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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 500 Documents

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PENERAPAN FUNGSI MANAJEMEN KELOMPOK TANI DALAM AGRIBISNIS PADI SAWAH DI DISTRIK AIMAS KABUPATEN SORONG R. Silehu; E Y. Arvianti
BUANA SAINS Vol 12, No 2 (2012)
Publisher : Universitas Tribhuwana Tunggadewi

An effort has been and is being carried out by the government to increase rice production and farmers while increasing revenue in the District Aimas, as the largest rice producer in the district of Sorong, is to adopt a management function in farmer groups to improve the application of rice agribusiness. The purpose of this study to (a) Determine the influence of some management functions are implemented by farmers on the application of agri Aimas paddy in the district, Sorong regency, (b) Knowing and learning costs, revenues, benefits and feasibility of rice agribusiness Aimas District, District Sorong, (c) Knowing the factors that influence the production of rice production in the District Aimas, Sorong regency, as efforts to improve the efficient use of production factors, and (d) Determine the efficiency of rice agribusiness production factors. The results showed that the application by farmers of management functions simultaneously and significantly affect the application of partial agribusiness Aimas paddy in the district, Sorong regency.Application of management functions to contribute 66% of the variation in the application of rice agribusiness Aimas district, Sorong regency. Seen partially, a function that significantly affect the application of rice agribusiness adan planning and evaluation functions. Agribusiness rice worth it in terms of RCR value 5.53, which means that any additional production cost of Rp. 1, - will generate revenue of Rp. 5:53,-. Production factors of labor, seed, fertilizer urea, KCl fertilizer, fertilizer and pesticides SP36 simultaneously significantly affect rice production. Variations of factors of production contributed 65.8% of the variation in rice production. The dominant factor affecting rice production is labor and seed. The use of production factors of labor, seed, fertilizer and pesticides KCl inefficient and needs to be reduced its use, while. The use of urea fertilizer production factors and SP36 and yet efficient and necessary, its use to increase production

UJI BEBERAPA TEKNIK GRAFTING MANGGA VARIETAS GADUNG Astutik Astutik
BUANA SAINS Vol 8, No 2 (2008)
Publisher : Universitas Tribhuwana Tunggadewi

This research aimed to find out the effect on several mangoes grafting techniques on the growth of seed of Gadung mango variety. Five treatments consisting of A = wedge attached [spleed ent], B = inverse wedge attached [plact ent], C = slanting attached [Kina method], D = grafting [budding], and E = double and stems attached [double spled ent] were arranged in a single randomized block design with three replicates. The observed parameters included the beginning of new sprout of bud, the amount buds, height of the bud, the number of leaves, and the width of leaves, as well as the percentage of grafting succeeded. Results showed that several techniques of grafting influenced the initiation of a new fresh bud, bud heights and widths of bud in approximately 8 and 10 week after grafting, number of leaves in each season of observation, and succeed percentage on grafting. Double ent stem attached [double spleep ent] resulted highest quantity with numbers of buds around 2,59, heights of buds around 8,37 cm, number of leaves were about 17,64 ; the width or leaves around wedge attached [100 %] was better than double ent stems attached [92,5 %]

HUBUNGAN ANTARA DIAMETER BATANG DENGAN UMUR TANAMAN TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KELAPA SAWIT Vika Yudistina; Mudji Santoso; Nurul Aini
BUANA SAINS Vol 17, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

Oil palm is a plant which is quite important commodities in Indonesia and still have a fairly bright development prospects Production of fresh fruit bunches (FFB) is the result of work activities in the field of plant maintenance. The success of FFB production depends by several factors, including environmental factors, the crop factor and factor cultivation purpose of this study was to determine and learn the age and size of the trunk palm trees both in achieving production, and Knowing how the relationship between stem diameter and plant age with results production of fresh fruit bunches (FFB). This study used 75 samples are grouped according to the age of the plant that is 2 years, 4 years, 6 years, 8 years and 10 years. Each sample was observed with 7 parameter pengamatanDari results of this study can be concluded that the larger the diameter of the stem of the plant oil palm as well as the age tanama or rather would affect positively correlated or significantly affected the production of oil palm plantation itself. All variables observation showed positive correlation with stem diameter relationship of age with less plant oil palm plantations. But there was one that did not happen correlation / negative correlations were age first fruit the size of a small diameter This is due to many factors such as rainfall is high enough to some areas or plantations are often flooded by rainwater, farming areas mostly are the tidal rivers, especially in 8 years old plantation blocks and handling of the plantation itself is still lacking.

