Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal Journal of Tropical Soils Jurnal Sumberdaya Lahan Buletin Penelitian Tanaman Rempah dan Obat WACANA Buletin Penelitian Tanaman Rempah dan Obat Jurnal Sumberdaya Lahan Jurnal Tanah dan Iklim
. SUKARMAN
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science Languange, Linguistic, Communication & Media Social Sciences

Published : 9 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 9 Documents
Search

 1 
Prospect of Soybean Extensification in Indonesia MULYANY, ANNY; SUKARMAN, .; HIDAYAT, ACHMAD
Jurnal Sumberdaya Lahan Vol 3, No 01 (2009): Juli 2009
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Indonesia which covers 188.2 million ha of land area has great opportunities for soybean expansion. Until now, domestic need for soybean is still complied from import. Soybean is one of the strategic commodities for food and industrial needs, which in 2008 became a national issue because of the scarcity in the market. Therefore, the Department of Agriculture launched a selfsufficiency policy on soybeans targetted in the year 2014 through breakthrough efforts. To support the target, suitable land for soybean has been identified in 17 provinces. The results showed that land suitable for soybeans is around 16.7 million ha, scatteredin various location, namely 4.9 million ha in wetland area, 1.7 million ha in dry land area, 1.7 million ha in plantation area, 2.9 million ha in mix garden area, and 5.5 million ha in grass land area. If 30% of the assumed land suitable for soybeans in ricefield and upland can be utilized, these can produce 2.4 million tons of soybeans with the assumption that the average productivity levels is 1.2 tonnes/ha and once a year planting to maintain the balance of others commodity production. By utilizing 2 million ha of ricefield and upland, soybean self-sufficiency can be achieved in 2015. The development and extensification of soybean planting area should consider land suitability level. Area selection which historically has became soybean production center in 1990 is also has to take into account as well as farmer’s habit in soybean farming system. To accelerate the soybean self sufficiency, the improvement of human resources must be supported in form of assisting, motivation, extention, training, and plot dmeonstration, in order to gain optimal land productivity and technological application. In addition, the government supports are needed for the provision ofproduction facilities, capital, building the marketing chain, as well as conditions to create reasonable prices so that there isincentive for communities to develop soybeans.
PENGARUH LOKASI PENYIMPANAN DAN PELAPISAN (COATING) BENIH DENGAN PESTISIDA NABATI TERHADAP MUTU BENIH RIMPANG JAHE Sukarman, .; Seswita, Deliah
Buletin Penelitian Tanaman Rempah dan Obat Vol 23, No 1 (2012): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v23n1.2012.%p

Abstract

Salah satu permasalahan dalam penyediaan benih jahe adalah terjadinya kerusakan benih seperti penyusutan bobot rimpang, keriput dan bertunas selama penyimpanan. Kendala tersebut dapat dipecahkan melalui penyimpanan di lokasi yang beriklim sejuk dan pelapisan benih pestisida nabati. Informasi lokasi penyimpanan dan pelapisan benih untuk mempertahankan mutu benih jahe masih terbatas. Percobaan ini dilakukan dengan tujuan untuk mempelajari mutu fisik, fisiologis benih pada lokasi dan cara pelapisan yang berbeda. Percobaan dilakukan di Cimanggu, Bogor dan KP. Gunung Putri, Balittro sejak Agustus 2009 sampai Januari 2010. Percobaan faktorial, dengan dua faktor, tiga ulangan dan 20 sampel untuk setiap perlakuan disusun dalam rancangan acak kelompok (RAK). Faktor pertama adalah dua tinggi tempat penyimpanan yaitu : 1) KP. Cimanggu (250 m dpl) dan 2) KP. Gunung Putri (1.400 m dpl). Faktor kedua adalah tujuh perlakuan coating yaitu : 1) Kontrol, 2) (Cekam EC), 3). Cees EC, 4) (Mitol 2 ml/l), 5) Ditama SP, 6) Minyak jarak 10 ml/l dan 7) Rehidrasi. Pengamatan dilakukan setiap bulan, parameter yang diamati meliputi mutu fisik (penyusutan bobot rimpang dan kadar air) serta kualitas mutu fisiologis (daya tumbuh, jumlah rimpang bertunas, jumlah tunas per impang dan panjang tunas). Hasil penelitian menunjukkan bahwa mutu fisik dan fisiologis benih - rimpang jahe, dipengaruhi oleh lokasi penyimpanan, tetapi tidak dipengaruhi oleh pelapisan dan interaksinya. KP. Gunung Putri dengan rata rata suhu harian 19,20C dan kelembaban 90,1% layak digunakan sebagai lokasi penyimpanan benih jahe, sampai 5 bulan, kualitas benih tidak berbeda dengan kondisi sebelum penyimpanan tanpa memerlukan perlakuan benih khusus. Oleh karena itu untuk menjaga kualitas, benih jahe harus disimpan di dataran tinggi.
Physical and Chemical Properties of Cultivated Peat Soils in Four Trial Sites of ICCTF in Kalimantan and Sumatra, Indonesia Hikmatullah, .; Sukarman, .
JOURNAL OF TROPICAL SOILS Vol 19, No 3: September 2014
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2014.v19i3.131-141

