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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 510 Documents

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POTENSI PEMBENAH TANAH BIOCHAR DALAM PEMULIHAN SIFAT TANAH TERDEGRADASI DAN PENINGKATAN HASIL JAGUNG PADA TYPIC KANHAPLUDULTS LAMPUNG N. L. Nurida; A. Rachman; Sutono Sutono
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

At present food crop agriculture in the dry land faces to management problem that does not meet with potential and adaptability. Beside problems on how to reduce soil chemical degradation, the rehabilitation activity to recovery soil characteristics is also a problem Agriculture waste product which difficult to decompose such as coconut husk, rice hull, and stem wood is potential to be used as soil amendment through bio-char by incomplete burning. The aim of this study was to test the effects different agricultural waste products in improving soil physical and chemical quality and production of maize. A field experiment was conducted at Taman Bogo Exp Station, Lampung. A split plot design with three replicatees was employed. Main plot was three soil amendment biochars ( SP50, SP75 and KS50), and as sub plot was: control, and three levels of soil amendment application (2,5; 5,0 and 7,5 t/ha). The results showed that three formulas of soil amendments improved f soil physic and chemical charactristics, while different level of soil amendment only significantly affected porosity of soil water available (PAT). Three formulas of soil amendment also increased yield of maize. The proper dose of soil amendment for three formulas ranged from 5,0 to 7,5 t/ha

KERAGAMAN KLON PHALAENOPSIS HASIL RADIASI SINAR GAMMA : PERUBAHAN FENOTIF FASE PERTUMBUHAN VEGETATIF Astutik Astutik
BUANA SAINS Vol 12, No 1 (2012)
Publisher : Universitas Tribhuwana Tunggadewi

Phalaenopsis is the most popular orchid for the consumer, because it has unique and interesting color, shape and size of flower and some flowers fragrant. One of the ways to improve the diversity of color and shape of the Phalaenopsis flower can be done by artificial mutation through gamma radiation. The study aims to determine the effect of Gamma ray radiation in Phalaenopsis phenotypes during vegetative growth. The experiment was conducted in two places; the implementation of radiation was carried out in BATAN Jakarta and then acclimatized in Green’s house of farmers in Bumiayu Village, Kedung Kandang, Malang in the months from January to June 2011. The experiment was arrange single Completely Randomized Design using dosage of gamma radiation treatment five levels: 0 krad (R0); 1.0 krad (R1); 2.0 krad (R2); 3.0 krad (R3) and 4, 0 krad (R4). Each treatment consist of fivereplication. The observations were made on the parameters of the number of leaves and the length and width of leaves at week 4, 8, 12, 16, the percentage (%) of plant life, color and leaf shape and the content of chlorophyll were measured at the end of the observation. The results show that the dosage of Gamma radiation influenced the number in leaves, the leaves color and shape, the amount of chlorophyll, but has no effect on the length and width of leaves at 16 weeks after radiation. The higher dose of gamma rays affected the vegetative growth slowest at dosage of 4.0 krad. Gamma ray dosage from 1.0 to 4.0 krad are able to produce color change in Phalaenopsis leaves

PROPORSI PENGGUNAAN BERBAGAI JENIS DAUN TANAMAN UNTUK PAKAN TERNAK KAMBING PADA LOKASI DAN KETINGGIAN BERBEDA DI WILAYAH MALANG RAYA Susanti, Sri; Marhaeniyanto, Eko
BUANA SAINS Vol 17, No 2 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

This research to inventory of tree foliages leaves and proportion of potential utilization as animal feed on the different location and altitudes in Malang Raya. For the long term, the study aims to assess the potential of several types of tree foliages leaves as feed in order to provide quality animal feed, relatively inexpensive for sustainable livestock development.The research method was survey study and conducted in five districts centers goat in Malang Raya. The results showed that there were 30 types of forage used as goat feeds, both leaves of tree foliages and shrubs, or grasses, crop residues and the others. Most forages (73%) were the leaves of tree foliages and shrubs, both legumes and non legumes. Tree foliage leaves were more used as goat feeds in the study area with higher altitude, whereas in the study by a lower altitude also utilize grasses and crop residues. The leaves of tree foliages used by the respondents in the study area were Paraserianthes falcataria, Gliricidia sepium, Artocarpus heterophyllus, Leucaena leucocephala and Calliandra calothyrsus. Paraserianthes falcataria most widely used in Klampok- Singosari (88.3%).The proportion of use Calliandra calothyrsus ranged 32-98%, while Gliricidia sepium 58-98%, both were most widely used in Argoyuwono-Ampelgading. Artocarpus heterophyllus most widely used in Wajak (90.3%), whereas Leucaena leucocephala leaf used by all respondents (100%) in Sumberdem-Wonosari. For further research is necessary to evaluate the quality of a potential tree foliage leaves in Malang, in order to provide quality animal feed through supplementation technology to sustainable livestock development.

