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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Reaktor Journal of Tropical Soils JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Agrotek Tropika Jurnal Tanah dan Iklim
Budi Nugroho
Departemen Ilmu Tanah Dan Sumbedaya Lahan, Fakultas Pertanian, Institut Pertanian Bogor, Kampus IPB Darmaga Bogor 16680
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology

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Estimation of the Potential Carbon Emission from Acrotelmic and Catotelmic Peats Siti Nurzakiah; Supiandi Sabiham; Budi Nugroho; Dedi Nursyamsi
JOURNAL OF TROPICAL SOILS Vol 19, No 2: May 2014
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2014.v19i2.81-89

Abstract

Agricultural development on peatland in Indonesia has been constrained by the presence of environment issues in relation to the release of greenhouse gases (GHGs) particularly carbon dioxide (CO2) and methane (CH4) to the atmosphere. This study was aimed to predict the potential carbon emission based on carbon stocks in acrotelmic and catotelmic peats with the reference of groundwater level of peatland.  The results showed that groundwater levels have played an important  role  in  carbon  release, which  has  close  relationship  with  water  regime  of  the upper  layer  of  peats  that influenced by oxidative and reductive conditions of the land.  From the layer that having groundwater level fluctuations during the period from rainy to dry season (acrotelmic peat), the emissions were mostly dominated by CO2 release, while from permanent reductive-layer (catotelmic peat) was not detected.  The decrease of groundwater level from -49.6 to -109 cm has clearly influenced carbon emission.  From each decreasing 1.0 cm groundwater level, CO2 emission measured during the period of February - October 2013 was calculated to yield about 0.37 Mg ha-1 yr-1.Keywords: Acrotelmic and catotelmic peat, carbon emission, groundwater level [How to Cite: Siti N, S Sabiham, B Nugroho and Di Nursyamsi. 2014. Estimation of the Potential Carbon Emission from Acrotelmic and Catotelmic Peats. J Trop Soils 19(2): 91-99. Doi: 10.5400/jts.2014.19.2.91]    
Fraksi Fosfor Tanah pada Lapisan Olah dan Korelasinya dengan Beberapa Sifat Kimia Tanah Hutan dan Perkebunan Kelapa Sawit di Jambi Desy Djata; Arief Hartono; Syaiful Anwar; Budi Nugroho
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 10 No. 2 (2020): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.10.2.209-219

Abstract

Perubahan penggunaan lahan hutan menjadi perkebunan kelapa sawit diduga mengubah distribusi fraksi fosfor (P) tanah. Penelitian ini bertujuan untuk mengevaluasi fraksi P pada lapisan permukaan tanah di lahan hutan dan perkebunan kelapa sawit di Jambi, serta korelasinya dengan sifat kimia tanah. Sampel tanah diambil dari lapisan atas tanah hutan dan perkebunan kelapa sawit. Beberapa sifat kimia tanah dan fraksi-fraksi P dianalisis. Fraksionasi P dilakukan dengan menggunakan metode Tiessen dan Moir. Hasil penelitian menunjukkan bahwa fraksi P agak labil yaitu NaOH-Porganik (-Po ) dan -Pinorganik (Pi) merupakan fraksi yang ditemukan dominan di hutan dan perkebunan kelapa sawit. Persentase P labil (resin-Pi, NaHCO3-Pi,-Po) dan P organik agak labil (NaOH-Po) dari total fraksi P ditemukan lebih tinggi di lahan hutan dibandingkan dengan perkebunan kelapa sawit. Fraksi NaOH-Pi di perkebunan kelapa sawit lebih tinggi nilainya dibandingkan dengan di hutan. Hal ini menunjukkan bahwa secara alami perubahan penggunaan lahan hutan menjadi kelapa sawit mengubah distribusi fraksi P sebagai akibat dari perubahan kandungan karbon (C) organik tanah. Analisis korelasi menunjukkan bahwa hampir semua fraksi P berkorelasi positif dengan C organik, mengidentifikasikan bahwa mineralisasi C organik mempengaruhi distribusi fraksi P yang artinya C organik tanah mengontrol distribusi fraksi P pada lapisan permukaan tanah di lahan hutan dan perkebunan kelapa sawit.
Dinamika fluks CO2 pada perkebunan kelapa sawit di lahan gambut M. Joehari Jamili; Budi Nugroho; Basuki Sumawinata; Syaiful Anwar
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 11 No. 3 (2021): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.11.3.430-441

