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  • perencanaan usaha tani lahan kering berkelanjutan berbasis tembakaudi sub das progo Hulu kabupaten temanggung provinsi jawa tengah
    Buletin Tanaman Tembakau Serat & Minyak Industri, 2016
    Co-Authors: Jaka Suyana
    Abstract:

    Akibat dari teknik budi daya yang kurang mengindahkan kaidah konservasi tanah dan air, pada kemiringan berbukit dan curam, serta curah hujan yang tinggi pada usaha tani lahan kering berbasis tembakau di Sub-DAS Progo Hulu telah menyebabkan terjadinya erosi yang parah dan degradasi lahan. Penelitian ini bertuju-an: (1) mengkaji kondisi biofisik lahan dan karakteristik usaha tani lahan kering berbasis tembakau di Sub-DAS Progo Hulu; (2) mengkaji pengaruh teknologi konservasi tanah dan air (KTA) spesifik lokasi terhadap limpasan permukaan dan erosi; dan (3) merumuskan perencanaan sistem pertanian konservasi untuk mewu-judkan sistem usaha tani lahan kering berkelanjutan berbasis tembakau di Sub-DAS Progo Hulu. Penelitian dilakukan menggunakan metode survei, percobaan lapangan, dan analisis di laboratorium. Data karakteristik lahan, karakteristik usaha tani, serta data limpasan permukaan dan erosi dianalisis secara deskriptif dan dilan-jutkan dengan analisis ragam (uji F) dan uji HSD 5%. Selanjutnya pengembangan rekomendasi agroteknolo-gi diformulasikan melalui teknik simulasi dengan program Powersim Versi 2.5d. Hasil penelitian menunjukan bahwa penggunaan lahan pada usaha tani lahan kering berbasis tembakau di Sub-DAS Progo Hulu pada umumnya (58,4%) sesuai dengan kelas kemampuan lahan dan sisanya 41,6% tidak sesuai dengan kelas ke-mampuan lahan. Terdapat 77,2% lahan memiliki nilai prediksi erosi lebih besar dari nilai erosi yang dapat di-toleransikan (ETol) dan perlu penyempurnaan dalam teknologi KTA. Usaha tani lahan kering berbasis usaha tani tembakau di Sub-DAS Progo Hulu didominasi pola tanam jagung-tembakau (51,0%) dan cabai-temba-au (29,2%), dengan pendapatan usaha tani masih di atas nilai kebutuhan hidup layak (KHL). Perlakuan pem-berian mulsa batang tembakau dikombinasikan rumput penguat teras ( Setaria spacelata ) dapat menekan erosi 15–19% pada dosis 7 ton/ha dan 31–43% pada dosis 14 ton/ha batang tembakau, sedangkan tumpang sari koro merah dengan tembakau dikombinasikan penggunaan mulsa batang tembakau 7 ton/ha dapat menekan erosi 13–20%. Pengembangan usaha tani lahan kering berkelanjutan berbasis tembakau di Sub-DAS Progo Hulu dapat diwujudkan dengan penyempurnaan teknologi KTA yang meliputi: (a) perlakuan rumput setaria sebagai penguat teras + mulsa batang tembakau 7 ton/ha atau perlakuan tumpang sari koro merah dengan tembakau + mulsa batang tembakau 7 ton/ha pada kemiringan lereng 8–15%; (b) teras miring + perlakuan rorak pada kemiringan lereng 15–30%; dan (c) perlakuan rumput setaria sebagai penguat teras miring + mulsa batang tembakau 14 ton/ha + rorak pada kemiringan lereng >30%. Due to inadequate soil and water conservation practices in farming activity at tobacco based farming sys-tems, severe erosion and land degradation had been occuring in almost all upland agriculture in Progo Hulu Sub-watershed. This research was conducted: (1) to study land’s biophysic conditions and the characteris-tics of tobacco based farming systems, (2) to study and analyze the impact of various soil and water conser-vation practices on erosion, (3) to study and design sustainable conservation farming systems in tobacco based farming systems. This research by using a survey method, field experiments, and laboratory analysis. Data characteristics of land, farm characteristics, surface run off and erosion by using descriptive analyzed and followed by analysis of variance (F test) and 5% HSD test. The development of agrotechnology recom-mendations formulated by simulation techniques using program Powersim Version 2.5 d. The results showed that land use in tobacco-based farming systems at Progo-Hulu sub-watershed was generally (58.4%) suitable to its land capability and 41.6% were not suitable. The predicted erosion on approximately 77.2% of lands were higher than local tollerable soil loss which need improvement of soil and water conservation techniques. Tobacco based farming systems was dominated by maize-tobacco (51.0%) and chili-tobacco (29.2%) cropping patterns; farmers income on this farming systems were higher than the income that can support worthed life living standard. The application of crop residue (tobacco stems) as mulch with rate of 7 tones/ha and 14 tones/ha combined with grassed bench terraces (( Setaria spacelata ) reduced erosion as much as 15–19% and 31–43%, respectively. Meanwhile, red bean-tobacco intercropping combined with crop residue mulch of 7 tones/ ha had suppressed erosion 13–20%. Sustainable tobacco-based farming systems could be developed in this area by practicing improved soil and water conservation technologies with: (a) setaria grass to strengthen terraces + 7 tones/ha of crop residue mulch or red bean and tobacco intercropping + 7 tones/ha of crop residue mulch on 8–15% slope; (b) broad base terraces + adequate slit pit on 15–30% slope; and (c) setaria grass to strengthen broadbase terraces + 14 ton/ha of crop residue mulch + adequate slit pit on >30% slope.

