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AGRITROPICA : Journal of Agricultural Sciences

jagritropica
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Published by Universitas Bengkulu

ISSN : 2621217X EISSN : 2621699X DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

AGRITROPICA is an international, double-blind peer-reviewed, open-access journal, published by Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian Universitas Bengkulu (Publishing House of Faculty of Agriculture, University of Bengkulu).

Arjuna Subject : -

Articles 101 Documents

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The Effect of Jajar Legowo Planting System on Ciherang Paddy Varieties Darwati Susilastuti; Aditiameri Aditiameri; Ubuh Buchori
AGRITROPICA : Journal of Agricultural Sciences Vol 1, No 1 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

Intensification on paddy is done one of them by setting the spacing. This study aims to examine the effect of spacing system on growth and paddy production. The research was conducted in Bojongmangu Village, Bekasi Regency, West Java Province. The study used an experimental method Randomized Completely Block Design (RCBD) with 1 factor that is planting system, namely tegel system 20 cm x 20 cm, tegel system 25 cm x 25 cm , jajar legowo 2:1 (25x12,5x50 ) cm, jajar legowo 4:1 full (25 x12,5x50 ) cm, jajar legowo 4:1 free space (25 x12,5x50 ) cm, and jajar legowo 6:1 (25x12,5x 50) cm. Each treatment is repeated 3 times. The results showed that jajar legowo planting system 2:1 gives the number of panicles per clump, number of grains per panicle, weight of 1000 grains and the average yield per hectare is highest, followed by jajar legowo 4:1 full planting systemKeywords: Jajar Legowo, Planting System

Agroindustrial Study of Banana Crackers and Salai Based on Income, Value Added and Break Even Point Lukman Hidayat; Hidayat Koto; Odi Andanu
AGRITROPICA : Journal of Agricultural Sciences Vol 1, No 1 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

The aim of this research was to analyze and calculates the income, added-value, and break even point of agroindustry that processing bananas into banana crackers and salai. Methods of data collection in this research were using observation and interviews. Data were analyzed using descriptive analysis, qualitative and quantitative, for the value-added, income, Break Even Point (BEP) and Revenue Cost ratio (R/C). The results shown that the average of value added per kilograms for Salai Rp. 4.371,37, sweet and salted banana crackers are Rp 2.944,00 and Rp 3.627,90. The income of salai, sweet and salted banana crackers per year’s are Rp. 29.566.251,-, Rp. 18.437.067, 96,- and Rp. 20.286.567,-. The average of BEP per month’s for salai is salai Rp. 1.415.636, sweet and salted banana crackers are Rp. 988.966, and Rp.781.352. The Average of BEP, units or packs per month’s for salai is 145 packs, sweet banana crackers were 124 packs and salted were 98 packs. R/C of Salai was 1.66, sweet banana crackers were 1.49 and salted was 1.71. Added-value of banana Salai Rp. 743, 47 more than salted banana crackers, amounted to 1.471,37 compared to sweet banana crackers. Banana salai income greater Rp. 9.279.684 than salted banana crackers, amounting to Rp. 11.129.183 compared to sweet banana crackers.Keywords: Value Added, Income, Banana crackers, Salai, Break Even Point

Influence of Inlet Position on the Amount of Pollutant Particles Trapped Along the Flow Path of Slow Sand Filter (SSF) Pipe Utilized for Filtering Swamp Water Sigit Mujiharjo; Syafnil Syafnil; Ilma Donna Astri Harahap
AGRITROPICA : Journal of Agricultural Sciences Vol 1, No 1 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

This study aims to explain the effect of inlet position of a Slow Sand Filter (SSF) Pipe on the amount of pollutant particles caught along the flow path in the SSF Pipe. The main equipment used is nine pieces of SSF Pipe, each has 4 inches in diameter and 50 cm in length with Pantai Panjang Bengkulu’ssand as the filter medium. The inlet positions tested were 90°, 45° and 0°; repeated three times and arranged in a completely randomized design (CRD). The observed variable is the weight of the captured pollutant in the SSF at the distance of 10cm, 20cm, 30cm, and 40cm from the inlet. Results of the research showed that the number of pollutant particles caught along the flow path in the SSF decreased following a linear model as the distance from the inlet was increased. The number of pollutant particles caught also decreased with the decrease of inlet position slope. The inlet position significantly affected the number of pollutant particles caught along the flow path; the position of 90° causes the highest amount of pollutants to be caught and significantly differs from that of the position of 45° and 0°. The position of 0° causes the least amount of pollutants to be captured that considered to be the best inlet position so far. It is important; however, to research whether inlet position of more than 180° could result in a much smaller amount of pollutant caught along the flow in the SSF Pipe.Keywords: SSFPipe, inlet position, particle caught in SSF, peat water filtration

Poverty Occurrency Probability on Oil Palm Farmer Households Nyayu Neti Arianti; Muhamad Harismanto; Agus Purwoko
AGRITROPICA : Journal of Agricultural Sciences Vol 1, No 1 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

