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Application of Filter Cake on Growth of Upland Sugarcanes

Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 2 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Recently planting site of sugarcane was shifted from lowland to upland area. Sugar cane cultivation in upland has many constraints, especially limited water supply and low nutrition availability. The objectives of this research were to study the influence of  application of composted filter cake on growth and water use efficiency of upland sugar cane. The research was conducted in Jengkol, Kediri. Treatments consist of three factors: frequency of irrigation (once every 1 week, once every 2 weeks, and once every 3 weeks); sugarcane varieties (PS-862 and  PS-864); and  compost doses (0, 2.5, 5, and 7.5 ton ha-1). Split plot design with three replications was used in each  irrigation treatment, using composted filter cake as main plots and sugarcane varieties as sub plots. The results showed that the highest sugar content was  reached at application of 5 ton ha-1   compost  and the  greatest crystal sugar was reached at 3.09 ton ha-1 compost. Compost application at 5 ton ha-1 on each planted row can reduce  frequency of irrigation from once a week to once every 2 weeks.   Keywords: compost of filter cake, frequency of irrigation, upland sugar cane

Translation of Micromorphological Terminology Used in "Handbook for Soil Thin Section Description [Bullock et al., 1985]"

Jurnal Ilmu Tanah & Lingkungan Vol 2, No 1 (1999): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Jurnal Ilmu Tanah & Lingkungan

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Abstract

Mikromorfologi merupakan salah satu cabang ilmu dalam ilmu tanah. Dalam studi mikromorfologi, contoh tanah terlebih dahulu disiapkan sebagai suatu irisan tipis (dengan berbagai metoda), kemudian fenomena yang ada di dalamnya diperiksa menggunakan mikroskop. Dengan mengetahui susunan,bentuk, orientasi, pol a distribusi, struktur dll, fenomena yang terjadi dapat diinterpretasi, baik mengenai komposisi tanah, hubungan antar komponen maupun dinamika proses yang telah,sedang atau diperkirakan akan terjadi di dalam tanah. Dengan demikian, mikromorfologi dapat dan sangat prospektif pula untuk dikembangkan dan diterapkan bagi berbagai penggunaan diluar bidang ilmu tanah.

Mmorphological, Physical, and Chemical Characteristics of Some Volcanic Soils of MT. Galunggung

Jurnal Ilmu Tanah & Lingkungan Vol 2, No 1 (1999): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Jurnal Ilmu Tanah & Lingkungan

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Abstract

Results of study on morphological, physical, and chemical characteristics of three pedons developed on volcanic materials of Mt. Galunggung, namely BM1, BM2, and BM3, showed that these pedons had a different stage of profile development. Pedon BM1 is dassified as undeveloped, BM2 is medium developed, and BM3 is strongly developed. This is mainly caused by differences in relative age of the parent rocks, and elevation. Although classified as undeveloped, the soil represented by pedon BMI, the youngest, has immediately been used by farmers for rice cultivation because of water abundance, and h i availability of P, and basic cations derived from weathering of easily weathered amorphous materialsand minerals. According to the Soil Taxonomy system of the USDA (Soil Survey Staff, 1996), pedons BMI, BM2, and BM3 are classified as Typic Udipsamment, Tapsha Hapludandic Typic Tmpdhent, and Hwnic ~ I Yres,pecti vely. Whitst, according to FAOtUNESCO system (1988), these pedons are dassified as Ed& Regosol, Eubic Regosol and Humic Alisol, respectively.

