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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 32 Documents

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Search results for , issue "Vol 12, No 1 (2012)" : 32 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

PERBEDAAN KUALITAS TANAMAN JAGUNG BERCIRI BROWN MIDRIB RESISTANCE DARI DATARAN RENDAH DAN TINGGI DI WILAYAH YOGYAKARTA B. Suwignyo; B. Suhartanto; Dj. Soetrisno
BUANA SAINS Vol 12, No 1 (2012)
Publisher : Universitas Tribhuwana Tunggadewi

This study aimed to determine the difference quality of corn plants with brown midrib resistance characterized on low and high land of Yogyakarta Province. Development of farm world will always be followed by efforts to satisfy meet quality and sustainable food supply. Problems of tropical forage feed provision are not only the quantity but also quality and continuity. Lignifications is one of the limitation factor for forage that will affect to low digestibility level. Indonesia as a country that is located in the tropics actually have the potential of corn forage. There is a type of corn with brown color on the underside of leaves around the middle of the bone known as the brown midrib resistance (BMR) is the hallmark of corn plants that have low lignin content. BMR corn with these characteristics is genetic heredity. Nutritional quality analysis for corn plant have done at the Laboratory of Food Forage and Pastures Livestock Husbandry Faculty of the University of Gadjah Mada. Corn plant derived from the lowlands have the potential dry matter better in addition to trend lower lignin than corn from the highlands

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

HERETABILITAS DAN NILAI PEMULIAAN DOMBA EKOR GEMUK DI KABUPATEN SITUBONDO H. Darmawan; N. Supartini
BUANA SAINS Vol 12, No 1 (2012)
Publisher : Universitas Tribhuwana Tunggadewi

Situbondo district is one of the development zone of fat tail sheep. However, there are still have problems in base information of fat tail sheep genetic potential. Aim of this research are to identify genetic potential of fat tail sheep and determine factors of fat tail sheep genetic potential development at Situbondo district. This research used simple random sampling method. Materials research were 99 of third to fourth months old of fat tail sheep which have weaned based on respondents report and assumed from their experiences. Data analized using unpair t-test and estimation of heritability, breeding value and correlation coefficient. The result showed that genetic potential of fat tail sheep known from breeding value estimation with the value of weaning weight heritability as genetically parameter. The heritability of weaning weight corrected on 100 days of age is 0,1462, and the highest breeding value was sire number 19, which is 15,98 kg and it mean that this value is higher 0,64 kg than the population rate. So, we need completely and continously recorded datas of base information of fat tail sheep ganetic potential in order to evaluate the next development prgramme of fat tail sheep

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

PERFORMANSI NILAI TAMBAH KEDELAI MENJADI TAHU DI KABUPATEN SAMBAS Muhsina Muhsina; S. Masduki; A A. Sa’diyah
BUANA SAINS Vol 12, No 1 (2012)
Publisher : Universitas Tribhuwana Tunggadewi

The added value of soybean in agribusiness system either in the form of small industries and medium sized businesses by using as a main raw material, of as tofu industry in District Tangaran Sambas of Weast Kalimantan. This study aim to determine profit and feasibility of soybeans into tofu. The research method was the study conducted a census in distric Tangaran remember only has 3 Small Family Tofu process. Data analysis included analysis of cost, revenues, profits and efficiency such as R/C or BEP. The result showed: 1) The cost of procecing 616 kg soybeans is Rp. 4.541.307,- ; 2) Tofu (the BEP production) price is Rp. 177,21 per piece volume reaching 14.885 pieces with a size 4,5 cm x 4,5 cm per piece; 3) 1 kg soybean at Rp. 5.000,- obtain from the value added processing of soybeans into tofu is Rp. 8.455,-

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

PENGARUH PENGEMBALIAN BERBAGAI BIOMASSA TANAMAN TERHADAP SERANGAN HAMA PENGGEREK BATANG KEDELAI Agromyza sojae Zehntn I. Baidowi; J. Tethool; H S. Pribadi
BUANA SAINS Vol 12, No 1 (2012)
Publisher : Universitas Tribhuwana Tunggadewi

Afield experiment was conducted at Kampung Desay, District of Manokwari to determine the effect of several biomass applied to soil on the development of soybean stem borer infestations. A completely randomized block design was used with three replications. Seven treatments consisting of biomass monoculture of maize, peanut, soybean, mungbean and biomass intercropping maize + peanut, maize + soybean, maize + mungbean were tested. The results showed that biomass monoculture of maize significantly reduced intensity and population of stem borer. There was no significant different among production components, but the highest biomass was observed for intercropping maize + mungbean

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