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Anggria L. - One of the best experts on this subject based on the ideXlab platform.
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PENINGKATAN PERTUMBUHAN KELAPA SAWIT DI PEMBIBITAN DENGAN PEMUPUKAN NPK / Increasing Growth of Oil Palm Seedling with NPK Fertilization
'Indonesian Agency For Agricultural Research and Development (IAARD)', 2017Co-Authors: Kasno Antonius, Anggria L.Abstract:Fertilization is a very important factor of production. Fertlizer on oil palm nurseries need to consider the soil used as a medium. Excessive or insufficient fertilization resulted in inferior growth. The aim of this research was to study the effects of compound fertilizer NPK 11-7-12 on the growth of oil palm seedlings and determine the optimum dose for oil palm nursery seedlings. The research was conducted in a greenhouse at Soil Research Institute, Laladon, Bogor, in October 2012 - June 2013. The design was randomized complete block, 6 treatments and 5 replications. The treatment consisted of 4 (1) NPK 11-7-12, (2) single NPK fertilizer (Urea, SP-36, KCl), (3) NPK 15-15-15, and (4) control treatment (without NPK). Doses of NPK fertilizer was 0.00, 2.50, 5.00, 7.50, and 10.00 g NPK/tree. Beside NPK fertilizer, each polybag was added with Kieserite 1 g/tree. Urea, SP-36, KCl, Kieserite and NPK was given 12 times. Fertilization was performed at 1 week after transplanting, and then performed every 2 weeks up to 12 times. The results showed that NPK fertilizer either single or compound able to increase the growth of oil palm plantations. Effect of NPK 11-7-12 fertilizer was the same with NPK 15- 15-15 and better than the single NPK fertilizer. The optimum dosage of NPK 11-7-12 fertilizer for oil palm seedling is 5 – 6 g/tree.Keywords: compound NPK, palm oil, inceptisols, seedlings AbstrakPupuk merupakan faktor produksi yang sangat penting. Pemberian pupuk pada pembibitan kelapa sawit perlu mempertimbangkan tanah yang digunakan sebagai media. Pemupukan yang berlebihan atau kurang berakibat kurang baik dan pertumbuhan bibit kelapa sawit kurang optimum. Penelitian bertujuan untuk menganalisis pengaruh pupuk majemuk NPK 11-7-12 terhadap pertumbuhan kelapa sawit di pembibitan dan menentukan dosis optimum untuk pembibitan kelapa sawit. Penelitian dilakukan di rumah kaca Balai Penelitian Tanah di Laladon, Bogor, pada Oktober 2012 - Juni 2013. Rancangan percobaan menggunakan acak kelompok, 7 perlakuan dan 5 ulangan. Perlakuan terdiri dari 4 dosis pupuk NPK 11-7-12, perlakuan pupuk NPK tunggal (Urea, SP-36 dan KCl), dan pupuk NPK 15-15-15, serta kontrol (tanpa NPK). Dosis pupuk majemuk NPK 11-7-12 adalah: 0,00; 2,50; 5,00; 7,50 dan 10,00 g NPK/pohon. Selain pupuk NPK setiap polibag ditambah 1 g pupuk kieserit/pohon. Pupuk Urea, SP-36, KCl, kieserit dan NPK diberikan sebanyak 12 kali. Pemupukan dilakukan pada saat tanaman berumur 1 minggu setelah tanam, selanjutnya dilakukan setiap 2 minggu sampai 12 kali aplikasi. Hasil penelitian menunjukkan bahwa pupuk NPK baik tunggal maupun majemuk mampu meningkatkan pertumbuhan tanaman kelapa sawit. Pengaruh pupuk NPK 11-7-12 sama dengan pupuk NPK 15-15-15 dan lebih baik dibandingkan dengan pupuk NPK tunggal. Takaran optimum pupuk NPK 11-7-12 untuk bibit kelapa sawit adalah 5-6 g/pohon.Kata kunci: NPK majemuk, kelapa sawit, Inceptisols, bibi
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Peningkatan Pertumbuhan Kelapa Sawit Di Pembibitan Dengan Pemupukan Npk / Increasing Growth of Oil Palm Seedling with Npk Fertilization
Indonesian Ministry of Agriculture, 2016Co-Authors: Kasno A., Anggria L.Abstract:Fertilization is a very important factor of production. Fertlizer on oil palm nurseries seed to consider the soil used as a medium. Excessive or insufficient fertilization resulted in inferior growth. The aim of this research was to study the effects of compound fertilizer NPK 11-7-12 on the growth of oil palm seedlings and determine the optimum dose for oil palm nursery seedlings. The research was conducted in a greenhouse at Soil Research Institute, Laladon, Bogor, in October 2012 -June 2013. The design was randomized complete block, 6 treatments and 5 replications. The treatment consisted of 4 (1) NPK 11-7-12, (2) single NPK fertilizer (Urea, SP-36, KCl), (3) NPK 15-15-15, and (4) control treatment (without NPK). Doses of NPK fertilizer was 0.00, 2.50, 5.00, 7.50, and 10.00 g NPK/tree. Beside NPK fertilizer, each polybag was added with Kieserite 1 g/tree. Urea, SP-36, KCl, Kieserite and NPK was given 12 times. Fertilization was performed at 1 week after transplanting, and then performed every 2 weeks up to 12 times. The results showed that NPK fertilizer either single or compound able to increase the growth of oil palm plantations. Effect of NPK 11-7-12 fertilizer was the same with NPK 15- 15-15 and better than the single NPK fertilizer. The optimum dosage of NPK 11-7-12 fertilizer for oil palm seedling is 5 - 6 g/tree
M S K Enio - One of the best experts on this subject based on the ideXlab platform.
