosphate rock and organic matter are able to change the level of availability of P-form in acid soils. The objective of the research were to evaluate the changes of P-fractions ( resin-P, NaHCO3-Pi, and NaHCO3-Po) and phosphate rock dissolution which were induced by application of organic matter (Imperata cylindrica, Pueraria javanica, dan Colopogonium mucunoides) and phosphate rock in Utisol Lampung. The experiment was designed in a completely randomized design with three factors and three replications. The first factor was the types of organic matter (I. cylindrica, P. javanica, and C. mucunoides), the second factor was the rate of organic matter (0, 2.5, and 5%), and the third factor was the rate of phosphate rock (0, 40, and 80 mg P kg-1). The results showed that in the rate of 0 and 1% organic matter, the type of organic matter did not affect P-fraction of NaHCO3-Pi, but in the rate of 2.5 and 5%, NaHCO3-Pi due to application of P. javanica, and C. mucunoides higher than due to application of I. cylindrica. However, the increasing rate of organic matter increased NaHCO3-Pi. Then, P-fraction of Resin-Pi was affected by the type of organic matter, the rate of organic matter, and the rate of phosphate rock, respectively. P-fraction of resin-Pi due to application of P. javanica, and C. mucunoides was higher than due to application of I. cylindrica, but the effect of P. javanica, and C. mucunoides was not different. Increasing the rate of organic matter and phosphate rock increased P-fraction of resin-Pi and NaHCO3-Pi, but P-fraction of NaHCO3-Po was not affected by all treatments. Meanwhile, dissolution of phosphate rock was affected by the kind of organic matter and soil reaction. In the rate of 5% organic matter, dissolution of phosphate rock by application of I. cylindrica (70%) was higher than P. javanica (26.6%), and C. mucunoides (33.5%), but in the rate of 1%, the effect of I. cylindrica , P. javanica, and C. mucunoides were not different.Keywords: C. mucunoides; I. cylindrica; P. javanica; phosphate rock; P-fractions[How to Cite: Djuniwati S, B Nugroho, and HB Pulunggono. 2012. The Changes of P-fractions and Solubility of Phosphate Rock in Ultisol Treated by Organic Matter and Phosphate Rock. J Trop Soils, 17: 203-210. doi: 10.5400/jts.2012.17.3.203][Permalink/DOI: www.dx.doi.org/10.5400/jts.2012.17.3.203]

Soil characteristics of post-mining reclamation land and natural soil without top soil Desi Nadalia; Heru Bagus Pulunggono
Journal of Degraded and Mining Lands Management Vol 7, No 2 (2020)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2020.072.2011

Generally, Nickel mining was conducted by the open-pit mining method which caused change of soil physical, chemical and biological properties. Reclamation land often experienced various obstacles, including microclimate conditions that were not yet suitable, overburden chemical, physical and biological properties, difficulty in obtained ameliorant, and lack of topsoil. Topsoil that was used for post-mining reclamation land activities was obtained from the soil is not yet mined locations (natural soil). This study was aimed to determine differences in soil characteristics (soil physical, chemical and biological properties) on post-mining reclamation land with natural soil without topsoil. The research used survey methods conducted on post-mining land of PT. INCO. Soil samples were taken at 2 locations, namely, the location of post-mining reclamation (Harapan) and location that had not mined but the topsoil had peeled to a depth of ± 1 meter (Shelly). The results showed that the soil physical and biological properties at Shelly location were relatively better than those at Harapan location. The soil at Harapan and Shelly locations had available P content and exchangeable-Na was low and exchangeable-Ca was very low. Exchangeable-Mg was high at Harapan, while at Shelly was low-moderate. The exchangeable-K content of the soil in the Harapan location was moderate than Shelly location. The soil at Harapan location had a very high Base Saturation (BS) with a pH of 6.7 than Shelly location had high BS with a pH of 5.8. It is necessary to improve post-mining reclamation land management.

Decomposition of Oil Palm Frond and Leaflet Residues Heru Bagus Pulunggono; Syaiful Anwar; Budi Mulyanto; Supiandi Sabiham
AGRIVITA, Journal of Agricultural Science Vol 41, No 3 (2019)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v41i3.2062

Frond and leaflet residues from pruning of oil palm which are applied as mulch on oil palm plantation will decompose and can be source of organic matter and some essential nutrients. Information about how much the released nutrients from the decomposition processes of frond and leaflet of oil palm is limited. The objective of this research was to study the period (two years) patterns of nutrient release and decomposition of frond and leaflet of oil palm at different burial depth (0 to 30 cm) in peat soil. Decomposition of frond and leaflet of oil palm did not have a different pattern in mass loss, chemical content changes of C/N, N content, P content, P released, however, it has different pattern in N released. During two years of decomposition, frond and leaflet lost 88% and 86% of its initial weight and released 51% and 83% of N, also it released P 87% and 93% respectively. Frond and leaflet from pruning of oil palm should be returned to plantation area for one source of nutrients beside fertilizer.

Co-Authors Adiani, Ditta Rahma Ajang Christrianto Anicetus Wihardjaka Anicetus Wihardjaka Arief Hartono Asy'Ari, Rahmat Asy’Ari, Rahmat Atang Sutandi Basuki Sumawinata Budi Mulyanto Budi Nugroho Budi Nugroho Chahyahusna, Affan Darmono Taniwiryono Denis Muba Pandapotan Simanihuruk Desi Nadalia Eka Lupitasari Erlina Rahmayuni, Erlina Fernando Sitorus, Alberth Fuadi Irsan Hadi, Muhammad Nurul Happy Widiastuti HAPPY WIDIASTUTI Herman, Welly Husni Mubarok Husni Mubarok Husni Mubarok Ilham Saputra Indriyati, Lilik Tri ISKANDAR Iskandar Iskandar Kurniati Kurniati Laksmita Prima Santi Laksono Trisnantoro Lina Lathifah Nurazizah Lina Lathifah Nurazizah Lina Lathifah Nurazizah Lina Lathifah Nurazizah Lina Lathifah Nurazizah Mas Teddy Sutriadi Moh Zulfajrin Moh Zulfajrin Moh Zulfajrin Moh Zulfajrin Moh Zulfajrin Moh Zulfajrin Moh Zulfajrin Moh Zulfajrin Nabila Hanifah Nabila Hanifah Nizam Tambusai Nizam Tambusai Nourma Al Viandari Nurazizah, Lina Lathifah Nurazizah, Lina Latifah Omo Rusdiana Pratiwi, Dea Pudjawati, Nihawa Hajar RAHAYU WIDYASTUTI Rivai, Fathan Aldi Safira Eka Aprianti Saputri, Hanum Resti Siswanto Siswanto Sri Djuniwati Sri Djuniwati Sri Wilarso Budi Supiandi Sabiham Syaiful Anwar Syamsul Arifin Syva Fitriana Vira Widya Kartika Yudi Setiawan Yusrizal Yusrizal Yusuf Azmi Madani Zulfajrin, Moh Zulfajrin, Moh.

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