PENGGUNAAN ONGGOK SEBAGAI ADITIF TERHADAP KANDUNGAN NUTRIEN SILASE CAMPURAN DAUN UBIKAYU DAN GAMAL Nonok Supartini
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

The experimental methods and design was carried out by Completely Randomized Design (CRD) with four treatments, replicated five times and 21 day long fermentation process. Based on analysis of variance showed that average DM (Dry Matter) content in each treatment amounted were: P0 = 22,83%; P1 = 23,58%; P2 = 25,12% and P3 = 26,95%. Average OM (Organic Matter) content were: P0 = 91,05%; P1 = 91,01%; P2 = 90,59% and P3 = 91,74%. Average CP (Crude Protein) content were: P0 = 20,91%; P1 = 21,08%; P2 = 22,33% and P3 = 22,81%. Based on analysis of variance showed that different level of onggok gave significant difference (P

KARAKTERISASI BUNGA DAN BUAH MANGGA HASIL PERSILANGAN ARUMANIS-143 (A) X SWARNARIKA (S), ARUMANIS-143 (A) X HADEN (H) DAN ARUMANIS-143 (A) X CARABAO (C) Ristianing Dwi Fitriani; Mochammad Roviq; Tatik Wardiyati
BUANA SAINS Vol 14, No 1 (2014)
Publisher : Universitas Tribhuwana Tunggadewi

Mango is one of export commodities of Indonesia. The research objective was to character-rize the mango flowers and fruit crossing of Arumanis-143 (A) x Swarnarika (S), Arumanis-143 (A) x Haden (H) and Arumanis-143 (A) x Carabao (C). Experiments through descriptive methods. Morphological characters of mango flowers included the emerging time of flower, flower per cluster numbers, flower per cluster numbers, fruit per cluster numbers, fruit set, color of flower stalk, flower petal color and the color of the ovary. Morphological characters of fruit were the fruit physiologival maturity days, numbers of fruit per tree, fruit weight per plant, fruit length, fruit width, fruit flesh thick, thickness of rind, fruit hardness, seed length, seed width, fruit shape, fruit tip shape, color ripe fruit peel, seed coat color and flesh color. Organoleptic characters were determined by attractive color, distinctive fragrance, fruit flavor and prime of fruit size. The results presented that Cluster 1 consisted of 34 or 97,14% progeny that have distances close kinship with the parent and has a similarity, cluster 2 only AS 2 has a far distance kinship with-parents Arumanis-143 or by 2.86%. Regarding affective test, 61.53% of progenies similar to Arumanis-143

PENDAPATAN USAHATANI KACANG TANAH DI DESA TAGAWITI KECAMATAN ILE APE KABUPATEN LEMBATA Asnah Asnah; Virgilius Natal
BUANA SAINS Vol 9, No 1 (2009)
Publisher : Universitas Tribhuwana Tunggadewi

Peanut has been known and developed by farmers in Indonesia. Besides of easy and simple in technique to grow, peanut can cultivate in all type of soils, resistant of weather changes, and disease and insect attack, and has widely marketing prospect. This research is aimed to study cost, revenue, income, profit and efficiency of peanut farming. Location is purposively determine in Tagawiti village, Ile Ape district, Lembata area, by using random sampling, gradually based on land wide. Analysis data method is research result is tabulated and interpreted as equal as analysis result and goal

DIVERSITAS TUMBUHAN TAHAN KEKERINGAN DAN MANFAAT BIOMASANYA UNTUK REMEDIASI TANAH E. Arisoesilaningsih; Suyono Suyono; E. Handayanto Handayanto
BUANA SAINS Vol 6, No 2 (2006)
Publisher : Universitas Tribhuwana Tunggadewi

In support of healthy agriculture development to improve farmer’s prosperity status, soil remediation and land conservation efforts maybe relied on the use of biomass of local vegetation. Results of field exploration conducted at Brantas Watershed of East Java for the period of 2001-2002 indicated that there were at least 154 species of scrubs under growth, 47 species of agriculture-plantation crops, and 59 species of road shelter trees. The native undergrowth vegetation had undergone enormous seasonal variations. Biomass of predominance vegetation, e.g. Psophocarpus tetragonolobus, Phaseolus lunatus, Flemingia, Mimosa somian, Acacia villosa, Cassia mimosoides, Mucuna could potentially be used as organic matter sources to improve availability of nitrogen and phosphorus in soils. The amount of nitrogen and phosphorus contributed of the plant biomass significantly correlated with quality of the biomass