PROSPECT OF ZEOLITE AS ABSORBENT MATERIALS FOR REMEDIATION OF ABANDONED MINE LAND

Jurnal Zeolit Indonesia Vol 5, No 2 (2006)
Publisher : Jurnal Zeolit Indonesia

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Abstract

Nowdays, mining and energy are still as important sectors for contributing state economics. However, mining activitis usually make environmental problems because most of mining use open pit mining technique that causing the change for the landscape comprising topography, cover vegetation, hydrology pattern, and distruction of soils. In the consequence, the ecosystem of mining area and its surrounding will disturb. The disturbances will more clear if the overburden containing unstable minerals in oxidize condition (such as pyrite and chalcopyrite) release acid mine drained that disturbing biota growth. Zeolite is aluminosilicate mineral group having unique structure, high cation exchange capacity, porous, and adsorp of ammonium ion and water. With those properties, zeolite can be used as (a) absorp of undesirable elements or compounds such as heavy metals, (b) carrier of nutrients such as ammonium ions, and (c) increasing buffer capasity of soils. This paper will dicuss the prospect of zeolite as material for remediation of abandoned mine land.

Sustainability Index of Rice Field for Supporting Spatial Planning (Case Study in Jember District, East Java)

Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 32 (2010): Desember 2010
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

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Abstract

Rice Field agriculture in Jember district is a main sector due to its contribution to rice production in this region. The objective of this study is to determine the rice field sustainability index based on agro-ecosystem zone and to formulate policy alternatives for supporting the spatial planning in achieving sustainable rice field agriculture. The study used the primary andsecondary data which include biophysical environment, economy, social and culture. The data analysis used GIS (Geographic Information System) modelbase, factor analysis, and AHP (Analytical Hierarchy Process). The results showed that the sustainability index of the rice field agro-ecosystem zones were different. The threats of the rice field sustainability were causedby the main indicators of the biophysical environment, economy, social, and culture such as water availability, soil nutrients of Carbon organic content, Nitrogen, and Phosphor-available, profit, fertilizer access, land conversion, land ownership and fragmentation, farmer education, and age of farmer. To overcome those threats, the policy consideration was more dominantly determined by the biophysical factor rather than that of theeconomy, social, and culture. The implementation of the policy tohandle the threats needs to be coordinated among the stakeholders, considering that the rice field resource can be categorized into a common pool resource.

ANALISIS KESENJANGAN PADA PELAYANAN PENDAFTARAN TANAH PERTAMA KALI DI KANTOR PERTANAHAN KOTA BEKASI

Jurnal Ilmu Keluarga & Konsumen Vol 8, No 2 (2015): Jurnal Ilmu Keluarga dan Konsumen
Publisher : Department of Family and Consumer Sciences

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Abstract

In order to increase service performance of government agencies, the stakeholders have to pay attention to the satisfaction of the public it serves. This study aimed to determine the level of public satisfaction and further willbe analyzed the gap between service performances of the agency and public satisfaction to the service of Land Office of Bekasi City. This research was conducted at the Land Office of Bekasi City; held from March to June 2014. The design used in this study was a cross-sectional study. The samples were chosen by convenience sampling technique. Analysis of the gap was measured by Importance Performance Analysis (IPA). The results showed that the quality of land registration services that was provided by the Land Office of Bekasi City had not meet peoples satisfaction. This was indicated by the difference between the average score of the service performance (3,22) and an the average score of the expectations (3,77). This finding showed a gap of -0,55 that means the service performance of the agency still lower that public expectation for the services. Moreover, punctuality was indicator that that had high gap score between the service performance and public satisfaction. Therefore, Land Office of Bekasi should have a policy to discipline its employees to be on time in service of land registration.

ASSESSMENT OF THE RICE FIELD SUSTAINABILITY IN JAVA ON BASIS OF REGIONAL SPATIAL USE PLANNING (RTRW)

GEOMATIKA Vol 16, No 1 (2010)
Publisher : Badan Informasi Geospasial in Partnership with MAPIN

