Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

BUANA SAINS

buanasains
Website

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.

Arjuna Subject : -

Articles 500 Documents

13 14 15 16 17

PENINGKATAN PRODUKSI ULAT JERMAN MELALUI KOMBINASI PEMANFAATAN LIMBAH SAYURAN PASAR PADA FORMULASI MEDIA PAKAN YANG BERBEDA Erik Priyo Santoso; Akhadiyah Afrila; Eka Fitasari
BUANA SAINS Vol 17, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

Waste vegetable of traditional market provided very abundant and rarely used. German mealworm known as giant meal worms are the larvae of insects named Zhopobas morio parent has a size larger than the hongkong mealworm. The purpose of this study was to determine the application of vegetable waste in feed media of German mealworm which has a different nutrient content. This experiment using a completely randomized design (CRD) factorial design with treatment G1P1 (GE 4000 kcal / kg, PK 10%), G1P2 (GE 4000 kcal / kg, PK 12%), G1P3 (GE 4000 kcal / kg, PK 14% ), G2P1 (GE 4500 kcal / kg, PK 10%), G2P2 (GE 4500 kcal / kg, PK 12%), G2P3 (GE 4500 kcal / kg, PK 14%), G3P1 (GE 5000 kcal / kg PK 10 %) G3P2 (GE 5000 kcal / kg PK 12%), G3P3 (GE 5000 kcal / kg PK 14%), each treatments replicated 3 times. The results of the research showed that the application of vegetable waste in german worm feed media is able to increase the use of feed concentrates containing gross energy and crude protein low. Vegetable waste treatment in feed media which containing gross energy of 4000 kcal / kg and 14% crude protein showing the highest value on dry matter feed intake, weight of the harvest, and worm weight gain.

PROSPEK PENGEMBANGAN KOMODITI JAGUNG DI KECAMATAN BLULUK KABUPATEN LAMONGAN Djohan Budiman; Eri Yusnita Arvianti; F. Kasijadi
BUANA SAINS Vol 11, No 2 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Bluluk District is known as a production centre of maize in Lamongan Regency. However, the optimum maize production in this area not has not been met. This study was aimed to (a) implementation of agribussiness system in developing maize, (b) trend of harvesting area and maize yield, and (c) policies supporting maize development. This study was conducted from August 2009 – January 2010. Samples selected for this study comprised 30 farmers. The collected data were primer and secunder and the data to analyses with Qualitative-descriptive, Trend and SWOT. Results of this study showed that: (1) agribusiness system for maize development has not been maximally implemented, (2) trends of harvest area and production of maize were linear and tended to increase every year, and (3) the policy strategies for maize development using agribusiness approach consist of several aspect: (a) production, (b) institutional, (c) financial, (d) harvest technology, (e) marketing, and (f) human resource

RANCANG BANGUN DAN UJI TEKNIK KOMPOR BERBAHAN BAKAR LIMBAH BIOMASA PERTANIAN Rahmad Hari Purnomo; Endo Argo Kuncoro; Dian Wahyuni
BUANA SAINS Vol 14, No 2 (2014)
Publisher : Universitas Tribhuwana Tunggadewi

The research objective was to design and test of stove using agricultural waste biomass fuel. Engineering design was used in this research. The collected data was presented and tabular and graphical forms. This research was consisted of design, fabrication, technical test and perfomance analysis of stove which used agricultural waste biomass fuel. The observed parameters were combustion operational time, fuel consumption rate, specific gasification rate, combustion efficiency, heat energy input and ash percentage. Results showed that the highest combustion operational time was found on rice husk with magnitude of 0.43 hour and the lowest was found on wood chips with magnitude of 0.22 hour. The highest fuel consumption and gasification rates were found on wood chips with magnitude of 3.92 kg/h and 74.81 kg/m2h, whereas the lowest was found on rice husk with magnitude of 2.33 kg/h and 44.01 kg/m2h. The highest heat energy input value was found on wood chips with magnitude of 5,033.34 kcal, whereas the lowest was found on rice husks with magnitude of 3,411.29 kcal. The highest combustion efficiency was found on rice husk with magnitude of 4.67 % and the lowest was found on acacia leaves of 3.04 %. The highest ash percentage was found at rice husk with magnitude of 30 % and the lowest of 15 % was found on wood chips