Abstract

CO2 flux from peat soil planted with oil palm is temporally and spatially dynamic, which is related to various environmental factors. This flux can be partitioned into fluxes from oil palm root respiration, litter decomposition, and peat material decomposition. The aim of this study was to determine the temporal and spatial dynamics of CO2 fluxes, the contribution of oil palm roots respiration, the contribution of litter decomposition, and the relation between flux and environmental factors in oil palm plantations on peatland. Measurements of CO2 flux using an infrared gas analyzer (IRGA) were carried out in harvesting path and inter raw of oil palm plantation, and nearby bushland. Flux measurements were repeated every three to four days for almost five months. Results showed the dynamics of the CO2 fluxes temporally and spatially. Temporally, CO2 flux in oil palm plantation and bushland ranged from 2.9 – 11.1 and 0.5 – 6.4 g C-CO2 m2/day, respectively. Spatially, the flux in oil palm plantation and bushland ranged from 4.8 – 8.8 and 2.7 – 3.4 g C-CO2 m2/day, respectively. The contribution of oil palm roots respiration and litter decomposition were 48.4 and 5.8%, respectively. These results confirm that plant roots respiration plays an important role in the release of carbon from the soil surface.
Hubungan antara Karakteristik Tanah dan Produksi Tanaman Eucalyptus pellita Desi Nadalia; Atang Sutandi; Budi Nugroho; Sri Nico Djuniwati
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 37, No 2 (2013)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v37n2.2013.119-127

Abstract

Abstrak. Eucalyptus pellita merupakan jenis tanaman cepat tumbuh yang mempunyai potensi tinggi untuk industri pulp. Tanaman E. pellita diyakini mempunyai adaptibilitas yang baik pada tanah-tanah yang kurang subur, namun kenyataannya E. pellita tumbuh tidak optimal dan produktivitasnya masih rendah. Penelitian ini bertujuan untuk (i)menginvestigasi model hubungan karakteristik tanah dengan produksi tanaman dan (ii) menentukan kontribusi karakteristik tanah terhadap kelas produksi tanaman E. pellita. Penelitian ini berlangsung selama lima bulan mulai dari Desember 2012 sampai dengan April 2013. Penelitian menggunakan metode survei eksplorasi dengan mengumpulkan data karakteristik tanah dan produktivitas pohon aktual di lima distrik, yaitu: Rasau Kuning, Sorek, Malako, Nilo, dan Duri I di Provinsi Riau. Data diolah menggunakan analisis regresi linier berganda dan analisis diskriminan. Hasil analisis regresi linier berganda menunjukkan bahwa karakteristik tanah yang berpengaruh nyata dengan korelasi negatif terhadap produksi tanaman E. pellita yaitu: kalium dapat dipertukarkan (K-dd), Mg-dd, P-total, lereng, dan Al-dd, sedangkan Kejenuhan Basa (KB), N-total, dan kandungan liat berpengaruh nyata dengan korelasi positif. Berdasarkan analisis diskriminan, karakteristik tanah yang berkontribusi tinggi terhadap kelas produksi tanaman E. pellita, yaitu: K-dd, Kapasitas Tukar Kation (KTK), Al-dd, dan Mg-dd.
Respon Spektral Tajuk Jagung pada beberapa Perlakuan Pemupukan: Spectral Response of Maize Canopy to Several Fertilization Treatments Muhammad Ardiansyah; Budi Nugroho; Arival Al-Fajar
Jurnal Ilmu Tanah dan Lingkungan Vol 24 No 1 (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.24.1.25-31

