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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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STRATEGI PENGUATAN POSISI TAWAR PETANI BAWANG DAUN MELALUI PENGUATAN KELEMBAGAAN Ana Arifatus Sa’diyah; Dyanasari Dyanasari
BUANA SAINS Vol 16, No 1 (2016)
Publisher : Universitas Tribhuwana Tunggadewi

The purpose of this research are to determine : (1) the marketing channel that efficient scallion cultivation ; (2) institutional in scallion cultivation and its role in the marketing of scallion cultivaion ; (3) To know the scallion farmers' bargaining position ; (4) determine institutional strengthening strategy and its relationship with the scallion growers bargaining scallion farmers . The analytical method used in this research is descriptive method of analysis . The research results show : there are 4 chain marketing channels of scallion in Probolinggo district , and VI channel is the most efficient channel ; There are two agricultural institutions in the location of research , namely cooperatives and farmer groups that have a role on the marketing of scallion ; Bargaining position of farmers in the location of research is still relatively low ; and Institutional Strengthening Strategy farmers in order to improve the bargaining position of farmers one of them can be done with intensive training on institutional members

EFEKTIFITAS PENGELOLAAN LIMBAH CAIR PADA INDUSTRI KAYU LAPIS DI KALIMANTAN SELATAN D. Subari; Udiansyah Udiansyah; B. Yanuwiyadi; B. Setiawan
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

This paper reports the effectiveness and efficiency of wastewater treatment decreased levels of contamination in the treatment of wastewater from three plywood industries in in South Kalimantan. The results showed that the liquid waste from washing mixer glue and glue spreader quality was lower than the quality of streams Barito’s river and Martapura’s river, so if not treated will cause pollution in the river flows. Results of waste analyses at the inlet and outlet showed that the efficiency of WWTP in the plywood industry was high at 67% to 99%, with 0.007 m3/m3 water discharge of the product. Based on South Kalimantan Governor Decree No. 036 of 2008, the maximum discharge of 0.30 m3/m3 of products, so as to meet quality standards. Sludge at the WWTP can be used as a mixture of adhesive (filler)

KETERSEDIAAN FOSFAT, SERAPAN FOSFAT DAN HASIL TANAMAN JAGUNG AKIBAT PEMBERIAN BOKASHI ELA SAGU DENGAN PUPUK FOSFAT PADA INCEPTISOLS M. La Habi
BUANA SAINS Vol 12, No 1 (2012)
Publisher : Universitas Tribhuwana Tunggadewi

The aim of this research was to determine the P-availability, P-uptake and maize yield due to applied sago pith waste bokashi with phosphate fertilizer on Inceptisols. This research was conducted in the in the greenhouse at the Faculty of Agriculture, Brawijaya University. The experimental design was completely randomzzed factorial design with two factors. The first factor was sago pith waste bokashi and the second factor was phosphate fertilizer (SP-36).The results showed that the sago pith waste bokashi combined with fosfat fertilizer increased soil pH, P availability in soil and dry grains yield of maize, meanwhile the sago pith waste bokashi and fosfat fertilizer individually increased P-uptake of plant. The best dose of the sago pith waste bokashi was 80 t/ha and fosfat fertiizer was 240 kg P/ha effectively increased dry grains yield of maize that was equal to 7,85 t/ha

PEMANFATAN CAMPURAN PANGKASAN TUMBUHAN IN SITU DANKOTORAN TERNAK ULAT JERMAN UNTUK MENINGKATKAN PERTUMBUHAN DAN HASIL TANAMAN JAGUNG Riyanto Djoko; Presti Ameliawaty
BUANA SAINS Vol 17, No 2 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

Field trial designed by a randomized block design factorial, three replication. The first factor is plant prunings 3 kinds of material mixed with cattle dung manure worms Germany and the second factor treatment fertilizer composition comprising a mixture of three kinds consists of: Tithoniadiversifolia, Cromolaenaodorata and Gliricidiasepium. Fertilizer composition comprising a mixture of: 90% of plants + 10% manure, 80% growth + 20% manure and 70% growth + 30% manure. Of the two factors obtained 9 treatment combinations. The observationdone for variable of : root dry weight, stem dry weight, dry weight of cob and dry seed weight per ear at harvest. Statistical analysis of the parameters of the observations were made using a variety of tests (test F) Random Block Factorial and continued with Duncan test level of 5%. Results of the experiments showed that: a). The use of a mixture of crop plants in situ with caterpillar droppings German influence on stem dry weight, root dry weight, dry weight and the weight of dry seed cob corn crop. b). The highest weight of dry seed treatment derived from the addition of a mixture of crop Gliricidia sp. 70% with caterpillar droppings Germany 30% (165 grams), while the lowest of the crop mix treatment Titonia sp. 90% with caterpillar droppings Germany 10% (112.3 g).