ESTIMASI NILAI PEMULIAAN UKURAN TUBUH PADA PEJANTAN SAPI ACEH ( Bos indicus ) UMUR 550 HARI Widya Pintaka Bayu Putra; Hendra Saumar
BUANA SAINS Vol 18, No 2 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

Body measurements are one of livestock selection criteria for breeds standardization. This research was carried out to select the best sire at BPTU-HPT Sapi Aceh Indrapuri through body measurements at 550 days of age. Records data of livestock from 2010-2013 were used in this study and consisted of chest girth (CG), withers height (WH) and body length (BL). The average of body measurements were 105.22+6.06 cm (CG), 88.42+4.37 cm (WH) and 83.03+4.74 cm (BL). The heritability (h2) estimation were ranged from medium (CG and WH) to high (BL) criteria. Higher of standard error (SE) than h2 values was indicated that the data in this study was less and the h2 values were not accurate. The cumulative breeding value (BV) of body measurements were reached from -3.69 (Sire: A.004) to +3.89 (Sire: P.0751). Ranking of sire based on BL were not accurate because of lower relative accuracy (RA) value than 1.00 in one of tested sires.

STUDI POTENSI AIR BAKU DAN RANCANGAN PEMANFAATAN UNTUK KEBUTUHAN DOMESTIK DI PULAU TARAKAN Kiki Frida Sulistyani; Ery Suhartanto
BUANA SAINS Vol 10, No 2 (2010)
Publisher : Universitas Tribhuwana Tunggadewi

In this time in Tarakan Island availability of ill assorted water with amount of water required for society. most indicator are water of PDAM emptying into society not fluent and very society him of rainwater. Island of Tarakan have mean rainfall 4000 mm/year and 230 rain day/year. From this study result is got availability of water in Tarakan is 58.351 million m3, while the requirement of until year 2033 is equal to 37.179 million m3, so that the water balance of still surplus that is 21.172 million m3. Result of calculation of balance irrigate in every district, District of North Tarakan 17.32 million m3. District of West Tarakan -9.22 million m3, by 12 deficit month. District of Central Tarakan deficit volume -0.02 million m3 by 1 deficit month and District of East Tarakan -0.15 million m3 by 1 deficit month. District of West Tarakan need water accomodation to fulfill amount of water required, because have do not enable is again woke up by accomodation, hence the water supply of isn't it from District of North Tarakan. While for the District of Central Tarakan and East Tarakan, can isn't it from the region of each. From result of analysis potency location with AHP to get location priority scale to be woke up. Is so that obtained by plan accomplishment of amount of water required in Tarakan up to year 2033, with development 4 of dam in North Tarakan, 1 of dam in Central Tarakan and 1 of dam in East Tarakan

KOMPETISI TANAMAN DALAM BUDIDAYA LORONG Titiek Islami; Syakur Syakur
BUANA SAINS Vol 6, No 2 (2006)
Publisher : Universitas Tribhuwana Tunggadewi

Alley cropping system has been widely understood as a very effective in soil and water conservation paractices. This system is able to decrease surface run off, and at the same time increase soil fertility and productivity. However, there is also a possibility the occurence of a detrimental effect due to crop competition between the hedgerow crops and the crops. An experiment has been conducted to study the competition between the food crops and the hedgerow crops in alley cropping system. The meassurement was carried out at Jatikerto, in 2002. The hedgerow crops used in this experiment were: (a) without hedgerows, as a control, (b) Gliricidia planted with stem cutting, (c) Gliricidia planted with seed. (c) elephant grass, and (d) Vetiver. The food crops planted in the row was rainy season maize, and followed by dry season maize. The experiment results show that in Gliricidia hedgerow, both planted with seed and stem cutting, there was a light competition and no nitrogen nutrient competition. In elephant grass hedgerow, there was a nitrogen nutrient competition. When there was enough rain, although the crops water used in alley cropping system is higher than that in non alley system, there is no significant competition in crop water used. Crop water competition, especially in Gliricidia and elephant grass hedgerow, occurred during limited water avalibility at dry season