PENILAIAN PETANI TERHADAP PERANAN PENYULUH PERTANIAN SEBAGAI AGEN PERUBAHAN DI KECAMATAN DAU KABUPATEN MALANG Ahmad Zubaidi; Umi Rofiatin
BUANA SAINS Vol 11, No 2 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Agricultural extension activity in agricultural development acts as a bridge between farmers and agricultural extension agency in order to inform agriculture innovation to support and to enhance farmer business. The study aimed to determine the farmers' assessment of the role of agricultural extension investigators as an agent of change (facilitators, dynamists/liaisons and motivators) with success level of farmers. This research was carried out for 6 months, in the working area of Agricultural Extension Center of Dau Sub District of Malang Regency. The population sample was farmer groups consisted of 6 groups of beginner, 5 groups of advanced, and 3 groups of middle. The study found that farmers' assessment of the role of agricultural extension as an agent of change as a facilitator and dynamist/liaison, was not good enough and as a motivator had not been optimal yet. The success of farmers in farming in the last growing season is not good even though farmers are already implementing any new innovations with awareness. The relationship between farmers' assessment of the role of agricultural extension as a change agent with the success of farmers in farming was as facilitators, motivator, and dynamist affected the success of farmers in farming on the implementation of changes in farming activities and income of the last planting season

ADAPTABILITAS JAGUNG PUTIH PADA TANAH REGOSOL DAN KAMBISOL YANG DIBERI KOMPOS ELA SAGU Agustinus Jacob; Aurellia Tatipata
BUANA SAINS Vol 14, No 2 (2014)
Publisher : Universitas Tribhuwana Tunggadewi

Jagung putih memiliki kemampuan untuk beradaptasi pada kondisi lingkungan yang sub optimum serta merupakan makanan pokok bagi masyarakat di kabupaten Maluku Barat Daya. Tujuan dari penelitian ini adalah untuk mengetahui (1) kemampuan jagung putih beradaptasi jika ditanam di luar habitat aslinya terutama pada tanah regosol dan kambisol; (2) dosis pupuk organik ela sagu terbaik bagi pertumbuhan dan produksi jagung putih yang ditanam pada tanah regosol dan kambisol; (3) dosis pupuk dan jenis tanah yang menghasilkan pertumbuhan dan produksi jagung tertinggi.. Percobaan faktorial ini menggunakan Rancangan Kelompok Lengkap Teracak terdiri dari dua faktor dan tiga ulangan. Faktor pertama adalah jenis tanah (A), yaitu rogosol (A1) dan kambisol (A2). Faktor kedua adalah dosis pupuk organik ela sagu (B), yaitu tanpa pemberian pupuk (B0); 7,5 t ha-1, (B1); 10 t ha-1. (B2); 12,5 t ha-1 (B3); 15 t ha-1 (B4). Peubah yang diamati antara lain tinggi tanaman, jumlah dan luas daun; panjang, diamater, dan berat tongkol per tanaman, berat pipilan kering per petak, serapan hara N, P, K. Data dianalisis menggunakan analisis varian taraf 5% dan uji berganda Duncan. Hasil penelitian menunjukkan bahwa semua peubah dari tanaman yang diberi 15 t ha -1 kompos baik pada tanah regosol maupun kambisol lebih tinggi dibandingkan dengan dosis lainnya. 15 t ha-1 kompos pada tanah regosol menghasilkan N, P, K tertinggi yang diindikasikan oleh pertumbuhan dan produksi jagung putih tertinggi dibanding dengan kambisol. Jagung putih lebih mampu beradaptasi pada tanah regosol