Abstract

The large distribution of peat soils in Indonesia have important role in carbon stock and greenhouse gas emission which contribute to global warming issue. The objective of this study was to characterize physical and chemical properties of cultivated peat soils in four trial sites of Indonesia Climate Change Trust Fund (ICCTF) in Central Kalimantan, South Kalimantan, Riau and Jambi Provinces to provide a baseline data by a greenhouse gas emission study. Detailed soil observations were conducted using grid system with spacing of 25 × 50 m. A total of 16 representative peat soil profiles consisting of 74 soil samples of horizons were selected for laboratory analyses. The results showed that peat maturity varied from hemic to sapric in the surface layers and hemic in the subsurface layers, except in Site-2 that was fibric. The peat thickness ranged respectively from 5.4 to 7.0 m in Site-1 and Site-3, and from 0.5 to 2.5 m in site-2 and site-4, and all overlying fine-textured mineral soil (substratum). Depth of water table varied from 10 to 30 cm in Site-2 and Site-4, and from 30 to 70 cm in Site-1 and Site-3. Fiber content ranged from 13 to 57% and increased with depth indicating the peat was less decomposed. The bulk density was very low (0.07-0.24 g cm-3) and negatively correlated to fiber content (r = 0.74 for Kalimantan and r = 0.66 for Sumatra). The ash content was low (0.1-8.5%) and negatively correlated to organic carbon content (r = 0.89 for Kalimantan and r = 0.65 for Sumatra). Soil CEC was high and positively correlated to organic carbon content (r = 0.86 for Kalimantan and r = 0.93 for Sumatra). These soils showed very acid reaction (pH 3.3-4.7), low content of exchangeable bases and total P2O5 and K2O (HCl 25%). Based on these properties, the peat soils were grouped as oligotrophic ombrogenous peat. The estimated carbon stock for all the trial sites with total extent of 22.58 ha was 57,282 Mg C. The variation of thickness, maturity, and water table depth will imply to the magnitude of carbon reserves and greenhouse gas emissions. [How to Cite: Hikmatullah and Sukarman. 2014. Physical and Chemical Properties of Cultivated Peat Soils in Four Trial Sites of ICCTF in Kalimantan and Sumatra, Indonesia. J Trop Soils 19: 131-141. Doi: 10.5400/jts.2014.19.3.131]
Prospect of Soybean Extensification in Indonesia ANNY MULYANY; . SUKARMAN; ACHMAD HIDAYAT
Jurnal Sumberdaya Lahan Vol 3, No 1 (2009)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v3n1.2009.%p