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impact of mg rich synthetic gypsum application on the environment and palm oil quality
Science of The Total Environment, 2019Co-Authors: A. R. Sahibin, Wan Mohd I Razi, Jusop Shamshuddin, Che Ishak Fauziah, O. Radziah, M S K EnioAbstract:Abstract A study was conducted in an oil palm plantation in Peninsular Malaysia to elucidate the effects of applying Magnesium Rich Synthetic Gypsum (MRSG), a by-product of chemical plant, on the chemical properties of soil, the uptake of heavy metals by the palm trees, the oil quality and its impact on the surrounding environment. The results showed that MRSG application onto soil cropped to oil palm could bring positive impact in terms of soil chemical properties and oil palm production. The quality of the oil was not significantly affected by the continuous MRSG application as shown by the low heavy metals and trace elements of concern content (Cu: 0.062 mg/kg; Fe: 2.10 mg/kg; Mn: 1.93 mg/kg; Pb: 0.006 mg/kg; Zn: 0.103 mg/kg; Cr: 0.354 mg/kg; Ni: 0.037 mg/kg). From the I-geochem index, the soil was found to have values ranging from −3.81 to −1.03 which is considered as uncontaminated. Further, its application did not result in negative impact on the surrounding environment; hence, the quality of the soil and surface water in the plantation and/or the surrounding area remained intact. Phytotoxic elements in the oil palm tissue (As: 0.12 mg/kg; Se: 0.05 mg/kg; Zn: 1.48 mg/kg; Ce: 0.47 mg/kg; La: 0.26 mg/kg; Sr: 3.03 mg/kg) and cytotoxic elements in the oil were below the acceptable limit. Based on the results of the Environmental Monitoring out during the period of the study, it was concluded that application of the by-product of the chemical plant as a source of Mg to enhance soil fertility in the oil palm plantation was considered safe and sustainable. The effects of applying MRSG and Chinese Kieserite was almost similar. So, MRSG can be used as a possible source of Mg to replace Chinese Kieserite for oil palm production on the Ultisols in Peninsular Malaysia.
R E Arvidson - One of the best experts on this subject based on the ideXlab platform.
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23. D. C. Catling
2020Co-Authors: R E Arvidson, F Poulet, J.-p Bibring, M Wolff, A Gendrin, R V Morris, J J Freeman, Y Langevin, N Mangold, G BellucciAbstract:with underlying gypsum and minor deposits of carbonates at the base. Kieserite and other K or Mg salts are minor components appearing at the top of the sequence. We can outline the large accumulation of Kieserite of the Zechstein basin of the Permian epoch and the deposition of magnesium sulfates in the currently drying Aral Sea
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mars reconnaissance orbiter and opportunity observations of the burns formation crater hopping at meridiani planum
Journal of Geophysical Research, 2015Co-Authors: R E Arvidson, E. A. Guinness, J F Bell, Jeffrey G Catalano, B C Clark, V K Fox, R Gellert, J P Grotzinger, K E Herkenhoff, Andrew H KnollAbstract:Compact Reconnaissance Imaging Spectrometer for Mars hyperspectral (1.0–2.65 µm) along-track oversampled observations covering Victoria, Santa Maria, Endeavour, and Ada craters were processed to 6 m/pixel and used in combination with Opportunity observations to detect and map hydrated Mg and Ca sulfate minerals in the Burns formation. The strongest spectral absorption features were found to be associated with outcrops that are relatively young and fresh (Ada) or preferentially scoured of dust, soil, and coatings by prevailing winds. At Victoria and Santa Maria, the scoured areas are on the southeastern rims and walls, opposite to the sides where wind-blown sands extend out of the craters. At Endeavour, the deepest absorptions are in Botany Bay, a subdued and buried rim segment that exhibits high thermal inertias, extensive outcrops, and is interpreted to be a region of enhanced wind scour extending up and out of the crater. Ada, Victoria, and Santa Maria outcrops expose the upper portion of the preserved Burns formation and show spectral evidence for the presence of Kieserite. In contrast, gypsum is pervasive spectrally in the Botany Bay exposures. Gypsum, a relatively insoluble evaporative mineral, is interpreted to have formed close to the contact with the Noachian crust as rising groundwaters brought brines close to and onto the surface, either as a direct precipitate or during later diagenesis. The presence of Kieserite at the top of the section is hypothesized to reflect precipitation from evaporatively concentrated brines or dehydration of polyhydrated sulfates, in both scenarios as the aqueous environment evolved to very arid conditions.