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Abstract

The problems of the rice field sustainability in Java as the national rice producer are induced by the rice field land conversion into settlement and industrial areas due to the increase of population. The rice field conversion causes the decrease of both land quantity and quality. As mentioned in Act Number 26/2007 concerning Spatial Use management, the goal of implementing the spatial use management is to achieve the protection of spatial use function and the prevention of the negative impacts of the environment resulted from the spatial use implementation. The objective of this study is to assess the consistency of the governmental policies in implementing the Act Number 26/2007 to achieve the rice field sustainability on the basis of agro-ecological concept. By using the GIS modelbase, the rice field agro-ecological zones proposed as standard rice field areas for the benchmark of the sustainable rice field agriculture management system were synthesized from the spatial database of land system, land cover, area status, agro-climate, irrigation condition, social and culture integrated in the administration boundary layers. The results show that the governmental policies from non-agricultural sector in allocating the area status of the settlement areas as presented at the provincial regional spatial use planning map (RTRW map) have not fully consistent to the regulations as stated in Act Number 26/2007 for protecting the productive rice field function as the national rice producer. The potential loss of the rice production caused by the implementation of the rice field conversion into settlement areas allocated at the productive rice field agro-ecological zones is predicted 3.5 million tons per year.Key words: rice field agro-ecological zone, spatial use management, GIS modelbase, land conversion.ABSTRAKMasalah keberlanjutan lahan sawah di Jawa sebagai lumbung beras nasional dipicu oleh konversi lahan sawah menjadi daerah permukiman dan industri karena peningkatan jumlah penduduk. Konversi lahan sawah mengakibatkan penyusutan dan degradasi lahan sawah. Sebagaimana yang diamanatkan dalam Undang-Undang No.26/2007 tentang Penataan Ruang, tujuan penataan ruang adalah untuk melindungi fungsi penggunaan ruang dan mencegah dampak lingkungan sebagai akibat dari implementasi penggunaan ruang. Tujuan penelitian ini adalah untuk mengkaji konsistensi kebijakan pemerintah sebagai implementasi Undang-Undang No. 26/2007 dalam menjaga keberlanjutan lahan sawah berdasarkan konsep agrokologi. Dengan menggunakan basismodel SIG, zona agroekologi yang diusulkan sebagai acuan untuk penetapan luasan baku lahan sawah disintesa dari basisdata sistem lahan, penutup lahan, status kawasan, agroklimat, kondisi irigasi, dan sosial-budaya yang diintegrasikan dalam layer batas wilayah administrasi. Hasil penelitian menunjukkan bahwa kebijakan pemerintah di sektor non-pertanian dalam pengalokasian status kawasan permukiman ternyata tidak secara penuh konsisten dengan Undang-Undang No.26/2007 dalam menjaga keberlanjutan lahan sawah produkif sebagai lumbung beras nasional. Potensi kerugian proudksi beras dari akibat implementasi kebijakan tersebut diperkirakan mencapai 3,5 juta ton per tahun.Kata Kunci: zona agroekologi lahan sawah, penataan ruang, basismodel SIG, konversi lahan.

PEMODELAN PENETAPAN LAHAN SAWAH BERKELANJUTAN BERBASIS REGRESI LOGISTIK DAN EVALUASI LAHAN MULTIKRITERIA DI KABUPATEN SUKABUMI