SISTEM PERTANIAN TERPADU BIOCYCLOFARMING SEBAGAI ALTERNATIF TEKNOLOGI BUDIDAYA PERTANIAN RENDAH EMISI GAS RUMAH KACA UNTUK MITIGASI DAMPAK PERUBAHAN IKLIM GLOBAL Munandar Munandar; Fritra Gustiar; Yakup Yakup; Renih Hayati
BUANA SAINS Vol 14, No 2 (2014)
Publisher : Universitas Tribhuwana Tunggadewi

Sektor pertanian menawarkan potensi sebagai mitigator dampak perubahan iklim. Sistem pertanian terpadu biocyclofarming (BCF) merupakan sistem yang memadukan tanaman-ternak diatur bersinergi sehingga terjadi siklus biologis. Karakteristik sistem BCF terkait dengan mitigasi dampak perubahan iklim adalah: adanya pengembalian limbah organik ke lahan, daur ulang yang memanfaatkan limbah, sistem pertanian tanpa limbah dengan menginstalasi bio-digester yang menghasilkan biogas. Makalah ini membahas sistem pertanian BCF berbasis tanaman jagungternak, dan mengevaluasi dampak aplikasinya terhadap penambatan C dalam tanah dan tanaman serta terhadap penurunan emisi gas CH4. Hasil kajian menunjukkan pengembalian bahan organik ke lahan meningkatkan penambatan CO2 dalam tanah dalam bentuk bahan organic tanah. Peningkatan C organik tanah berdampak positif terhadap kesuburan tanah, produksi biji dan biomas tanaman. Kandungan carbon tanah meningkat dari 2,04% atau setara dengan CO2 tertambat 40,80 ton/ha, menjadi 3,32% atau setara dengan 66,40 ton/ha pada tahun ke-6 aplikasi BCF, terjadi peningkatan carbon dalam tanah sebesar 3,65 ton/ha/th atau setara dengan penambatan 12,28 ton/ha/th gas CO2. Produksi biji jagung meningkat dari 2,1 t/ha menjadi 5,9 t/ha pada tahun ke 5 aplikasi BCF. Total biomasa tanaman meningkat dari 6 t/ha menjadi 16,8 (ton/ha). Sistem daur ulang teknologi BCF yang memanfaatkan limbah dari system usahatani yang satu menjadi input produksi usahatani menghasilkan produk yang menyimpan carbon merupakan teknologi mitigasi penambatan carbon dengan memperlambat konversi carbon menjadi gas CO2 atmosfer. Instalasi biodigester dalam teknologi BCF yang memanfaatkan limbah kotoran ternak guna menghasilkan biogas serta modifikasi ransum pakan pada ternak sapi merupakan teknologi mitigasi yang mampu menurunkan emisi gas CH4 dari kegiatan budidaya ternak sapi

KARAKTERISTIK DAN KUALITAS BIOCHAR DARI PYROLYSIS BIOMASSA TANAMAN BIO-ENERGI WILLOW (SALIX SP) C. Prayogo; N D. Lestari; K S. Wicaksono
BUANA SAINS Vol 12, No 2 (2012)
Publisher : Universitas Tribhuwana Tunggadewi

Biochar now is importance issue due to complication same meaning with “charcoal”.In development country techonology convert biomass becomes energy is called “pyrolysis“ to produce several gas such as bio-oil and biochar. Biochar produce from crop ussually consist some importance nutrient, and called as “negative carbon emitter“. In this experiment characteristic and quality bichar is produce from Fluidized Bed Reactor to usefull biomass of bio energy willow (Salix sp) at diffferent temperature 450oC, 470oC and 530oC. Evaluation was made by using LECO-2000, ICP (Inductively Coupled Plasma), SEM (Scaing Electron Microscop) and FTIR (Fourier Tranfrmed Infrared).The research result showed that increased tempereture “pyrolysis“ from 440oC to 530oC signifantly affected end product chemical composition, porous content and functional point from biochar. Additing Potassium (K) and Phosphor (P) found higher content compare the original source. On the other hand, in high temperature, all functional organic source: phenol,amine,carboxylic ,aromatic and polysacharida did not detiction

