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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.

Arjuna Subject : -

Articles 500 Documents

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PERBAIKAN KETERSEDIAAN P DAN EFISIENSI SERAPAN P OLEH TANAMAN BAWANG PREI DENGAN PEMBERIAN ASAM-ASAM ORGANIK DAN CMA PADA TANAH Machfud Effendy
BUANA SAINS Vol 8, No 1 (2008)
Publisher : Universitas Tribhuwana Tunggadewi

A study on the influence of organic acids and AMF application to availability of P before planting and after harvesting, as well as contribution to P absorption by Leek plant had been done. The treatments consisted of 2 combinations. There were 8 treatments for the first factor, i.e. control, oxalic acid (Ao), C2H2O4.2H2O (0,01 % and 0,02 %), citric acid (As), C6H8O7.H2O 0,01 % and 0,02 %), mix of Ao 0,01 % + As 0,01 %, Ao 0,02 % + As 0,02 %, and inoculation of AMF A.tuberculata. Treatments of the second factor were P-fertilizer and no P-fertilizer. The experiment was arranged in fully randomized design (FRD) with 3 replicates. Results of the study showed that application of organic acids at soil having high potency to P adsorption increased P availability before planting, but AMF inoculation did not give any effect. After harvesting, availability of P was lower than that of the control, nevertheless the treatment of AMF inoculation gave stabile availability of P. Organic acids did not contribute to plant in efficiency of P absorption, moreover at the mix of oxalic acid and citric acid to lower in efficiency

TEKNOLOGI DAUR ULANG KERTAS KORAN MENJADI KERAJINAN TANGAN BERNILAI JUAL TINGGI DAN ANALISA KELAYAKANNYA (Studi Kasus Di Kelompok Ibu Rumah Tangga Sekarwangi Malang) Eri Yusnita Arvianti; Karunia Setyowati Suroto; Tourusman Situmeang
BUANA SAINS Vol 16, No 2 (2016)
Publisher : Universitas Tribhuwana Tunggadewi

Trash from the newspaper is something that is often overlooked and considered one eye by some people. Midden in down-town city often do not immediately handled well. In fact, if utilized will bring value to the efforts to find a distinct advantage. Garbage such as old newspapers, cardboard and garbage that comes from the dried leaves can be recycled into craft high value such as bags, photo frames, mirror frames, tissue box, blocnotes. This study aims to look at the benefits, costs and feasibility of the business of recycling newsprint. This event was held at the business group Sekarwangi from April to November 2016.The method applied is a method of collecting primary and secondary data. A set of analysis applied to answer this purpose, such as total cost, total revenue and net BC ratio. The analysis showed that the amount of the costs and benefits of newsprint recycling efforts have amounted Rp 46.612.400, - and Rp. 82.500.000, -, and this business is viable with the BC ratio of 1.77. Through the application of good management in marketing and finance will take this business as a promising business venture because it can help in increasing the family income.

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,-

PENGARUH UMUR BATANG BAWAH DAN NAUNGAN TERHADAP KEBERHASILAN GRAFTING PADA TANAMAN DURIAN (Durio zibethinus Murr.) LOKAL Hanif Fatur Rohman; Roedy Soelistyono; Nur Edy Suminarti
BUANA SAINS Vol 18, No 1 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

Durian (Durio zibethinus Murr.) has a great sale value, beside its delicious flavor; it also contains variety of nutrients such as Vitamins B, C, E and Iron that are beneficial for human health.The main problems in improving the local durian is limited availability of quality seeds. Durian development undertaken by local farmers generally from generative, thereby causing the vegetative phase takes longer (about 7-10 years) and make generative phase come later. It is one of the obstacles in the productivity and quality of durian.It is one of the obstacles in the productivity and quality of durian. But with advances in technology, these obstacles can be overcome by using a mini-graft method to produce superior durian seedling.The purposes of this research are to get the right age and precentage of shade on grafted durian seedling and to determine the influence on growth and yield of grafted plants. This research conducted on january – oktober 2016 on Durio Kingdom Farm, Ngantang, Malang Regency on 660 asl. The experiment was conducted using split plot design. The main plot is percentage shade (N): shade 0%, shade 40%, shade 60% and shade 80%, while the subplots are seedlings (A) is 15 weeks age rootstock, 17 weeks age rootstock and 19 weeks age rootstock. The results of this study showed that 17 weeks Age seeds give better results, shade are gives better results for use in plant nurseries durian is shade with a density of 40%.

