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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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LIMPASAN PERMUKAAN DAN EROSI TANAH SETELAH SEPULUH TAHUN MENGGUNAKAN SISTEM TANAMAN LORONG Titiek Islami; W.H. Utomo
BUANA SAINS Vol 6, No 1 (2006)
Publisher : Universitas Tribhuwana Tunggadewi

Field experiments had been carried out to study the effect of 10 years alley cropping system on surface run off and soil erosion. Experiments were carried out on Alfisols at Jatikerto, Malang and on Vertisols at Ngrimbi, Jombang, East Java. The results showed that after 10 years planting tree crops and or grass as hedgerow in between food crops very efeective to decrease surface run off and soil erosion. After 10 years of planting the tree crops, the alley cropping system could decrease surface run off and soil erosion more than 40% (compared to that of the non alley cropping system) At the same time, soil erosion decrease up to 60% of the non alley treatment. The use grass as hedgerow crops yielded a better result, in term of surface run off and soil erosion. A comparison between tree species, Flemingia and Gliricidia are better than Leucaena

PENGEMBANGAN BUDAYA KEWIRAUSAHAAN AGRIBISNIS DI PERGURUAN TINGGI Aldon Sinaga; Wahyu Mushollaeni; Akhadyah Afrillia
BUANA SAINS Vol 9, No 1 (2009)
Publisher : Universitas Tribhuwana Tunggadewi

Opportunities to develop the productive sector in the agricultural sector in eastern Indonesia is one of the drivers of entrepreneurship in the provision of student materials from eastern Indonesia, which aims for the prosperity and welfare of local communities, which are the responsibility of every scholar who came from Eastern Indonesia. In UNITRI curriculum development plan, entrepreneurship as a compulsory subject more specific to the field and science groups. This subject will be taken by all students of science group and integrated with other courses in their curriculum courses in UNITRI. UNITRI trying to take advantage of development opportunities through programs Entrepreneurship Development from DIKTI, with the hope will be able to increase the effectiveness of achieving the vision and mission UNITRI. The purpose of the activity field Agribusiness Entrepreneurship Lecture at the Tribhuwana Tunggadewi University were providing insights into the concept of entrepreneurship and entrepreneurs, how to start entrepreneurship and entrepreneurial finance, the role of entrepreneurship, entrepreneurial process, the identification of various types and how to start self-employment, entrepreneurial opportunities for potential areas of Agribusiness and productive, and the motivation and courage to jump on the student Agribusiness Entrepreneurial activity. Learning methods used in the Agribusiness Entrepreneurship Lecture activities, includes some combination of learning methods are lecture, discussion, Project Based Learning, Student Centered Learning, and comparison / Role Play, and Initiation

SERAPAN NITROGEN, FOSFOR DAN KALIUM BOKASHI TINJA OLEH TANAMAN JAGUNG Widowati Widowati; Sutoyo Sutoyo
BUANA SAINS Vol 7, No 1 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

A glasshouse experiment was conducted to elucidate the effect of feces bokhasi (FB) on uptake of N, P and K by maize grown on an Inceptisol. Nine treatments comprising eight FB rates of 2,5, 5, 7,5, 12,5, 15, 17,5 and, 20 t FB/ha and one control (no added FB) were arranged in a completely randomized design with three replicates. Results of the experiment showed that application of FB up to 10 t/ha increased plant NPK contents. However, applications of more than 10 FB/ha reduced N and K uptake by maize, while P uptake was kept steady. The highest uptake of N, P and K was observed for application of 10 t/ha. i.e. 121.86 , 13.21, and 68.27 mg/kg respectively. Application of various rates of FB did not significantly (P = 5%) affect uptake of N, P and K by plant, but significantly affected K uptake. The average N loss from all treatments ranged from 14.4 to 15,5 mg/kg; the average loss of P from all treatment was about 2,2 mg/kg, and the average loss of K from all treatments ranged from 2,1 to 2,2 mg/kg. The lowest NPK recovery was observed for 20 t FB/ha treatment, i.e. 0,64%, 4,51%, and 18,18%, respectively, whereas the highest NPK recovery was observed for 10 t FB/ha treatment, i.e. 20,43%, 27,16%, and 67,90%, respectively

ALOKASI TENAGA KERJA PADA USAHATANI SUTERA ALAM DI DESA KRENCENG KABUPATEN KEDIRI Aldon Sinaga; Elok Nurhiasati; Asnah Asnah; Rikawanto EM
BUANA SAINS Vol 10, No 1 (2010)
Publisher : Universitas Tribhuwana Tunggadewi