KAJIAN AGRIBISNIS TAHU (Studi Kasus di Kabupaten Biak Numfor) I Made Suaryadana; Eri Yusnita Arvianti
BUANA SAINS Vol 8, No 1 (2008)
Publisher : Universitas Tribhuwana Tunggadewi

A study that was aimed to describe financial feasibility of tofu home industry development in Biak Numfor Regency has been conducted from October to December 2008. The existing six tofu home industries in Biak Numfor Regency were subjected for this study. Results of the study showed that the average production capacity of tofu home industry in Biak Numfor Regency was 163.093 ton/year. This was based an assumption that one year is 365 days, the average production was 1.162.182 pieces. Production capacity was recorded to be 1.173.077 - 1.233.658 pieces and raw material need was 120.651 -126.882 ton / year. Labours used for tofu processing ranged from 5-6 persons with salary of Rp. 1.200.000/month/person. Own capital spent for tofu production was Rp. 1.689.700.000,- per year. Tofu producers could make profits when they could produce at least 470.941 pieces/year at a price of Rp. 2.000,- / piece. Based on the average total production for 5 years of 941.881.225 pieces with total production cost of Rp 1.233.658, the price BEP was 763,49. Considering to the B/C ratio value of 2,62, the tofu home industry was feasible for further development. Investment of tofu home industry was also feasible. This was based on the discount rate of 16%, the NPV value of Rp 967.206.279,- form the present value of Rp 995.385 542,- with investment value of Rp. 28.179.262. This indicated that tofu home industry was feasible for further development in Biak Numfor Regency

JENIS LALAT BUAH Bactrocera spp PADA TANAMAN JAMBU KRISTAL Psidium guajava di Desa Bumiaji Kota Batu I Made Indra Agastya; Hidayati Karamina
BUANA SAINS Vol 16, No 2 (2016)
Publisher : Universitas Tribhuwana Tunggadewi

The purpose of this study is to identification the type of fruit flies and the sex ratio, which attack plants Psidium guajava, in the village of Bumiaji. This research was conducted by taking samples in the plantation exploration Psidium guajava, in the village of Batu Bumiaji and identification in the laboratory of Biology, University Tribhuwana Tunggadewi. The results show that the type of fruit flies consists of two species, Bactrocera carambolae with a sex ratio of 1: 3 and Bactrocera papayae with a sex ratio of 1: 2.

Page 15 of 50 | Total Record : 500

13 14 15 16 17

Filter by Year

2006 2025

Filter By Issues

All Issue Vol 25, No 2 (2025) Vol 25, No 1 (2025) Vol 24, No 3 (2024) Vol 24, No 2 (2024) Vol 24, No 1 (2024) Vol 23, No 3 (2023) Vol 23, No 2 (2023) Vol 23, No 1 (2023) Vol 22, No 3 (2022) Vol 22, No 2 (2022) Vol 22, No 1 (2022) Vol 21, No 2 (2021) Vol 21, No 1 (2021) Vol 20, No 2 (2020) Vol 20, No 1 (2020) Vol 19, No 2 (2019) Vol 19, No 1 (2019) Vol 18, No 2 (2018) Vol 18, No 1 (2018) Vol 17, No 2 (2017) Vol 17, No 2 (2017) Vol 17, No 1 (2017) Vol 16, No 2 (2016) Vol 16, No 1 (2016) Vol 15, No 2 (2015) Vol 15, No 1 (2015) Vol 14, No 2 (2014) Vol 14, No 1 (2014) Vol 12, No 2 (2012) Vol 12, No 1 (2012) Vol 12, No 1 (2012): Edisi Khusus Vol 11, No 2 (2011) Vol 11, No 1 (2011) Vol 10, No 2 (2010) Vol 10, No 1 (2010) Vol 9, No 2 (2009) Vol 9, No 1 (2009) Vol 8, No 2 (2008) Vol 8, No 1 (2008) Vol 7, No 2 (2007) Vol 7, No 1 (2007) Vol 6, No 2 (2006) Vol 6, No 1 (2006) More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota malang,

Jawa timur

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Kota malang, Jawa timur INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota malang,

Jawa timur

INDONESIA