Abstract

Indonesia which covers 188.2 million ha of land area has great opportunities for soybean expansion. Until now, domestic need for soybean is still complied from import. Soybean is one of the strategic commodities for food and industrial needs, which in 2008 became a national issue because of the scarcity in the market. Therefore, the Department of Agriculture launched a selfsufficiency policy on soybeans targetted in the year 2014 through breakthrough efforts. To support the target, suitable land for soybean has been identified in 17 provinces. The results showed that land suitable for soybeans is around 16.7 million ha, scatteredin various location, namely 4.9 million ha in wetland area, 1.7 million ha in dry land area, 1.7 million ha in plantation area, 2.9 million ha in mix garden area, and 5.5 million ha in grass land area. If 30% of the assumed land suitable for soybeans in ricefield and upland can be utilized, these can produce 2.4 million tons of soybeans with the assumption that the average productivity levels is 1.2 tonnes/ha and once a year planting to maintain the balance of others commodity production. By utilizing 2 million ha of ricefield and upland, soybean self-sufficiency can be achieved in 2015. The development and extensification of soybean planting area should consider land suitability level. Area selection which historically has became soybean production center in 1990 is also has to take into account as well as farmer’s habit in soybean farming system. To accelerate the soybean self sufficiency, the improvement of human resources must be supported in form of assisting, motivation, extention, training, and plot dmeonstration, in order to gain optimal land productivity and technological application. In addition, the government supports are needed for the provision ofproduction facilities, capital, building the marketing chain, as well as conditions to create reasonable prices so that there isincentive for communities to develop soybeans.
PENGARUH LOKASI PENYIMPANAN DAN PELAPISAN (COATING) BENIH DENGAN PESTISIDA NABATI TERHADAP MUTU BENIH RIMPANG JAHE . Sukarman; Deliah Seswita
Buletin Penelitian Tanaman Rempah dan Obat Vol 23, No 1 (2012): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v23n1.2012.%p

Abstract

Salah satu permasalahan dalam penyediaan benih jahe adalah terjadinya kerusakan benih seperti penyusutan bobot rimpang, keriput dan bertunas selama penyimpanan. Kendala tersebut dapat dipecahkan melalui penyimpanan di lokasi yang beriklim sejuk dan pelapisan benih pestisida nabati. Informasi lokasi penyimpanan dan pelapisan benih untuk mempertahankan mutu benih jahe masih terbatas. Percobaan ini dilakukan dengan tujuan untuk mempelajari mutu fisik, fisiologis benih pada lokasi dan cara pelapisan yang berbeda. Percobaan dilakukan di Cimanggu, Bogor dan KP. Gunung Putri, Balittro sejak Agustus 2009 sampai Januari 2010. Percobaan faktorial, dengan dua faktor, tiga ulangan dan 20 sampel untuk setiap perlakuan disusun dalam rancangan acak kelompok (RAK). Faktor pertama adalah dua tinggi tempat penyimpanan yaitu : 1) KP. Cimanggu (250 m dpl) dan 2) KP. Gunung Putri (1.400 m dpl). Faktor kedua adalah tujuh perlakuan coating yaitu : 1) Kontrol, 2) (Cekam EC), 3). Cees EC, 4) (Mitol 2 ml/l), 5) Ditama SP, 6) Minyak jarak 10 ml/l dan 7) Rehidrasi. Pengamatan dilakukan setiap bulan, parameter yang diamati meliputi mutu fisik (penyusutan bobot rimpang dan kadar air) serta kualitas mutu fisiologis (daya tumbuh, jumlah rimpang bertunas, jumlah tunas per impang dan panjang tunas). Hasil penelitian menunjukkan bahwa mutu fisik dan fisiologis benih - rimpang jahe, dipengaruhi oleh lokasi penyimpanan, tetapi tidak dipengaruhi oleh pelapisan dan interaksinya. KP. Gunung Putri dengan rata rata suhu harian 19,20C dan kelembaban 90,1% layak digunakan sebagai lokasi penyimpanan benih jahe, sampai 5 bulan, kualitas benih tidak berbeda dengan kondisi sebelum penyimpanan tanpa memerlukan perlakuan benih khusus. Oleh karena itu untuk menjaga kualitas, benih jahe harus disimpan di dataran tinggi.
Kausalitas Anak dan Orang Tua : Relevansi antara Teori Konvergensi dalam Psikologi Pendidikan Barat dengan Teori Fitrah dalam Perspektif Islam . Sukarman
Wacana Vol 12, No 1 (2020)
Publisher : UNS Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/wacana.v12i1.165

