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BUANA SAINS

buanasains
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Published by Universitas Tribhuwana Tunggadewi

ISSN : 14121638 EISSN : 25275720 DOI : -

Core Subject : Science, Education,

Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

BUANA SAINS p-ISSN : 1412-1638 | e-ISSN: 2527-5720 is a double-blind peer-reviewed, open-access journal, published by UNITRI PRESS. It publishes original and applied research in all areas of natural science. The Editorial goal is to provide a forum exchange and an interface between researchers and practitioners in any natural science related field.

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Articles 18 Documents

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Search results for , issue "Vol 12, No 1 (2012): Edisi Khusus" : 18 Documents clear

PENINGKATAN KUALITAS INFRASTRUKTUR JALAN PADA TANAH EKSPANSIF DENGAN PEMANFAATAN LIMBAH PERTANIAN GUNA MENDUKUNG PENGEMBANGAN WILAYAH G D. Pandulu; Suhudi Suhudi
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

Soil with high variability of shrinkage is one of contributed factor on main constraints in road contruction Probolinggo region is one of the areas has those problem of road contruction , and to overcome the problem by using soil amandement as soil stability. The aims of this study was to determine soil in Probolinggo as shrinkage soil types or not by application of ash rice husk. Result showed that by soil physical determination soil strength 2.233 g/m3, water content 50,15%, wet bulk soil 1,61 g/m3, dry bulk 1,15 kN/m3, Liqiut Limit (LL) 86,5%, Plastic limit (PL) 39,8% and Plasticity limit (PI) 47,1%. In general high plasticity value of soil will be showed highly soil shrinkage. Ash of rice husk with containt of SiO2 90% can be used as soil stability, and to reduce value of plasticity limit to 37,68% is needed about 10% ash rice husk. For main body road of 1 km is needed 669 ton of ash rice husk from burning rice husk 3.345 ton , and rice husk from about 16.725 dry rice milling

PENGGUNAAN TANAMAN Vetiveria zizanoides L. DAN BIOCHAR UNTUK REMEDIASI LAHAN PERTANIAN TERCEMAR LIMBAH TAMBANG EMAS Hamzah, A.; Kusuma, Z.; Utomo, W.H.; Guritno, B.
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

Degradation of agricultural soils is not only due to application of over dose fertilizers and pesticides, but also industrial and mining activities. In Indonesia there are 713 spots of small scale gold mining surrounding agricultural land, and the process of amalgation is potential for heavy metal pollution. The aim of this study was to evaluate the use of Vetiveria zizanoides L and biochar to remediate soils contaminated with small scale gold mine tailings containing Hg and Pb.. The results indicated that soil pH decreased from 9,1 to 6-7 due to micing FeSO4 into cow manure and biochar, and also increased soil C-organic, N, P, K and CEC. Vietiveria zizanoides grown in the tailing medida showed capability to absorb Hg and Pb from the soil and stored in the root (Hg 88,91% and Pb 51,17%), leaves (Hg 11.09% and Pb 48.83%)

PERANAN BIOCHAR SEBAGAI PEMBENAH TANAH PADA PERTANAMAN JAGUNG DI TANAH LEMPUNG BERPASIR (SANDY LOAM) SEMIARID TROPIS LOMBOK UTARA Sukartono Sukartono; W.H. Utomo
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

The aims of this study to were evaluate potential of biochar for improving several soil physical characteristics and yield of maize in a sandy loam soil of North Lombok during three cyles of sowing times (December 2010-October 2011). Five treatments, i.e. application of coconut sheld biochar (BTK), application of cow dung biochar (BKS), application of famyard manure only for one season (PKA), applications of farmyard manure each season (PKB) and control (K). Biochar application increased C-organic, and concentration of nutrient (N, P, K, Ca and Mg), absorption of N, P, K and seed yield. During three seasons, application of biochar led to higher C-organic content and more stabile compared with farmyard manure application. It indicated that biochar was potential for sequenstration of CO2, increased micro pores and soil water retention. Water holding capacity of biochar treatment was higher than PKA (application farmyard manure only for one season) and control. Maize plants showed positive response to biochar applications. Seed yield of maize for three cyles of seasons were 5,54 t/ha, 5,51 t/ha for BTK and BKS, repectively. Application of manure each season, application of farmyard manure at one season and control treatments yielded 5,62, 5,36 and 4,83 t/ha of maize seed, respectively