Abstract

Early detection of plant nutrient status during the maize cycle is important to prevent yield loss and to optimize yield and quality. This study was conducted to analyze the spectral response of the maize canopy to 10 fertilization treatments including control using a spectroradiometer. In this study, the relationship between nutrient content and spectral response was focused on leaf N levels, which were analyzed at 4 and 8 weeks after planting (WAP). Simple and multiple linear regression models were developed to study this relationship, both models based on wavelength spectrum and selected wavelength to see the relationship between spectral reflectance and leaf N content. In general, the spectral response pattern of maize canopy for each treatment at 4 and 8 WAP was similar, where the reflectance of 4 WAP being lower than 8 WAP for all wavelengths. Leaf N levels could be identified at the green wavelength of 555 nm, which was indicated by the lowest reflectance at 4 WAP and high at 8 WAP for treatment of 1 standard (STD) or the highest N dose. The low reflectance of the 555 nm wavelength of this treatment indicated that the N content in the leaves was higher at 4 WAP than 8 WAP. The red, green, and red-edge wavelengths at 4 WAP and 8 WAP showed a moderate to very strong relation with leaf N content with a coefficient of determination (R2) greater than 0.40. The very strong model was shown by the multiple regression model between the combination of blue, green, red, red-edge, and near-infrared spectrum for leaf N levels for both 4 WAP and 8 WAP. The selected wavelength-based model found that the relationship was very strong shown by the wavelength of 671 nm.
PENGARUH PENAMBAHAN FILLER BLOTONG TERHADAP POTENSI CAKING PUPUK MAJEMUK GRANUL K Kasmadi; Budi Nugroho; Atang Sutandi; Syaiful Anwar
Jurnal Tanah dan Sumberdaya Lahan Vol. 7 No. 1 (2020)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (588.127 KB) | DOI: 10.21776/ub.jtsl.2020.007.1.1

Abstract

The physical quality of NPK fertilizer is very important, good physical quality, as indicated by the low potential of caking and absorption-penetration of water so that NPK fertilizer can be stored for a longer time and easier in handling. In this study, the granulation test used NPK 15-15-15 + 5S formula with the percentage filter pressmud 0%, 60%, 70%, 80%. 90% and 100% in two types of K sources: MOP (KCl) and SOP (K2SO4). Granulation was carried out using the wet granulation method using pan granulator, 2 kg batch-1 capacity, rotation speed 23 rpm and 50o pan slope. The purpose of this study was to determine the effect of filter pressmud addition on the tendency of caking NPK 15-15-15 + 5S products during storage. The results showed that the addition of pressmud filler in the production of NPK fertilizer was obtained: the addition of filter pressmud as a filler in the production of 15-15-15 + 5S NPK fertilizers can reduce the potential of caking by 1.77% -44.31% depending on the formulation of raw materials used.
Estimasi Kadar Klorofil Dan Kadar N Daun Jagung Menggunakan Chlorophyll Content Index: Estimating Chloorophyll and N Content in Corn Leaves Based on Chlorophyll Content Index Muhammad Ardiansyah; Budi Nugroho; Khalimatus Sa'diyah
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.24.2.53-61