PERAN ASAM HUMAT DAN FULVAT DARI KOMPOS DALAM DETOKSIFIKASI ALUMINIUM PADA TANAH MASAM Imam Wahyudi
BUANA SAINS Vol 7, No 2 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

A study that was aimed to elucidate roles of Gliricidia sepium and Tithonia diversifolia composts and their extracted humic and fulvic acids on aluminum concentration in an Ultisol was conducted in a laboratory. Those composts and humic and fulvic acids extracted from them were mixed with soil and incubated for 90 days. Results of the study showed that the highest decrease in exchangeable Al concentration (90,5%) was observed for Tithonia fulvic acid treatment during 90 days, followed by Tithonia compost (88,4%), Gliricidia fulcic acid (82,3%), Gliricida compost (82,2%), Gliricidia humic acid (82,3%), and Tithonia humic acid (75,7%) treatments. In general, rate of change in exchangeable concentration was fast for the first 45 days, but it then slowed down during the second 45 days (45-90 days). This was particularly observed for humic and fulvic acid treatments, whereas compost treatment still showed subsequent decrease. It was concluded that roles of humic and fulvic acid in reducing exchangeable Al was only a short term, whereas compost played roles in a long term. In terms of capability in reducing exchangeable Al, Tithonia compost and its humic and fulvic acids was better than Gliricidia compost and its humic and fulvic acids

PELEPASAN NITROGEN DARI PANGKASAN POHON LEGUM PADA SISTEM BUDIDAYA PAGAR Y. Nuraini; E. Handayanto
BUANA SAINS Vol 6, No 1 (2006)
Publisher : Universitas Tribhuwana Tunggadewi

Decomposition and nitrogen mineralization of prunings from five species of legume hedgerow trees (Calliandra calothyrsus, Peltophorum dasyrrachis, Leucaena leucocephala, Gliricidia sepium, and Flemingia congesta) in relation to the pruning quality and methods of pruning application were studied in a laboratory and in the field. N mineralization of the prunings was tested upon application to the soil in a laboratory under controlled leaching and non-leeching conditions over the period of 14 weeks. The absolute decomposition rates of the prunings was measured using litterbags placed randomly on the soil surface or incorporated in the soil in the field over the period of 8 weeks. The results showed that the contribution of decomposing pruning materials to the soil was not only associated with their quality and with the leaching conditions, but also with the method of application of the prunings in the field. The decomposition and N release rate constants of the prunings declined in the order of Gliricidia> Leucaena > Flemingia > Calliandra > Peltophorum for all experiments carried out. The effect of quality of N release from legume prunings was modified by leaching conditions. Where there was no leaching, the protein-binding capacity of polyphenols in the prunings can play an important role in controlling the rate of N release. Under leaching conditions, the combined (lignin + polyphenol)/N ratio became an important quality factor in affecting the N release. The amounts of N released from the prunings placed on the soil surface were much smaller than those released from the incorporated prunings

KAJIAN PENAMBAHAN Effective Microorganisms (EM4) PADA PROSES DEKOMPOSISI LIMBAH PADAT INDUSTRI KERTAS Nana Dyah Siswati; Herwindo Theodorus; Puguh Wahyu Eko S
BUANA SAINS Vol 9, No 1 (2009)
Publisher : Universitas Tribhuwana Tunggadewi

The solid waste at PT Kertas Leces Probolinggo has not been properly handled as it is just ended in the waste landfill. Composting is a method to process the solid waste with a high organic content. In that process the organic agent is degraded by micro organism that driving to stabilize the organic content. In this research effective micro organism (EM4) was used as a disspator organism in some range of concentrate (2,4,6,8,10) (%) v/b and observed in 5,10,15,20,25 days composting time. The best result was reached on the concentrate of 2 % EM4 & 25 days decomposting time, with the rasio C/N = 14,11 (most land has rasio indicator C/N closed to 10) comparing to the previous grade = 33,24.