APLIKASI TEKNOLOGI DIELECTRIC BARRIER DISCHARGE-UV PLASMA TERHADAP SIFAT FISIK DAN KIMIA TELUR AYAM (Gallus gallus domesticus) Endrika Widyastuti; Aldila Daydeva
BUANA SAINS Vol 18, No 1 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

Eggs are food that contains high nutrition, however egg products susceptible damage so preservation process is required. Dielectric Barrier Discharge (DBD) UV Plasma has proven very effective as an alternative technology to preserve fresh egg by inactivation bacteria and prevent contamination in a fresh egg. the aim of this study is to evaluated effect of Dielectric Barrier Discharge (DBD) UV Plasma on physical and chemical quality of chicken eggs (Gallus gallus domesticus). The fresh eggs were stored at room temperature and assessed for their Physical (Haugh unit and yolk index) and chemical properties (yolk pH, albumen pH, and egg nutrition) on 0, 5, 7, 11, and 14 days. Analysis of variance (ANOVA) was used to analyze significant difference among the samples. The result shows that DBD UV plasma can maintain haugh unit, yolk index, yolk pH, and albumen pH than control. The eggs treated with DBD UV recorded have no significant difference for egg nutrition.

TEPUNG UBI JALAR SEBAGAI SUMBER ENERGI PAKAN DALAM UPAYA PENINGKATAN KUALITAS KARKAS AYAM PEDAGING Nonok Supartini; Sumarno Sumarno
BUANA SAINS Vol 10, No 2 (2010)
Publisher : Universitas Tribhuwana Tunggadewi

This research is executed in Laboratory Field Ranch of University of Tribhuwana Tunggadewi Malang. The aims of this research is to determine influence of sweet potato creep as source of energy to crabbed weight, chest weight, heavy of thigh, and abdominal fat weight. Research items the used is broiler counted 80 tail have male sex to of finisher weighing of Wal 963,37 + 31,23 g, which is used in this research is Strain Lohman Platinum which produced by PT. Multi Breeder Adirama Indonesia. Method which is used in research is attempt method by using complete random device which consist of 4 treatment where every treatment repeated by 5 times and each restating consist of 4 chicken tail. This research can be concluded that gift of sweet potato creep as source of energy give result of crabbed weight P0 1199,40; P1 1138,98; P2 1076,60; P3 1038,20 chest weight of P0 358,08; P1 366,60; P2 337,80; P3 323,40 thigh weight of P0 479,80; P1 472,94; P2 468,40; P3 442,00 and abdominal fat weight of P0 33,20; P1 35,60; P2 25,40; P3 27,80. Chest weight, heavy weight, thigh weight and weight of abdominal fat which is equal to maize but gift 10% flour of sweet potato creep from totalizeing ransom tend to give result of better. Is suggested to increase heavily chest, heavy of laboured by abdominal fat and thigh of percentage of treatment food of sweet potato maximal 10%

SINKRONISASI MINERALISASI NITROGEN DAN FOSFOR BIOMASA TUMBUHAN DOMINAN DI LAHAN KERING Riyanto Djoko
BUANA SAINS Vol 6, No 2 (2006)
Publisher : Universitas Tribhuwana Tunggadewi

An effort to improve nutrients released from decomposing Cassia hirsuta, Centrosema pubescens, Phaseolus lunatus, Psophocarpus tetragonolobus, Mimosa somian and Flemingia congesta was carried out by mixing the plant biomass with farmyard manure locally available at the area. Each type of the biomass was mixed thoroughly with the manure at two levels (10% and 20% by weight). Twelve treatments (six plants biomass and two levels of farmyard manure) were arranged in a Factorial Randomized Block Design with three replicates. Results of the field experiment indicated that the mixture of 80% Cassia hirsuta and 20% manure left the highest amount of N and available P in the soils, whereas the mixtures of 90% Mimosa somian + 10% manure and 90% Centrosema pubescens + 10% manure treatment resulted in the lowest amount of N and available P in the soil, respectively. Application of 80% Centrosema pubescens + 20% manure resulted in the highest amount of N and P taken up by maize at 12 weeks. The highest amount of N and P taken up by maize, whereas the lowest amount of N and P taken up by maize was observed for the mixture of 90% Flemingia congesta +10% manure and the mixture of 90% Centrosema pubescens + 10% manure, respectively. The best synchronization between N released and maize demand for nitrogen was obtained by application of 80% Cassia hirsuta + 20% manure (efficiency of 50,67%), and that of P was obtained by application of 90% Flemingia congesta + 10% manure (efficiency of 74,76%)