Abstract

Kadar klorofil berkaitan dengan kondisi tanaman, sehingga dapat digunakan untuk menaksir kadar hara pada tanaman. Pengukuran kadar klorofil daun secara konvensional membutuhkan waktu dan biaya, sehingga perlu dikembangkan teknologi yang cepat dan efisien. Penelitian ini bertujuan untuk (a) menganalisa indek kadar klorofil (Chlorofil Content Index, CCI) dan kadar klorofil daun pada 10 perlakuan dosis pupuk termasuk kontrol dan beberapa fase pertumbuhan jagung, (b) menganalisa hubungan antara CCI dan kadar klorofil daun, dan (c) menganalisa hubungan CCI dan kadar N. Pada penelitian ini CCI diukur dengan klorofil meter, sedangkan kadar klorofil dan kadar N daun masing-masing diukur dengan spektrofotometer dan metode Kjeldahl. Hubungan antara CCI terhadap kadar klorofil dan kadar N dianalisis pada umur 4 dan 8 minggu setelah tanam (MST) dengan model regresi linear sederhana. Hasil penelitian menunjukan bahwa pola kurva CCI pada semua perlakuan dosis mirip yang ditunjukan oleh CCI semakin meningkat dengan bertambahnya umur tanaman dan kemudian menurun dengan menuanya tanaman. Dosis pupuk berpengaruh nyata pada CCI kecuali pada umur 2 dan 3 MST, dimana nilai tertinggi CCI temukan pada dosis pupuk dengan kecukupan hara tinggi yaitu 2 Ultra Gen (UG) + 2/3 Standar (STD) pada umur 7 MST. CCI dan kadar klorofil memiliki hubungan linear positif pada umur 4 MST dan 8 MST dengan korelasi tergolong kuat (r = 0,67) dan sangat kuat (r = 0.76). Model hubungan CCI dengan kadar N daun menunjukan korealsi positif sangat kuat pada umur 8 MST dengan persamaan N (%) = 0,019*CCI + 1,795 (r = 0,75). Hasil ini menunjukan bahwa pengukuran CCI dengan klorofil meter bisa digunakan untuk memperkirakan status hara N daun tanaman.
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
EFISIENSI PENGGUNAAN RADIASI MATAHARI DAN PARTISI BAHAN KERING BIBIT KELAPA SAWIT PADA BERBAGAI DOSIS PUPUK NITROGEN DAN FOSFOR Adinda Nurul Huda Manurung; Suwarto Suwarto; Sudirman Yahya; Budi Nugroho
Jurnal Agrotek Tropika Vol 12, No 1 (2024): JURNAL AGROTEK TROPIKA VOL 12, Februari 2024
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v12i1.7228

Abstract

Peningkatan produktivitas kelapa sawit dapat dilakukan dengan mengoptimalkan penggunaan cahaya matahari dan partisi bahan kering. Tujuan penelitian ini adalah untuk mempelajari pengaruh berbagai dosis pemupukan N dan P terhadap efisiensi penggunaan cahaya matahari dan partisi karbohidrat bibit kelapa sawit di pembibitan utama. Penelitian dilakukan di kebun percobaan leuwikopo IPB, Bogor pada bulan April 2021 sampai dengan Januari 2022. Penelitian menggunakan Rancangan Acak Kelompok non faktorial dengan lima ulangan yang terdiri atas 2 percobaan terpisah. Percobaan I terdiri atas lima taraf perlakuan pemupukan N (0%, 50%, 100%, 150%, dan 200%). Percobaan II terdiri atas lima taraf perlakuan pemupukan P (0%, 50%, 100%, 150%, dan 200%). Pemberian pupuk N dan P menyebabkan perbedaan pada nilai LUE dan partisi bibit kelapa sawit. Nilai LUE bibit kelapa sawit umur 3-6, 6-9 dan 9-12 bulan adalah 0,97 g MJ-1, 0,69 g MJ-1 dan 1,21 g MJ-1. Partisi bahan kering akar, petiole dan daun pada umur 6 bulan adalah 26%, 29%, 45%. Partisi bahan kering akar, petiole dan daun pada umur 9 bulan adalah 26%, 32%, 42%. Partisi bahan kering akar, petiole dan daun pada umur 12 bulan adalah 30%, 33%, 37%.
Co-Authors . Anandyawati Afifah Ramadhani Arival Al-Fajar Atang Sutandi Basuki Sumawinata Dedi Nursyamsi Desi Nadalia Dyah Tjahyandari Suryaningtyas Enok Sumarsih Fahmi Arief Rahman Fahrizal Hazra Hartono, Arif Heru Bagus Pulunggono Indriyati, Lilik Tri Iswandi Anas Jamili, M Joehari K Kasmadi Kasmadi Kasmadi Khalimatus Sa'diyah Laode Muhamad Asdiq Hamsin Ramadhan Manurung, Adinda Nurul Huda Mirawanty Amin Mirawanty Amin Muhammad Ardiansyah Muhammad Ardiansyah Natalia Desy Djata Ndua Priyo Cahyono RAHAYU WIDYASTUTI Rina Natalia Siti Nurzakiah Sri Djuniwati Sri Nico Djuniwati Sudirman Yahya Supiandi Sabiham Suwarno, Suwarno Suwarto Suwarto Syah Deva Ammurabi Syaiful Anwar Syaiful Anwar Untung Sudadi