This resarch aims to analyze : a) the allocations of household labor on natural silk farm, b) the contribution of labors allocation of natural silk farm on the absorption of household labors, c) factors effecting labors allocation on natural silk farm. This research conducted at the Krenceng Village, Kediri Regency used survey methode. The data analyse used descriptive statistic and multiple regression. The results of this research shows that : a) total labor used on natural silk farm activities as much as 287,70 MDE/year, b) the contribution of natural silk farm activities on household labor absorption more than 28 percent of potential household labor force, c) labor allocation on natural silk farm influenced by planting area of murbei, number of eggs, silk farm frequention and number of household members

PENGARUH PUPUK ORGANIK CAIR PADA POLA KUNJUNGAN SERANGGA DI PERKEBUNAN APEL (Malussylvestris Mill.) PASCA ERUPSIGUNUNG KELUD Habibi Indra Muhammad; Amin Setyo Leksono; Nia Kurniawan; Bagyo Yanuwiadi
BUANA SAINS Vol 16, No 1 (2016)
Publisher : Universitas Tribhuwana Tunggadewi

Negative impacts of dust-mount volcanic eruption to the production and damages of the surrounding plantation have been understood. However, its environmentally friendly mitigation effort has been poorly investigated. Application of organic fertilizer has been reported to be able to recover crop’s ecosystem balance, especially through insect’s community balance. Study on the effect of organic fertilizer application on insect visitation pattern at apple plantation following dust volcanic eruption of Mount Kelud was assessed at Junggo village, Malang regency, from January to April 2015. Treatments consisted of liquid organic fertilizer (LOF) at the rate of 2 cc/lt applied at blooming and fruiting seasons (LOF flower and LOF fruit) and controls. Sample size was 6plants. Liquid orgamicfertilizer were applied 10 times; five times during flowering time and the remaining five at fruiting time. Observation was made four days after application at 4 period intervals, namely, 0.7.00-08.00; 09.00-10.00; 12.00-13.00 and 15.00-16.00. Parametersobserved include insect diversity, abundance,and composition. Results showed that application of Liquid Organic Fertilizer (LOF) significantly affected the insect visitation pattern. LOF at flowering time showed the highest diversity index. Insect diversity consisted of 14 families. The highest composition shown by the pollinator and among the pollinators, the Tabanidae was the most importance. These finding signify that Liquid Organic Fertilizer (LOF) has been proven as one of the potential mitigation effort that environmentally friendly

KEMAMPUAN BIOCHAR MEMEGANG AIR PADA TANAH BERTEKSTUR PASIR S. Sutono; N. L. Nurida
BUANA SAINS Vol 12, No 1 (2012): Edisi Khusus
Publisher : Universitas Tribhuwana Tunggadewi

Traditionally biochar is already used for different kinds of people activities such for cooking, cloth ironing. However, utilization of biochar in agriculture is limited only for pot media. Application of biochar in agriculture land is a carbon conservation technology due the long standing capacity in the soil. A laboratory study was conducted at soil physics laboratory of Soil Research Institute, Bogor using sandy soil. A factorial experiment with three factors was applied. The first factor was soil consisting of 20, 30, 40, 50, 60 and 92 percent of sand. The Second factor was three kinds of biochar: rice husk, palm oil, and cocoa skin fruit. The third factor was concentrations of biochar: 0, 10, 20 and 40 t/ha. Water holding capacity was measured by pF ceramic plate (pF1, pF 2, pF 2.54 and pF 4.2). The results indicated that biochar made from cacao skin fruit gave high pore aeration and increased number of water availability followed by made rice husk biochar and palm oil biochar

EFEK PENAMBAHAN EKSTRAK KASAR ENZIM BROMELIN DALAM PAKAN TERHADAP PENAMPILAN PRODUKSI E. Fitasari; Soenardi Soenardi
BUANA SAINS Vol 12, No 1 (2012)
Publisher : Universitas Tribhuwana Tunggadewi

Abstract The research about bromeline crude extract was conducted to determine the giving of enzyme on broiler production performance (consumption, weight gain, feed convertion ratio and income over feed cost). This research used 5 treatments: P0 (control), P1 (bromeline crude extract 2% w/w), P2 (bromeline crude extract 4% w/w), P3 (bromeline crude extrac 6%), and P4 (bromeline crude extrac 8%). This study was carried out in Randomized Complete Design. The significant influence, was be tested with Least Significant Difference Test. The result showed that the treatments didt’n gave significant difference (p>0.05) on consumption, weight gain, feed convertion ratio and very significant effect (p