  • KAJIAN KEMAMPUAN LAHAN PADA USAHA TANI LAHAN KERING BERBASIS TEMBAKAU DI SUB-DAS PROGO Hulu(The study of land capability on tobacco - based upland farming at progo Hulu sub-waterhed)
    2014
    Co-Authors: Jaka Suyana, Naik Sinukaban, Bunasor Sanim, M. Yanuar J. Purwanto
    Abstract:

    the recent and also the future problems for indonesian conterning with agricultural environtment resources are land degradation and water restrictiviness. ariculturaL TECHNIQUE WITHOUT AWARNESS TO CONCERNING TO SOIL and water conservation principle on step and high rainfall area had caused severe erotion and land degradation at upland area of progo Hulu sub-watershed land degradation that promoted by erotion at progi Hulu sub-washed contribute negative effect at on-site and out-site area the land cpability analysis shows taht tobacco based farming system at progo Hulu dominated by calss IV (3,624.93 ha; 49,00%), followed with class VI (2,488.82 ha; 33,64%), class III (697,99 ha; 9,43%) and class VII (136,06 ha; 1,84%). the main resistance factor are slope and erotion for class III, erotion , slope and surface rocks for class VI, and slope for class VII

  • Kajian Kemampuan Lahan pada Usahatani Lahan Kering Berbasis Tembakau di Sub-DAS Progo Hulu
    Sains Tanah: Journal of Soil Science and Agroclimatology, 2013
    Co-Authors: Jaka Suyana, Naik Sinukaban, Bunasor Sanim, M. Yanuar J. Purwanto
    Abstract:

    Title : Th e Study of Land Capability on Tobacco-Based Upland Farming at Progo Hulu Sub-Watershed. The recent and also the future problems for Indonesian concerning with agricultural environment resources are land degradation and water resources restrictiveness. Agricultural technique without awareness to concerning to soil and water conservation principles on steep and high rainfall area had caused severe erosion and land degradation at upland area of Progo Hulu sub-watershed. Land Degradation that promoted by erosion at Progo Hulu sub-watershed contributed negative effects at on-site and out-site area. The land capability analysis shows that tobacco-based farming system at Progo Hulu sub watershed dominated by class IV (3,624.93 ha; 49.00%), followed with class VI (2,488.82 ha; 33.64%), class III (697.99 ha; 9.43%), class V (450.73 ha; 6.09%), and class VII (136.06 ha; 1.84%). The main resistance factors are slope and erosion for class III; erosion, slope and surface rocks for class VI; and slope for class VII. Keywords: land capability, Progo Hulu Sub-watershed

Ismarulyusda Ishak - One of the best experts on this subject based on the ideXlab platform.

  • Serum selenium status among populations in Hulu Langat District, Selangor, Malaysia [Status selenium serum populasi di daerah Hulu Langat, Selangor, Malaysia]
    2009
    Co-Authors: Ismarulyusda Ishak, Jamaludin Mohamaed, Khairul Osman, Zakiah Ismail, Mohd Fairulnizal Mohdnoor
    Abstract:

    Selenium plays an important role in maintaining human health status. Insufficient intake of selenium could lead to disease development. One cross-sectional study was conducted to assess serum selenium levels among populations of Hulu Langat District. Selangor. Malaysia. Furthermore, its pattern according to the socio demographic factors of the subjects was identified. The populations of Hulu Langat District involving six sub-districts namely Ulu Langat, Ampang, Kajang, Cheras, Beranang and Semenyih were randomly selected. A total of 415 subjects aged between 5-64 years old were involved in the study. Blood sample was taken to assess serum selenium levels. Results showed that overall selenium levels were 1.67 ± 0.44 I¼mol/l. The result of Two Way ANOVA showed no significant difference of selenium levels according to gender with the value p=0.981 (p>0.05). Whilst there was significant difference of selenium levels according to age groups with the value p 0.05). Selenium levels are significantly different according to location (p

  • Status selenium serum populasi di daerah Hulu Langat, Selangor, Malaysia
    Sains Malaysiana, 2009
    Co-Authors: Ismarulyusda Ishak, Khairul Osman, Zakiah Ismail, Jamaludin Mohamed, M N Mohd Fairulnizal
    Abstract:

    Selenium plays an important role in maintaining human health status. Insufficient intake of selenium could lead to disease development. One cross-sectional study was conducted to assess serum selenium levels among populations of Hulu Langat District, Selangor, Malaysia. Furthermore, its pattern according to the socio demographic factors of the subjects was identified. The populations of Hulu Langat District involving six sub-districts namely Ulu Langat, Ampang, Kajang, Cheras, Beranang and Semenyih were randomly selected. A total of 415 subjects aged between 5-64 years old were involved in the study. Blood sample was taken to assess serum selenium levels. Results showed that overall selenium levels were 1.67 + 0.44 μmol/l. The result of Two Way ANOVA showed no significant difference of selenium levels according to gender with the value p=0.981 (p>0.05). Whilst there was significant difference of selenium levels according to age groups with the value p 0.05). Selenium levels are significantly different according to location (p