MAJALAH ILMIAH GLOBE Vol 16, No 2 (2014)
Publisher : Badan Informasi Geospasial

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Abstract

ABSTRAKAlih fungsi sawah terus terjadi di Pulau Jawa sehingga mengancam ketahanan pangan nasional. Rencana Tata Ruang Wilayah (RTRW) dan kebijakan Lahan Pertanian Pangan Berkelanjutan (LP2B) belum mampu mengendalikan alih fungsi sawah. Penelitian ini bertujuan untuk membangun model penetapan lahan sawah berkelanjutan menggunakan metode regresi logistik dan evaluasi lahan multikriteria. Penelitian dilaksanakan di Kabupaten Sukabumi yang merupakan wilayah perbukitan di bagian selatan Pulau Jawa dengan luas lahan sawah yang cukup besar dan mendukung ketersediaan pangan nasional. Pemodelan dibangun berdasarkan karakteristik alih fungsi lokal dengan mempertimbangkan konsep pembangunan berkelanjutan. Variabel-variabel penting yang mendukung terjadinya alih fungsi sawah yang dipertimbangkan adalah jarak sawah terhadap jalan, permukiman, dan industri. Hasil regresi logistik selanjutnya menjadi masukan bobot bagi evaluasi lahan multikriteria yang dapat menghasilkan tiga skenario kebijakan perlindungan sawah, yaitu standar, protektif, dan permisif guna kepentingan pembangunan. Melalui pemodelan ini diperoleh sawah-sawah prioritas lindung yang memudahkan pengelolaannya dan sekaligus menjadi penyangga bagi sawah-sawah di belakangnya.Kata Kunci: model perlindungan lahan sawah berkelanjutan, regresi logistik, evaluasi lahan multikriteriaABSTRACTConversion of paddy fields has continuously occurred in Java Islands, thus threatens a national food security. The Regional Spatial Planning and the Policy on Sustainable Food-crop Agricultural programs seem to unable to control paddy field conversion. This research was conducted to develop a sustainable paddy field zone delineation model using logistic regression and multicriteria land evaluation. The research location is in the Sukabumi Regency which is has various morphology and large paddy fields to support national food security. The model is developed by local conversion characteristics and considering the concept of sustainable development. Important variables that contribute to paddy fields conversion are the distance to road, settlements and industrial regions. Results of logistic regression then become the input for weighted criteria to develop three policy scenarios of paddy fields protection; standard, protective, and permissive in order to support regional development. Through this model, we obtain the priority paddy fields to be protected as well as become buffer zones for the surrounding paddy fields.Keywords: paddy fields protection model, logistic regression, multicriteria land evaluation

Mmorphological, Physical, and Chemical Characteristics of Some Volcanic Soils of MT. Galunggung

Jurnal Ilmu Tanah dan Lingkungan Vol 2, No 1 (1999): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1157.349 KB)

Abstract

Results of study on morphological, physical, and chemical characteristics of three pedons developed on volcanic materials of Mt. Galunggung, namely BM1, BM2, and BM3, showed that these pedons had a different stage of profile development. Pedon BM1 is dassified as undeveloped, BM2 is medium developed, and BM3 is strongly developed. This is mainly caused by differences in relative age of the parent rocks, and elevation. Although classified as undeveloped, the soil represented by pedon BMI, the youngest, has immediately been used by farmers for rice cultivation because of water abundance, and h i availability of P, and basic cations derived from weathering of easily weathered amorphous materialsand minerals. According to the Soil Taxonomy system of the USDA (Soil Survey Staff, 1996), pedons BMI, BM2, and BM3 are classified as Typic Udipsamment, Tapsha Hapludandic Typic Tmpdhent, and Hwnic ~ I Yres,pecti vely. Whitst, according to FAOtUNESCO system (1988), these pedons are dassified as Ed& Regosol, Eubic Regosol and Humic Alisol, respectively.

Translation of Micromorphological Terminology Used in "Handbook for Soil Thin Section Description [Bullock et al., 1985]"

Jurnal Ilmu Tanah dan Lingkungan Vol 2, No 1 (1999): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (248.274 KB)

Abstract

Mikromorfologi merupakan salah satu cabang ilmu dalam ilmu tanah. Dalam studi mikromorfologi, contoh tanah terlebih dahulu disiapkan sebagai suatu irisan tipis (dengan berbagai metoda), kemudian fenomena yang ada di dalamnya diperiksa menggunakan mikroskop. Dengan mengetahui susunan,bentuk, orientasi, pol a distribusi, struktur dll, fenomena yang terjadi dapat diinterpretasi, baik mengenai komposisi tanah, hubungan antar komponen maupun dinamika proses yang telah,sedang atau diperkirakan akan terjadi di dalam tanah. Dengan demikian, mikromorfologi dapat dan sangat prospektif pula untuk dikembangkan dan diterapkan bagi berbagai penggunaan diluar bidang ilmu tanah.