PEMANFAATAN KOTORAN TERNAK MENJADI SUMBER ENERGI ALTERNATIF DAN PUPUK ORGANIK R. Amaranti; M. Satori; Y.S. Rejeki
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

Enviromental problems due to activities of exploration and exploitation of natural resources for energy and utilization of energy as source of fuel become importance issue in Indonesia. Therefore an alternative for utilization of natural resources as energy is desperately needed. One of the potential resources is utilization of manure as energy alternative and fertilizer. Society of Sindangbarang village, Sub district Jalaksana of Kuningan District generally is farmer and husbandary with main activities on goat cattle. Social guidance was conducted to utilize manure as sources for energy and liquid fertilizer. The social guidance activieties were divided into three steps, i.e. identification, implementation and evaluation. Implemention was main step to install digester for processing goat manure to make biogas. The results indicated that goat manure as biogas could be made as fuel energy for cooking and organic fertilizer as alternative for agriculture activities. It is concluded that a large positive affect will be gained if all goat farmers do the same way and this avtivities is also to support government policy for alternative energy, organic agriculture and improving environmental life condition

PENGARUH RESIDU BAHAN ORGANIK PADA TANAMAN JAGUNG (Zea mays L.) SEBAGAI TANAMAN SELA PERTANAMAN UBI KAYU (Manihot esculenta L.) T. Islami
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

Maize (Zea mays L) is one of importance as intercrop with cassava (Manihot esculanta L). Field experiment was conducted on Alfisol of Agric Faculty of Brawijaya University Exp Station. The aim of this research was to evaluate the residual effect of organic matter on maize. Randomized Block design was used with seven treatment (control + application of six kinds of organic matter: (1) manure, (2) residu of manure, (3) residu of biochar manure, (4) biochar manure, (5) biochar stem of cassava and (6) residu of biochar stem cassava. Dosage of manure is 15 t/ha. Observation was made for growth and yield of maize. The result showed that there is no significant effect on growth and yield of maize, although applications of manure were higher compared with control. Biochar was potential organic matters as soil amandement

KEMANTAPAN AGREGAT SETELAH APLIKASI BIOCHAR DI TANAH LEMPUNG BERPASIR PADA PERTANAMAN JAGUNG DI LAHAN KERING KABUPATEN LOMBOK UTARA Suwardji Suwardji; W.H. Utomo; Sukartono Sukartono
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

Evaluation of changeable agregat stability was done almost one year after application of biochar during rainy season 2010/2011 of three cyles maize planting in dryland of North Lombok. Three points of undisturbed soil samples in depth 0-20 cm were collected one month after maize harvest of previously addedbiochar land. Site of soil sample was treated by application of organic matter consisting of biochar coconut hust (BTK), biochar cow manure (BKS), one season application of manure (PKA), each season aplication of manure (PkB) and control (K : without soil amandement). The results showed that after one year application of biochar increased the limited value stability of soil agregat. The value was 61,37% and 61,18% for BTK and BTS, respectivel, while for treatment of PkA, PkB dan control gave value 58,44%, 66,62% and 57,11%. Increasing stability of soil agregat after application of organic soil amandement positively correlated with i the increase of soil organic and water soil retention. Therefore, experiment suggested that modification is needed for application biochar and manure in long period of maize cropping pattern in dryland of North Lombok

ARANG HAYATI DAN TURUNANNYA SEBAGAI STIMULAN PERTUMBUHAN JABON DAN SENGON S. Komarayati; G. Pari
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