PRODUKSI DAN KECERNAAN IN-VITRO RUMPUT GAJAH PADA BERBAGAI IMBANGAN PUPUK NITROGEN DAN SULFUR Sri Susanti
BUANA SAINS Vol 7, No 2 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

The research was aimed to observe production and in-vitro digestibility of Elephant grass with different ratio N : S fertilizer. This research with experimental methods was executed in two phases. The first phase was Elephant grass cultivation with different ratio of N : S fertilizer. The second phase was measurement of in-vitro digestibility. Seven treatments and three blocks were arranged in a Randomized Block Design. The results showed that fertilization of S did not significantly affect production and digestibility of Elephant grass. Over application S fertilizer reduced in-vitro digestibility (dry matter / DM and organic matter / OM). The best of DM digestibility (62,59%) and OM digestibility (65,41%) were at ratio N : S fertililzer = 300 : 0

PENGGUNAAN BUDIDAYA LORONG UNTUK REHABILITASI TANAH TEREROSI W.H. Utomo; Titiek Islami
BUANA SAINS Vol 6, No 1 (2006)
Publisher : Universitas Tribhuwana Tunggadewi

An experiment had been carried out to study the potential of alley cropping system for rehabilitation of eroded soil. The experiment was carried out on Vertisols at Ngrimbi, Jombang, East Java. The results showed that planting Gliricidia as an hedgerow crop in an alley cropping system improved the properties and fertility of eroded Vertisols. After 10 years of the practice, there was an increase in soil organic-C, soil N, Soil-P, and soil-K. As a result of increasing soil organic-C, there was an improvement of soil aggregation, water holding capacity, and available soil water. Improvement of soil fertility with alley cropping resulted in an increase of maize and soybean yields. The yields of maize and soybean in a non alley cropping system, on the other hand, constantly decreased with time

ANALISA PROSES DAN FINANSIAL PERMEN DENGAN APLIKASI SUSU KAMBING DAN SUSU SAPI AFKIR Wahyu Mushollaeni; Endang Rusdiana
BUANA SAINS Vol 9, No 2 (2009)
Publisher : Universitas Tribhuwana Tunggadewi

Cow and goat’s milk are animal husbandry’s products which are very easily damaged. Quality and price declines with along storage. Therefore, its necessary to find a technology to increase the selling value of cow and goat's milk that is not fresh or otherwise disposed of, but are still suitable for consumption. This was an experimental study using paired t test to compare the quality of unfresh cow's milk and goat’s milk candy. The aimed of this research were to analyze the financial feasibility of the process and the use of unfresh goat milk and cow's milk in a candy rejects. The best treatment was the used of goats milk, with fat content, protein, vitamin C and water content were 14,9%; 12,7%; 0,22% and 14,57%. Financial aspects of this best result were Payback Period 4,267 years; Net BC ratio 1,705; BC ratio 1,347; NPV (18%) Rp. 17.645.615,90; BEP 3.912,40 packs or Rp 24.691.930,99 or 20,4%; and also IRR 28,4%

KAJIAN POTENSI AIR DAN PENGEMBANGAN SUMBERDAYA AIR DAS SEMBAYAT (PENGEMBANGAN WILAYAH UTARA KABUPATEN GRESIK) Dian Noorvy Khaerudin
BUANA SAINS Vol 7, No 1 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

A study that was aimed to analyze the potency of surface water for water resource development of the Gresik Regency was conducted by analyzing available rainfall and water discharge data. Results of this study showed the occurrence of water potency deficit and water shortage. Discharge of water from river flowing through the Gresik Regency did not originally come from excessive rainfall but it came from sea water flowing into the river at certain months, and from upstream and midstream discharges of Bengawan Solo river. Climate affected conditions of water resource potency which its main source is rainfall. Hence water supply could not be relied only from rainfall. The existing surface water can only provide 50% of the water need of the Gresik Regency for domestic uses and other 50% for industrial purposes. The remaining water need should be sought from other sourves such as drilling well, small basins and lakes

POTENSI WISATA BANGUNAN KOLONIAL DI KOTA MALANG Debora Budiyono; Riyanto Djoko
BUANA SAINS Vol 10, No 1 (2010)
Publisher : Universitas Tribhuwana Tunggadewi

The research about potential of colonial building tourism in Malang city aimed to identify buildings related to the colonial history in Malang city, analyze the historical value and point of interesting view of potential of colonial building tourism which could be developed in Malang city. This research was done on the several areas in Malang city i.e. a) East-West stripe covered: Alun-Alun Tugu area, Kahuripan street, Semeru street and Ijen street and b) North-South stripe covered: Jaksa Agung Suprapto street, Basuki Rahmad street, Alu-Alun Merdeka area and Chinatown residence. The method used was descriptive method. Furthermore, data analysis method used two step i.e. 1) building value considered from sicio-culture aspect and 2) determination of potential of colonial building tourism. Based on socio-culture aspect analyzed, there were 12 locations having different potential of colonial building tourism. The locations having the highest value of socio-culture i.e. Ijen area, whereas the lowest was Kahuripan street

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