ANALISIS KESEIMBANGAN PENAWARAN DAN PERMINTAAN BERAS DI INDONESIA Eri Yusnita Arvianti; Rikawanto Rikawanto
BUANA SAINS Vol 10, No 1 (2010)
Publisher : Universitas Tribhuwana Tunggadewi

This study aims to analyze the stability of Indonesian rice supply and demand equilibrium system and to evaluate short-run and long-run impacts of price policy using Cobweb equilibrium model. The results show that in the short-run equilibrium of rice supply and demand deviates; however, in the long-run it is stable. These implication is price policy on agricultural inputs and output does not disturb Indonesian rice market. Therefore, the policy is still reasonable to be implemented

PEMANENAN AIR HUJAN PADA PERUMAHAN (REAL ESTATE) MELALUI PEMBANGUNAN DANAU DALAM RANGKA MENGURANGI EKSPLOITASI AIR TANAH DAN LIMPASAN AIR KE DRAINASE DI KOTA MALANG Galih Damar Pandulu; Esti Widodo
BUANA SAINS Vol 15, No 2 (2015)
Publisher : Universitas Tribhuwana Tunggadewi

Open space in the form of a lake to infiltration as well as a rainfall harvesting on housing (real estate) ranging from home and residential area to address the water needs are increasing along with the development of the growing city of Malang. The purpose of this study was to use excess of rainfall the rainy season an area of residential real estate that does not cause rainfall runoff into the environment outside the housing area. Research methods used to determine the topography of the study area and the proportion of land use in the form of a green open space and space awakened. Hydrological analysis includes frequency analysis of rainfall, rainfall intensity calculations certain return period, and discharge plans. The results of this study is the volume of water that can be accommodated on a residential scale. With existing discharge on Sukun Pondok Indah housing at 4,48 m3/sec in an open area and 41.59 m3/sec in the region woke up and discharge a total of 46.07 m3/sec. For a rainy day for 60 minutes to come by volume of 165,865.53 m3 of water. Housing Buring Permai for a rainy day for 60 minutes to come by water volume of 556,059.14 m3, Housing Permata Jingga for a rainy day for 60 minutes to come by water volume of 106,484.48 m3, Housing Ijen Nirvana for a rainy day for 60 minutes to come by water volume of 330,820.57 m3

PEMANFAATAN BIOCHAR ASAL CANGKANG KELAPA SAWIT SEBAGAI BAHAN PEMBAWA MIKROBA PEMANTAP AGREGAT L. P. Santi; D. H. Goenadi
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

The porous structure of biochar promotes ability to absorb soluble organic matter, gases, and inorganic nutrients. These characters are indeed highly suitable habitat for microbes to colonize, grow, and reproduce. A series of research was carried out aiming at to study the possibility of using biochar from palm kernel shell as bio-ameliorant carrier material for aggregate stabilizing microbes and determine the effectiveness of the newly-constructed bio-ameliorant in an Ultisol. Biochar was examined their physicochemical characteristics and the microbes population residing in it over time. Fourier-transformed infrared spectroscopy (FTIR) was used for obtaining vibrational spectra of the biochar that related to promote organo-mineral complexes of functional groups. The results indicate that biochar was suitable carrier material as it has highest total pore spaces and available water content in the newly-constructed bio-ameliorant compared to peat and compost. Microbial population obtained from the granular forms of bio-ameliorant was 107 cfu/g of the sample until 12 months shelve-life periods. Biochar showed intensive bands in the range of 3413-3400/cm corresponding to the stretching band of O-H (hydroxyl) and N-H amine). In the region 1170-950 /cm, bio-char exhibited the absorption characteristic at 1034/ cm corresponding to the existence of O-CH3 vibrations. The best vegetative growth performance of Bisma variety in Ultisol at Experiment Station Taman Bogo, Lampung, was shown by the application of 100% standard dosage of NPK conventional fertilizers in combination with the addition of 4.2 g bio-ameliorant/tree. Yield of dry grain of maize was higher (+15.7%) by application of 100% standard dosage and 2.1 g bio-ameliorant/tree (112 kg/ha) than that obtained by standard dosage of conventional fertilizer

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