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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 510 Documents

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PENGARUH PYRACLOSTROBIN PADA PEMBENTUKAN BUAH KOPI ROBUSTA (Coffea canephora) Wiharyanti Nur Lailiya; Karuniawan Puji Wicaksono; Eko Widaryanto
BUANA SAINS Vol 18, No 1 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

Robusta coffee (Coffea canephora) is one of the commodities that have high economic value among other plantation crops. Coffee is also one of the three non-alcoholic beverages (coffee, tea, chocolate) are widespread. Indonesia and among the countries located in the international coffee world, because Indonesia is the third largest coffee exporter after Brazil and Vietnam. Coffee production in Indonesia reached an average of 11.250 tonnes per year. The purpose of this study is studying the ability of pyraclostrobin on coffee fertilization, thereby reducing the occurrence of fruit drop and determining the appropriate concentrations for spraying treatment pyraclostrobin on fertilization and reduce fruit drop robusta coffee. This study was conducted in January-September 2016 in the coffee plantation Tlogosari, Tirtoyudo subdistrict, Malang regency which is located at the altitude of 560 m above sea level. The method that used in this study is a randomized block design, consisting of 6 treatments and 4 replications. While the treatment is P0 (without spraying), P1 (Spraying once a week with a concentration of 150 ppm), P2 (Spraying once a week with a concentration of 300 ppm), P3 (Spraying once a week with a concentration of 450 ppm), P4 (Spraying once a week with a concentration of 600 ppm), P5 (Spraying once a week with a concentration of 750 ppm). Giving pyraclostrobin with a concentration of 600 ppm may increase the amount of fruit compared to the treatment without giving pyraclostrobin.

PENDAPATAN USAHA PENGGEMUKAN SAPI POTONG DI DESA PACAR KELING KECAMATAN KEJAYAN KABUPATEN PASURUAN Asnah Asnah
BUANA SAINS Vol 7, No 2 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v7i2.194

Cut-cow fattening business has been developing for the last ten years due to increasing meat demand in line with increasing population. Such a business, however, is still faced by various constraints related to low capital from the breeders, lack of skills and experiences especially in cows’ health and weaknesses of local breeds. The aim of this research was to study the cost, revenue, income, efficiency and break even point of cut-cow fattening business. The study was conducted on farmers’ group of Sumber Rejeki, Pacar Keling, Kejayan District of Pasuruan Regency. The results showed that based on cots, revenue and income, the business was feasible as indicated by the revenue cost ratio of 1,2. The break even point of this business was 18,193 cows and Rp 10.107, 47/kg life weight

PENGARUH KEBIJAKAN MARKETING MIX TERHADAP PEMASARAN BENIH KEDELAI (PT. SANG HYANG SERI CABANG JAWA TIMUR DAN BALI DI MALANG) Eri Yusnita Arvianti
BUANA SAINS Vol 6, No 1 (2006)
Publisher : Universitas Tribhuwana Tunggadewi

This study was aimed to elucidate (a) marketing management of soybean seed conducted by PT Sang Hyang seri (Persero) of Malang, (b) problems encountered by PT Sang Hyang Seri in conducting marketing management of soybean seed, and (c) effect of implementation of price and distribution policies on marketing of soybean seed. The Company uses marketing mix soybean which is a combination of product, price, distribution and promotion to market soybean seed. Constraints of production aspect were due to imprecise production planning and marketing period of soybean seed. Distribution aspect faced constraints in the forms of capacities transport minimum and less paying attention of risk storey level. At price aspect produce to be burdened at price height sell resulted from by the level of production cost and also fewer funds to represent constraint at promotion aspect. Result of regression analysis indicated that price variable and distribution influenced storey level marketing of soybean seed

PENGARUH DUA JENIS PAKAN KOMERSIAL DAN PAKAN RASIONAL TERHADAP PENAMPILAN AYAM KAMPUNG Trisiwi, Harimurti Februari; Supartini, Nonok
BUANA SAINS Vol 15, No 1 (2015)
Publisher : Universitas Tribhuwana Tunggadewi