POLA WILLINGNES TO PAY (WTP) KOMODITI TAHU DAN DAGING MASYARAKAT KOTA MALANG Umi Rofiatin; Taufik Iskandar
BUANA SAINS Vol 17, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

Soybeans and meat are the most strategic food commodities and are very risky if it is fully entrusted to the mechanism of the free market. The point is, soy and meat commodities have a very central role in national food policy channels. One of the agricultural ministry targets for 2010 - 2014 is to increase food diversification, especially to reduce rice and wheat consumption. During 2010 - 2014, rice consumption is targeted to fall by 1.5% per year and balanced by increasing in consumption of tubers, animal foods, fruits and vegetables. On the other side, it is also strived to achieve a diverse, nutritious, balanced and safe food consumption pattern as reflected by the increase of Expected Food Pattern (PPH) scores from 86.4 in 2010 to 93.3 in 2014. This study aimed to determine the characteristics of the community in taking decision to buy food products from both tofu and meat sources and to analyze the key factors of consumer’s willingness to buy tofu and meat by using multiple linear regression methods. The results of the study showedthat the characteristics of respondents in the research that affected the gender of respondents were women because married women were the decision makers in terms of household needs. The factors that affected the willingness of consumers to pay tofu were: taste, price and size. Meanwhile, thefactors that affected consumers' willingness to pay for meat were price and shape.

KAJIAN EKONOMI USAHATANI KENTANG DI KECAMATAN SUKAPURA KABUPATEN PROBOLINGGO Ana Arifatus Sa’diyah; Rikawanto Eko Muljawan
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Probolinggo Regency especially Sukapura is one of potato production center area since this area is very suitable for potato plants. Some problems are always faced by the farmers in that area was restrictiveness of capital such as wide of land, seeds, fertilizer, medicines, and employees. This research aimed to find out the productivity of potato, factors affecting potato production, income of farmer business entity of potato, and efficiency of product ion cost at farmer business entity of potato. The research method used was descriptive and correlation method, by determining the area purposively (purposive method). The method used to take the example was Disproportionate Stratified Random Sampling Method by stratum of area’s height. The data collection was done by using primary and secondary data. The data analysis used covered: (1) analysis of productivity index to know the productivity of potato, (2) analysis of production function of Cobb-Douglas to know the factors affecting the potato productivity, (3) analysis of income to know the profit of potato farmers, and (4) analysis of R/C ratio to know the efficiency of production cost at farmer business entity of potato. The research result done showed that: (1) the potato productivity was 12,797.78 kg/ha; (2) the potato productivity was affected by the wide of land, seeds, fertilizer, medicines, employees, and height of location, (3) the farmer business entity of potato was profitable, and (4) the use of production cost at farmer business entity of potato was efficient (R/C = 1,72)

EFEKTIFITAS BEBERAPA JENIS BAHAN ORGANIK TERHADAP PENINGKATAN KESUBURAN TANAH DAN HASIL PADI Ricky Indri Hapsari; Riyanto Djoko
BUANA SAINS Vol 14, No 1 (2014)
Publisher : Universitas Tribhuwana Tunggadewi

Rice continuous planting without additional biomass application decreases soil fertility and nutrient stability in the soil. Different kind of legumes crops in the tropic is one of possibility can used an organic fertilizer. The aims of this study was to evaluate legume crops as organic matter, and kind of legume crop potentially has high nutrient in the soil after rice harvest and be continue used by following crops. To evaluate additional organic matters to increased yield of rice. The study was conducted from July to November 2013 at Amadanom village, sub district of Dampit and Malang district. Split plot design was used with three (3) replication and two (2) factor. Main plot consist of N0 (no addition an organic fertilizer), N1 (N an organic fertilizer 30 kg/ha), N2 (N an organic fertilizer 60 kg/ha). Sub plot additional organic matters 20 t/ha consist of : B1 (biomass of Crotalaria juncea L.), B2 (biomass of Sesbania rostrata) and B3 (biomass of Tithonia diversifolia). The result showed that additional biomass Sesbania rostrata and N an organic fertilizer 30 kg/ha increased yield by 104,98%. The high contribution on nutrient content in the soil and application of biomass Sesbania rostrata. It was concluded that organic matter of Sesbania rostrata was effective as organic fertilizer to increased soil fertility and rice yield

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