Abstract

Abstrak: Artikel ini merupakan kajian penelitian konseptual yang akan memaparkan pola hubungan kausalitas anak dan orang tua menurut teori konvergensi dalam psikologi pendidikan barat dan pandangan teori fitrah dalam perspektif pendidikan Islam. Jika kedua teori ini disandingkan maka akan ditemukan relevansi satu sama lain. Hal yang menarik dalam kajian ini adalah kedua teori ini menempatkan seorang anak sebagai pihak penerima pengaruh (pendidikan) sedangkan orang tua diposisikan sebagai pihak pemberi pengaruh (pendidikan) dalam kehidupan anak. Dalam pandangan Islam ketika orang tua telah tiada maka hasil pemberian pengaruh (pendidikan) terhadap anak akan berpengaruh pada kehidupan orang tuanya kelak. Sehingga dalam hal ini akan terdapat hubungan kausalitas antara keduanya. Kajian ini dilatarbelakangi adanya persoalan ketidaksepemahaman tentang tanggung jawab pendidikan antara guru dan orang tua. Metode penelitian menggunakan literature review dalam kajian deskriptif kualitatif. Penelitian ini mencoba membandingkan antara dua teori pendidikan barat dan teori pendidikan Islam. Simpulan dari kajian tentang teori konvergensi dan teori fitrah adalah adanya satu titik temu antara keduanya meskipun kedua teori tersebut bersumber dari sumber yang berbeda yakni literatur barat dan literatur Islam.Kata kunci: kausalitas, konvergensi, Islam.
Prospect of Soybean Extensification in Indonesia ANNY MULYANY; . SUKARMAN; ACHMAD HIDAYAT
Jurnal Sumberdaya Lahan Vol 3, No 1 (2009)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (137.526 KB) | DOI: 10.21082/jsdl.v3n1.2009.%p

Abstract

Indonesia which covers 188.2 million ha of land area has great opportunities for soybean expansion. Until now, domestic need for soybean is still complied from import. Soybean is one of the strategic commodities for food and industrial needs, which in 2008 became a national issue because of the scarcity in the market. Therefore, the Department of Agriculture launched a selfsufficiency policy on soybeans targetted in the year 2014 through breakthrough efforts. To support the target, suitable land for soybean has been identified in 17 provinces. The results showed that land suitable for soybeans is around 16.7 million ha, scatteredin various location, namely 4.9 million ha in wetland area, 1.7 million ha in dry land area, 1.7 million ha in plantation area, 2.9 million ha in mix garden area, and 5.5 million ha in grass land area. If 30% of the assumed land suitable for soybeans in ricefield and upland can be utilized, these can produce 2.4 million tons of soybeans with the assumption that the average productivity levels is 1.2 tonnes/ha and once a year planting to maintain the balance of others commodity production. By utilizing 2 million ha of ricefield and upland, soybean self-sufficiency can be achieved in 2015. The development and extensification of soybean planting area should consider land suitability level. Area selection which historically has became soybean production center in 1990 is also has to take into account as well as farmer’s habit in soybean farming system. To accelerate the soybean self sufficiency, the improvement of human resources must be supported in form of assisting, motivation, extention, training, and plot dmeonstration, in order to gain optimal land productivity and technological application. In addition, the government supports are needed for the provision ofproduction facilities, capital, building the marketing chain, as well as conditions to create reasonable prices so that there isincentive for communities to develop soybeans.
Evaluation of Soil Properties of the Alluvial Landform in Three Locations of Donggala Regency, Central Sulawesi . HIKMATULLAH; . SUKARMAN
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 25 (2007): Juli 2007
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n25.2007.%p