PERUBAHAN DISTRIBUSI PORI TANAH REGOSOL AKIBAT PEMBERIAN KOMPOS ELA SAGU DAN PUPUK ORGANIK CAIR June A. Putinella
BUANA SAINS Vol 14, No 2 (2014)
Publisher : Universitas Tribhuwana Tunggadewi

Tanah merupakan media pertumbuhan tanaman yang sangat kompleks. Agar tanaman tumbuh dengan optimum maka tidak hanya membutuhkan unsur hara yang cukup dan seimbang, tetapi juga memerlukan lingkungan fisik, kimia dan biologi tanah yang sesuai sehingga akar tanaman dapat berkembang dengan bebas demikian juga proses fisiologinya. Suatu percobaan rumah kaca yang bertujuan untuk mengetahui pengaruh pemberian dosis kompos ela sagu dan dosis pupuk organik cair terhadap perbaikan distribusi pori tanah Regosol. Percobaan menggunakan Rancangan Acak Kelompok yang diulang tiga kali. Faktorpertama adalah dosis kompos ela sagu yang terdiri dari: K0 (tanpa kompos ela sagu), K1(15g/polibag) dan K2 (30g/polibag),Faktorkedua adalah pupuk organik cair yang terdiri dari C0 ( tanpa perlakuan), C1 (3ml/polibag) dan C2 (6 ml/polibag). Hasil percobaan menunjukan bahwa kombinasi pemberian kompos ela sagu pada dosis30 g/polibag dan pupuk organik cair dosis 6 ml/polibag berpengaruh meningkatkan pori drainase lambat menjadi 4,83% dan pori air tersedia menjadi 9.07%. Sedangkan secara mandiri dapat meningkatkan pori air tidak tersedia menjadi 14.17% pada dosis perlakuan kompos15 g/polibag, sedangkan pada dosis perlakuan pupuk organik cair 6 ml/polibag menjadi 14.66% dan menurunkan pori drainase cepat menjadi 21.86% pada dosis kompos 30 g/polibag dan 26.21% pada dosis pupuk organik cair 6ml/polibag

PROSES PEMBUATAN ETHANOL SEMIKONTINYU MELALUI REKAYASA ALAT FERMENTOR FLUIDISASI Fathorrahman Fathorrahman; A. Swastika S; N. Yuliana; S.P. Abrina A
BUANA SAINS Vol 12, No 2 (2012)
Publisher : Universitas Tribhuwana Tunggadewi

Bioetanol is alternative fuel substitute potentially and ethanol is a process of biomass fermentation by using microorganisms. This research is a solution of obstacles faced in fermentation process of batch, which is more commonly used ethanol that is the existance of production of ethanol which will poison microorganisms in fermentation process and even stop the growth and production of ethanol. The research result is expected to give possibility to produce technological innovation by knowing maximum results of the opening of flow rate to the ethanol productivity and efficiency process and quality of product. This technology possibly applied as effective and efficient technology for ethanol production system. The method of this research uses system of semi continue using fluidisasi fermentation using saccharomyces cerevisiae amobilzed which can improve effectiveness the process of manufacture ethanol less than 50 hours faster than conventional fermentation (in batch) commonly the results obtained only maximally 13,85 for 72 hours (3 days). The results showed that the process of semi continue fluidisasi fermentation is amobilized it done only for 24 hours and obtained 20% ethanol level of 300 opening rate of fluid flow, 22% ethanol level of 600 opening rate of fluid flow, and 23% ethanol level of 900 opening rate of fluid flow

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