Biological biochar is potential carbon storage in the soil that can increase soil fertility. The aim of this study was to evaluate utilization of saw dust biochar, compost biochar and wood vinegar on growth of Jabon and Sengon seedlings. The result showed that addition of saw dust biochar, mix biochar, wood vinegar, and compost biochar increased height of seedlings by 5%, 5%, 2%, and 10%, respectively. For seedling stem, addition of saw dust biochar and compost biochar increased the diameter by 5% and 10%, respectively. Concentration ratio of saw biochar of 5%, mix biochar of 5%, wood vinegar of 2% and compost biochar of10% were suitable to increase growth of jabon and sengon seedlings

EFEKTIFITAS PENGELOLAAN LIMBAH CAIR PADA INDUSTRI KAYU LAPIS DI KALIMANTAN SELATAN D. Subari; Udiansyah Udiansyah; B. Yanuwiyadi; B. Setiawan
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

This paper reports the effectiveness and efficiency of wastewater treatment decreased levels of contamination in the treatment of wastewater from three plywood industries in in South Kalimantan. The results showed that the liquid waste from washing mixer glue and glue spreader quality was lower than the quality of streams Barito’s river and Martapura’s river, so if not treated will cause pollution in the river flows. Results of waste analyses at the inlet and outlet showed that the efficiency of WWTP in the plywood industry was high at 67% to 99%, with 0.007 m3/m3 water discharge of the product. Based on South Kalimantan Governor Decree No. 036 of 2008, the maximum discharge of 0.30 m3/m3 of products, so as to meet quality standards. Sludge at the WWTP can be used as a mixture of adhesive (filler)

PEMANFAATAN BIOCHAR UNTUK MENINGKATKAN PRODUKTIVITAS LAHAN KERING BERIKLIM KERING A. Dariah; N. L. Nurida
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

Water availability is main constraint to optimalization dry land condition for agriculture development. Therefore innovation technology for water utilization is need. The aims of this study is to determine function of mulch and soil ameandment base of bio-char for improving soil physics, especially for water holding capacity, and to increased productivity and fertilizer efficiency. Filed experiment was conducted in dry land Exp. Station Naibonat, Kupang, during 2010 and 2011. Randomized Block Design was used with three replications. There five treatment was applied such as: control, mulch surface, mulch + soil amandment, vertical mulch, vertical mulch + soil amandment. The result showed that mulch and soil amandment gave significantly effect on growth and yield of Maize. It is also indicated that application of vertical mulch + soil amandment gave a good growth and yield. At extreme condition application mulch and soil amandment did not improve growth and yield of Maize. Application of bio-char as soil amandment in the long-run will improve utilization of organic fertilizer and to support carbon conservation in the soil

POTENSI PEMBENAH TANAH BIOCHAR DALAM PEMULIHAN SIFAT TANAH TERDEGRADASI DAN PENINGKATAN HASIL JAGUNG PADA TYPIC KANHAPLUDULTS LAMPUNG N. L. Nurida; A. Rachman; Sutono Sutono
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

At present food crop agriculture in the dry land faces to management problem that does not meet with potential and adaptability. Beside problems on how to reduce soil chemical degradation, the rehabilitation activity to recovery soil characteristics is also a problem Agriculture waste product which difficult to decompose such as coconut husk, rice hull, and stem wood is potential to be used as soil amendment through bio-char by incomplete burning. The aim of this study was to test the effects different agricultural waste products in improving soil physical and chemical quality and production of maize. A field experiment was conducted at Taman Bogo Exp Station, Lampung. A split plot design with three replicatees was employed. Main plot was three soil amendment biochars ( SP50, SP75 and KS50), and as sub plot was: control, and three levels of soil amendment application (2,5; 5,0 and 7,5 t/ha). The results showed that three formulas of soil amendments improved f soil physic and chemical charactristics, while different level of soil amendment only significantly affected porosity of soil water available (PAT). Three formulas of soil amendment also increased yield of maize. The proper dose of soil amendment for three formulas ranged from 5,0 to 7,5 t/ha

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