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sulfates in martian layered terrains the omega mars express view
Science, 2005Co-Authors: A Gendrin, F Poulet, J.-p Bibring, Y Langevin, N Mangold, C Quantin, B Gondet, G Bonello, John F Mustard, R E ArvidsonAbstract:The OMEGA/Mars Express hyperspectral imager identified hydrated sulfates on light-toned layered terrains on Mars. Outcrops in Valles Marineris, Margaritifer Sinus, and Terra Meridiani show evidence for Kieserite, gypsum, and polyhydrated sulfates. This identification has its basis in vibrational absorptions between 1.3 and 2.5 micrometers. These minerals constitute direct records of the past aqueous activity on Mars.
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spectral reflectance and morphologic correlations in eastern terra meridiani mars
Science, 2005Co-Authors: R E Arvidson, F Poulet, J.-p Bibring, A Gendrin, R V Morris, Y Langevin, N Mangold, Michael J Wolff, John J Freeman, G BellucciAbstract:The Mars Express Observatoire pour la Mineralogie, l9Eau, les Glaces, et l9Activite (OMEGA) hyperspectral image data covering eastern Terra Meridiani indicate the ubiquitous presence of molecular water in etched terrain materials that disconformably overlie heavily cratered terrains and underlie the hematite-bearing plains explored by the Opportunity rover. Identification of crystalline water in Kieserite (MgSO4·H2O) is linked to materials exposed in a valley and plateau to the north of hematite-bearing plains. The mineralogical similarities between the etched terrain deposits examined with OMEGA data and the layered rocks examined by Opportunity imply that the ancient aqueous environments inferred from analyses of the rover data extend over regional scales.
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Sulfates in Martian Layered Terrains: The OMEGA/Mars Express View,
Science, 2005Co-Authors: Aline Gendrin, Brigitte Gondet, G Bonello, Nicolas Mangold, Jean-pierre Bibring, Yves Langevin, François Poulet, Cathy Quantin, John Mustard, R E ArvidsonAbstract:The OMEGA/Mars Express hyperspectral imager identified hydrated sulfates on light-toned layered terrains on Mars. Outcrops in Valles Marineris, Margaritifer Sinus, and Terra Meridiani show evidence for Kieserite, gypsum, and polyhydrated sulfates. This identification has its basis in vibrational absorptions between 1.3 and 2.5 micrometers. These minerals constitute direct records of the past aqueous activity on Mars.
C S Jamieson - One of the best experts on this subject based on the ideXlab platform.
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the spectral variability of Kieserite mgso4 h2o with temperature and grain size and its application to the martian surface
Journal of Geophysical Research, 2014Co-Authors: C S Jamieson, E Noe Z Dobrea, J B Dalton, Karly M Pitman, William AbbeyAbstract:We spectrally characterize (λ = 0.35–10 µm) the low-humidity polymorph of Kieserite (MgSO4·H2O), which is abundant on Mars and likely present on Europa, at various grain sizes and temperatures (100–300 K) relevant to the surfaces of Mars and Europa. Compositional analysis of these surfaces often relies on remote sensing using imaging spectrometers such as Mars Reconnaissance Orbiter Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), Mars Express Observatoire pour la Mineralogie, l'Eau, les Glaces et l'Activite, and Galileo Near-Infrared Mapping Spectrometer. To estimate surface abundances from these observations, well-characterized laboratory spectra are required for comparison. Several variables, including temperature and grain size, affect the observed spectra and must be quantified in the laboratory to more confidently evaluate the returned data. Certain spectral features of Kieserite exhibit predictable variability with changes in temperature and grain size that may be exploited to better understand the nature of Kieserite on the surface of Mars. For instance, trends in our spectral analysis suggest that absorption features centered at λ 3.0 µm were additionally sensitive to grain size changes. We compare our laboratory spectra with selected CRISM data of suspected Martian Kieserite and assess the inherent uncertainty that exists in using band center minima to determine surface composition. Incorporation of these temperature and grain size-specific spectra into linear mixture models of planetary surface spectra will improve the compositional interpretation and contribute to our understanding of surface geochemistry and chemical evolution.