The purpose of this study was to determine the effect of two commercial feed and feed the rational against the appearance of chicken. One hundred and twenty chickens unsexed placed randomly assigned to 3 treatment groups feed with four replications, each repeat of the three feed treatments, a commercial broiler starter feed (BR-I) production Japfa Comfeed Indonesia (P1), the commercial broiler starter feed (Br IA) Charoend production Pokphand Indonesia (P2), and a rational feed prepared with crude protein (CP) and metabolizable energy (ME) commercial feed (P3). Feed and water were given ad libitum. Data observed were feed intake, weight gain, feed conversion, protein consumption, balance efficiency of protein, and amino acid consumption. Data were analyzed by analysis of variance of a completely randomized design unidirectional pattern, if there are differences in test followed by Duncan Multiple Range Test. From the results of this study concluded that the two types of commercial diets produce feed intake and higher weight gain and feed conversion efficiency and balance of feed protein is better than rational

PENGARUH BAHAN ORGANIK TERHADAP KADAR AIR TANAH DAN PERTUMBUHAN TANAMAN JAGUNG DI LAHAN KERING Eko Murniyanto
BUANA SAINS Vol 7, No 1 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

Abstract Effects of low quality organic matter application at rates of 5, 10, and 15 t/ha on soil water content and yield of maize have been studied on a dry land area of Wonogiri. The organic matters used for this study were Acasia auriculiformis, Gigantochloa apus and Sacharum officinarum litters. Results of the study showed that application of organic matter at all rates significantly increased water content and decreased C/N ratio of the soil, but did not affect water holding capacity of the soil. These changes have in turn significantly affected leaf area index, growth rate, number seed per pod, weight of 100 seeds and maize harvesting index

VARIABEL YANG MEMPENGARUHI PEMILIHAN SALURAN DISTRIBUSI SALAK KRESIKAN KECAMATAN GONDANGWETAN KABUPATEN PASURUAN Eri Yusnita Arvianti; Said Masduki
BUANA SAINS Vol 8, No 1 (2008)
Publisher : Universitas Tribhuwana Tunggadewi

The aims of this research were to describe the market balancing variable influence, goods balancing, producer balancing, and distributor balancing toward the distributor channel choosing for zalacca in Pasuruan. Respondents were taken from the population using random simple sampling technique toward the zalacca farmer. The results showed that market balancing variable, goods balancing, producer balancing, and distributor balancing simultaneously influenced decision of distribution channel choosing of zalacca by farmers at the study area. The distributor balancing variable was the dominant factors influencing the decision of distribution channel choosing

PEMANFAATAN BIOMASSA KERING (KAYU) SEBAGAI BAHAN BAKAR UNTUK MENGUJI KERJA PROTOTYPE KOMPOR BIOMASSA C. F. Mamuaja; L. Y. Hunta
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

The aims of this study were to evaluate prototype biomass stove by using wood fuel (dry biomass), to account number of wood fuel used to boil water, time for boil, fire of temperature, water temperature, pan temperature, hot energy and water heating efficiency. Descriptive analysis was used to evaluate prototype biomass stove by using wood fuel about 1 kg with three replicates. The evaluation showed that by using wood fuel process water boiled faster than that using fuel. To make water boiled only needed 6 minutes using 93 g of wood fuel while fire temperature was 792°C . To boil water about 2 liter using stove biomass needed 6 minutes using total fuel of 92,87 g. Fire temperature observed was 792°C, where pan wall temperature was 256°C and water temperature was 105°C. Total heat energy used to boil water was: 7336,73 cal; 2507,49 cal and 1578,79 cal. Efficieny of water heat that was calculated from water boil process by using stove biomass was 38,5%. Prototype stove biomassa needed smaller hole out of fire to make flame not so high, and adding hole of wind in side of fuel tube to make air aeration better and to control equipment volume fuel