EFISIENSI PEMASARAN KARET RAKYAT DI KECAMATAN DUSUN TENGAH KABUPATEN BARITO TIMUR Sujarwo Sujarwo; Sri Umi Lestari
BUANA SAINS Vol 7, No 1 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

Objectives of this study were to elucidate efficiency level of rubber marketing at Dusun Tengah District, Barito Timur Regency. The study was conducted at. 60 farmers were randomly selected from three villages of Unsum, Lenggang and Puri, Dusun Tengah District. Samples of marketing agencies were selected based on non probability sampling method. Data analyses were analysis of profit function, and analysis of marketing, as well as descriptive analysis on market structure, performance and conduct to qualitatively measure marketing efficiency. Results of the study showed that there we two marketing channels in the study area, i.e. channel 1: Farmer –trader 1 –trader II (distributor) – rubber processing factory, and channel 2: Farmer –trader II (distributor)- rubber processing factory. Analysis of marketing margin indicated that price share received by farmers was 67,35%, whereas that received by trader I was 79,59%, and that received by trader II (distributor) was 100%. Marketing margin was not evenly distributed in between trader I and trader II (distributor) as trader II received the highest margin of 40,94%

DAMPAK PEMBERLAKUAN TARIF IMPOR TERHADAP KINERJA EKONOMI KOMODITAS KEDELAI DAN DISTRIBUSI KESEJAHTERAAN DI INDONESIA Elok Nurhiasati; Moh. Rifai; Asnah Asnah; Wahyunindyawati Wahyunindyawati
BUANA SAINS Vol 10, No 1 (2010)
Publisher : Universitas Tribhuwana Tunggadewi

Research was aimed at: 1) analyzing the effect of imported soybean tariff policy on demand, supply, price and import of soybean, 2) analyzing import tariff policy of soybean and effects on related economic units’ welfare that covered producer, consumer, and government. Secondary data being used, involving time series of years 1969-2002, analyzed by simultaneous equity system using 2 SLS, continued by analyses of policy simulation and welfare distribution. Import tariff policy produces some effects such as decrease total demand, declined demand for tempe industry, increased demand for tahu industry, decreased demand for ketchup industry, reduced demand for seed, improved supply, decreased farmer level price, inclined wholesale price, increased imported price and descended import. Welfare distribution analysis display that import tariff influences the improvement of producer’s surplus and government’ income but yields in reduced consumers surplus and economic inefficiency of production and consumption. Higher import tariff implicates higher economic inefficiency as shown by higher netto effect value, showing the decrease of total welfare rate. The most suitable import tariff policy connects to 30% because ratio value of producer’s and consumer’s surplus and ratio of government income and consumer’s surplus remain highest compared to other alternatives

PERSYARATAN LAHAN TANAMAN PORANG (Amarphopallus ancophillus) Bambang Siswanto; Hidayati Karamina
BUANA SAINS Vol 16, No 1 (2016)
Publisher : Universitas Tribhuwana Tunggadewi

Porang is a commodity crops are included in the family Araceae and the bush plants (herbs) with a single bulb in the ground. Porang grow in the forest because it requires only 50-60 percent of solar radiation. Porang can grow well in organic soil and dry soils with pH 6-7. For the purposes of the development porang required information about land suitability map. One of the constraints in preparing the land suitability map porang, is the unavailability of land requirements porang. Currently available is a land requirement of iles-iles. The purpose of this study was to develop land requirements porang, in order to work in the land suitability evaluation porang no longer use land requirements iles-iles. The research location is KPH Nganjuk region. The research was conducted in January to May 2012. The primary data obtained from field observation, while secondary data obtained from the literature, maps, and interviews with farmers and Perum Perhutani KPH Nganjuk employee. At every SPL was observed physical condition and taking soil samples.Not all parameters of land requirements Iles - iles can be used to evaluate the suitability of Porang. Parameter requirements Iles - iles that can be used to evaluate the Porang is coarse material, CEC, salinity, erosion, flood hazards, land preparation, dry months, C-organic. Proposed requirements for crop land porang as shown in Appendix 1

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