Winarno Wahyu - One of the best experts on this subject based on the ideXlab platform.
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Respon Pertumbuhan dan Hasil Tanaman Kentang (Solanum tuberosum L.) Terhadap Pemberian Naungan dan Pupuk Kieserite di Dataran Medium
'Politeknik Negeri Jember', 2018Co-Authors: Purnomo Dedi, Damanhuri Fnu, Winarno WahyuAbstract:Pengembangan budidaya kentang perlu dilakukan untuk meningkatkan hasil produksi nasional, salah satu langkahnya yaitu dengan mengembangkan kentang di dataran medium 300 sampai 700 m dpl. Penelitian ini bertujuan untuk mengembangkan teknologi budidaya kentang pada dataran medium melalui pengaplikasian pupuk Kieserite (Mg) dan naungan. Pelaksanaan penelitian di mulai dari bulan Agustus 2016 sampai dengan bulan Desember 2016. Penelitian ini menggunakan rancangan acak kelompok (RAK) faktorial yang terdiri dari dua faktor. Faktor pertama yaitu pupuk Kieserite terdiri dari lima taraf : 0 kg/ha, 50 kg/ha, 100 kg/ha, 150 kg/ha, dan 200 kg/ha. Faktor kedua yaitu naungan dengan kerapatan 60% dan tanpa naungan. Hasil analisis data menunjukkan penggunaan naungan dengan kerapatan 60% berpengaruh sangat nyata pada tinggi tanaman umur 14 HST, 28 HST, dan 42 HST, luas daun 42 HST, serta berpengaruh sangat nyata terhadap jumlah umbi persampel, berat umbi persampel dan tidak berpengaruh nyata pada jumlah cabang tanaman. Perlakuan pupuk Kieserite (Mg) memberikan pengaruh nyata pada jumlah cabang tanaman umur 42 HST, tetapi tidak berpengaruh terhadap tinggi tanaman umur 14 HST, 28 HST, dan 42 HST, luas daun 42 HST, jumlah umbi persampel, berat umbi persampel. Interaksi antara naungan dan pupuk Kieserite (Mg) tidak memberikan pengaruh nyata pada tinggi tanaman, luas daun, jumlah cabang, jumlah umbi, dan berat umbi, hal ini diduga karena kurang sesuainya dosis dan intensitas pemberian pupuk Kieserite (Mg) yang di aplikasikan.Pengembangan budidaya kentang perlu dilakukan untuk meningkatkan hasil produksi nasional, salah satu langkahnya yaitu dengan mengembangkan kentang di dataran medium 300 sampai 700 m dpl. Penelitian ini bertujuan untuk mengembangkan teknologi budidaya kentang pada dataran medium melalui pengaplikasian pupuk Kieserite (Mg) dan naungan. Pelaksanaan penelitian di mulai dari bulan Agustus 2016 sampai dengan bulan Desember 2016. Penelitian ini menggunakan rancangan acak kelompok (RAK) faktorial yang terdiri dari dua faktor. Faktor pertama yaitu pupuk Kieserite terdiri dari lima taraf : 0 kg/ha, 50 kg/ha, 100 kg/ha, 150 kg/ha, dan 200 kg/ha. Faktor kedua yaitu naungan dengan kerapatan 60% dan tanpa naungan. Hasil analisis data menunjukkan penggunaan naungan dengan kerapatan 60% berpengaruh sangat nyata pada tinggi tanaman umur 14 HST, 28 HST, dan 42 HST, luas daun 42 HST, serta berpengaruh sangat nyata terhadap jumlah umbi persampel, berat umbi persampel dan tidak berpengaruh nyata pada jumlah cabang tanaman. Perlakuan pupuk Kieserite (Mg) memberikan pengaruh nyata pada jumlah cabang tanaman umur 42 HST, tetapi tidak berpengaruh terhadap tinggi tanaman umur 14 HST, 28 HST, dan 42 HST, luas daun 42 HST, jumlah umbi persampel, berat umbi persampel. Interaksi antara naungan dan pupuk Kieserite (Mg) tidak memberikan pengaruh nyata pada tinggi tanaman, luas daun, jumlah cabang, jumlah umbi, dan berat umbi, hal ini diduga karena kurang sesuainya dosis dan intensitas pemberian pupuk Kieserite (Mg) yang di aplikasikan