KAJIAN DAMPAK LINGKUNGAN PADA PEMBANGUNAN INFRASTRUKTUR BLOK OFFICE KABUPATEN MALANG G D. Pandulu; Suhudi Suhudi
BUANA SAINS Vol 12, No 1 (2012)
Publisher : Universitas Tribhuwana Tunggadewi

By the decision that Kepanjen District becomes the capital of Malang Regency, there will be displacement of governmental infrastructure, from Malang City to Kepajen District, Malang Regency. One of infrastructures that will be built there is the Office Block in Penarukan Village and Panggungrejo Village. In the utilization of natural resources, the Government of Malang Regency takes wisdom of environmentally sustainable development. The purpose of this study is to identify effect at were actifity to environmental component, predict the impacts on the environment component, and compose prevention, mitigation, and control the negative impacts. This study is used descriptive qualitative and quantitative analysis. Based on the analysis of chemical components of geophysics, slope of 0-2%, alluvial soil, ambient air quality, and noise remained below standard of ambient air quality specified under the Rule of Governor of East Java No. 10/2009, clean water quality of inhabitant and clean water quality of river are still below standard of traffic analysis on Panji Streat is at the service level C. The environmental management direction at the pre construction stage are by using social approach and inviting a survey expert and measurement equipments which have been certified, construction stage, and post construction by social and technological approach by implementing Standard Operation Procedures

KERAGAMAN FENOTIPE DAN PRODUKTIVITAS LABU KUNING NUSANTARA (Cucurbita moschene Dutchene) DALAM RANGKA PENGEMBANGAN VARIETAS UNGGUL Reza Prakoso Dwi Julianto; Astri Sumiati
BUANA SAINS Vol 17, No 2 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

The increase of population and the depletion of productive agricultural land causes the availability of rice as the staple food as carbohidrat becomes unbalanced. Efforts to reduce dependence on rice should be made, through the diversification of alternative food crops containing high carbohydrates. Pumpkin plants (waluh) is one of the crop that have high carbohydrate content and has many types. This research aims to collect various types of yellow squash varieties as the initial material in the assembling of superior varieties, and to identify vegetative character and agronomic character of yellow squash pumpkin varieties. The research was conducted in Randuagung Village, Lumajang Regency with height of 112 asl. The materials used in are local lumajang pumpkin seeds and local poor pumpkin. The results of this study indicate that the ratio of male flowers and female flowers on both varieties of local yellow squash showed the number of male flowers more than the number of female flowers. The beta-carotene content of local lumajang is lower than the local yellow squash is seen from the color of the pumpkin the yellow is getting faded and the taste is less sweet. The resistance to the disease of both varieties of local yellow squash indicates the tolerance criteria. The male juvenile blueberry male jungle flowers are faster than the local yellow squash lumajang, but the age of the local pumpkin flower lumajang is faster than the local yellow squash.The yellow local pumpum lumajang color is relatively the same that is brown, while the varieties of local yellow pumpkin there is a difference that is brown and green.

ANALISIS DAYA SAING KEDELAI TERHADAP TANAMAN PADI DAN JAGUNG Rininta Saraswati; Salyo Sutrisno; T. Adisarwanto
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

In general soybean area is the same area of rice or maize, and in fact there were competitive between each crop. The aims of the study is to evaluate competitiveness of soybean with rice and maize. Survey methodology was applied with farmer respondent of soybean from two village namely Karanghardjo and Panunggalan , Sub District Pulokulon, Grobongan District during October 2008 to Februari 2009. Farm analysis, Equalibrium analysisi and Competitiveness was used in this study. The result showed that soybean still competitive if minimal productivity of soybean reach minimum > 1.90 t/ha and > 1.80 t/ha respectively to rice and maize with the minimum price of soybean Rp. 4.500/kg

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