Abstract

Alluvial landforms in Donggala Regency, Central Sulawesi, are main agricultural land, but information of soil properties has not been yet studied and published. The objectives of the study were to evaluate soil physical, chemical and mineralogical properties of alluvial landform and potential fertility for agriculture. Five pedons from Palu valley, five pedons from northcoast and three pedons from west coast of Donggala regency were selected for laboratory analyses. The pedons represent dominant soil groups, consisting of Ustifluvents, Haplustepts, Eutrudepts, and Endaoquepts. To evaluate soil property differences among the locations, a paired test comparison was applied. To compare clay or organic carbon contents with CEC soils, a multiple linier regression was applied. The results indicatethat the soils of the areas have loamy sand to sandy clay loam textures, slightly acid to slightly alkaline, low to very low organic carbon contents, high P2O5 and K2O (extracted by HCl 25%) contents, medium to high available P2O5 (extracted by Olsen), low soil CEC, high clay CEC and base saturation. The soil properties showed wide variation with coefficient variation (CV) ranging from 23 to 98%, except for pH and base saturation (CV<20%). The results of pair test comparison indicated that sand content, total K2O, and available P2O5 were differ very significantly for all pairs, whereas clay, silt, and organic carbon contents, CEC soil and CEC clay were differ very significantly only for two pairs of the locations that was between Palu vallley and north coast and west coast. The results of multiple linierregression analyses show that clay content has closer relationship to CEC soil rather than organic carbon content. Composition of sand mineral fraction was dominated by quartz and rock fragments, but it shows relatively high weatherable minerals (12-46%), while clay mineral was a mixture of smectite and illite. The potential fertility of the soils was relatively good,with main contraints of low organic matters and low soil CEC. Incorporation of organic matters, such as green manure and crop residues, is suggested to improve and increase CEC soils and nutrient availability.
Physical and Chemical Properties of Cultivated Peat Soils in Four Trial Sites of ICCTF in Kalimantan and Sumatra, Indonesia Hikmatullah, .; Sukarman, .
JOURNAL OF TROPICAL SOILS Vol. 19 No. 3: September 2014
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2014.v19i3.131-141

Abstract

The large distribution of peat soils in Indonesia have important role in carbon stock and greenhouse gas emission which contribute to global warming issue. The objective of this study was to characterize physical and chemical properties of cultivated peat soils in four trial sites of Indonesia Climate Change Trust Fund (ICCTF) in Central Kalimantan, South Kalimantan, Riau and Jambi Provinces to provide a baseline data by a greenhouse gas emission study. Detailed soil observations were conducted using grid system with spacing of 25 × 50 m. A total of 16 representative peat soil profiles consisting of 74 soil samples of horizons were selected for laboratory analyses. The results showed that peat maturity varied from hemic to sapric in the surface layers and hemic in the subsurface layers, except in Site-2 that was fibric. The peat thickness ranged respectively from 5.4 to 7.0 m in Site-1 and Site-3, and from 0.5 to 2.5 m in site-2 and site-4, and all overlying fine-textured mineral soil (substratum). Depth of water table varied from 10 to 30 cm in Site-2 and Site-4, and from 30 to 70 cm in Site-1 and Site-3. Fiber content ranged from 13 to 57% and increased with depth indicating the peat was less decomposed. The bulk density was very low (0.07-0.24 g cm-3) and negatively correlated to fiber content (r = 0.74 for Kalimantan and r = 0.66 for Sumatra). The ash content was low (0.1-8.5%) and negatively correlated to organic carbon content (r = 0.89 for Kalimantan and r = 0.65 for Sumatra). Soil CEC was high and positively correlated to organic carbon content (r = 0.86 for Kalimantan and r = 0.93 for Sumatra). These soils showed very acid reaction (pH 3.3-4.7), low content of exchangeable bases and total P2O5 and K2O (HCl 25%). Based on these properties, the peat soils were grouped as oligotrophic ombrogenous peat. The estimated carbon stock for all the trial sites with total extent of 22.58 ha was 57,282 Mg C. The variation of thickness, maturity, and water table depth will imply to the magnitude of carbon reserves and greenhouse gas emissions. [How to Cite: Hikmatullah and Sukarman. 2014. Physical and Chemical Properties of Cultivated Peat Soils in Four Trial Sites of ICCTF in Kalimantan and Sumatra, Indonesia. J Trop Soils 19: 131-141. Doi: 10.5400/jts.2014.19.3.131]
Co-Authors . HIKMATULLAH Achmad Hidayat Achmad Hidayat ANNY MULYANY Deliah Seswita Deliah Seswita