The research was aimed at analyzing poverty level of non-plasma oil palm farmer households and determining factors that influence their poverty occurrence probability. This research was conducted by surveying ninety non-plasma oil palm farmer households in Mukomuko District. The poverty level was quantified method by comparing household income with the World Bank poverty line, i.e. US $ 2/capita/day. Households were categorized into poor if their income is less than US $ 2/capita/day or Rp 26,908.00/capita/day (with an exchange rate of Rp 13,454.00 per US $), vice versa. To determine factors affecting the probability of poverty occurrence, the binary logistic model was applied. The results showed that the average non-plasma farmer household income was Rp 39,484.00/capita/day. With the level of exchange rate applied in this research, it was found that forty percent households were below the poverty line. Land variable negative and significantly affects the probability of poverty occurrence while the family size was positive significant. Other factors including education, age, and the existence of other jobs had an insignificant effect.Keywords: probability, poverty, oil palm, household

Mineralization of Organic Residues, Dynamics of Microbial Biomass and Enzyme Activities in an Aridisol and Alfisol Soil under Rain-Fed Dry Farming Rehmat Ullah; Shehzada Munawar Mehdi; Khalid Saif Ullah Khan; Aftab Ahmed Sheikh; Endang Sulistyowati; Muhammad Saud
AGRITROPICA : Journal of Agricultural Sciences Vol 1, No 1 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

This study was planned with hypothesis to quantify mineralization rate of wheat and groundnut straw spiked in Kahuta and Guliana soil series. Results revealed that groundnut and wheat strawspiked soils had increased quantum of microbial biomass carbon (Cmic), biomass nitrogen (Nmic) and biomass phosphorous (Pmic) and activities of enzyme dehydrogenase (DHA) and alkaline phosphatase (APA) than un-amended soils. Initially, the contents of soil Cmic, Nmic, Pmic, DHA, and APA increased gradually during 2-14th days of incubation (DAI), again increased significantly at 28th DAI and then decreased slowly at 60th DAI in all treatments under both series. Hence, the addition of groundnut straw mineralized better than to other organic sources in both soil series. These results suggested that groundnut straw must be incorporated in soil one month before sowing of crop to enhance crop yield under rain-fed dry farming.Key words: Crop Residues, Microbial Biomass, Soil Enzymes, Aridisol, Alfisols

Soil Water Release Curves : Indicator to Suit Sustainable Cropping Scheme under Sloppy Rain-Fed Climatic Conditions of Pothowar Plateau of Punjab-Pakistan Rehmat Ullah; Shehzada Munawar Mehdi; Khalid Saif Ullah Khan; Aftab Ahmed Sheikh; Sigit Mujiharjo; Muhammad Saud
AGRITROPICA : Journal of Agricultural Sciences Vol 1, No 1 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

In arid environment, limitations of crop productivity could be improved by soil management practices like soil conservation measures, tillage and reducing slopes through terracing on different cropping patterns. These patterns include area as Wheat-Maize (WMCP) and Wheat-Fodder (WFCP) in Kahuta (high rainfall climatic area), Wheat-Millet-Fallow (WMFCP) and Wheat- Millet-Lentil (WMLCP) in Khairimurat (medium rainfall climatic area) and Wheat-Fallow (WFCP) and Fallow-Groundnut (FGCP) in Pindi Gheb (low rainfall climatic area). In areas that have more crop water requirements the yield of these crops has been affected when the drought prevails. Our results evidenced that more average soil water content (ASWC) was available in high to medium height terraces in WMCP and low to medium in WFCP of Kahuta area. ASWC remained more in high to medium height terraces under all cropping pattern of Khairimurat during September. ASWC remained more in low to medium height terraces under all cropping pattern of Pindi Gheb during September and December. Equidistantly, soil water release curve also indicated that medium rainfall sites had more plant water availability as compared to high and low rainfall sites. Yield relationship to plant water availability revealed significance for intrusion of modified cropping patterns rather than existing cropping patterns on sustained basis. Finally, our study suggests that cropping patterns of high and low rainfall areas should adjusted by growing low water requirement crops in summer seasons to cope the drought period for the sustainability of agriculture under rainfed climatic conditions. Keywords : cropping patterns, Pothowar Plateau, soil water contents, soil water release curve, sloppy lands

COMPARATIVE ADVANTAGE OF SIAMESE ORANGE (Citrus Nobilis) FARMING IN DISTRICT OF 50 KOTA, WEST SUMATERA M. Mustopa Romdhon; Apri Andani; Wahyu Fitri Nasari
AGRITROPICA : Journal of Agricultural Sciences Vol 1, No 2 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

Citrus Nobilis, known as Siamese orange, is one of the strategic fruits commodities for West Sumatera because of its higher productivity, approximately 6 - 9 tons per hectare. However, this commodity faces a fluctuated demand both in domestic and international markets. This is a serious problem due to its impact on farm income as well as in its competitive advantage. The aim of this study was to analyze the comparative advantage level of siamese orange farming. Survey of 84 siamese orange farmers selected using simple random sampling is conducted to get orange farming data. The comparative advantage level is measured using Policy Analysis Matrix (PAM) approach. The results show that siamaese orange farming has a high comparative advantage. This showed by a value of social profitability was more than zero and domestic resource cost ratio was less than one. This comparative advantage could be sustainable by domestic resources utilization efficiently. The improvement of skills and the use of modern siamaese orange farming technology are recommended.Keywords: Comparative advantage, siamese orange farming, PAM

EXPORT DEMAND FOR INDONESIA'S CRUDE PALM OIL (CPO) TO PAKISTAN: APPLICATION OF ERROR CORRECTION MODEL Lisbeth Girsang; Ketut Sukiyono; Putri Suci Asriani
AGRITROPICA : Journal of Agricultural Sciences Vol 1, No 2 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

Crude Palm Oil is one of the agricultural export commodities which become a contributor of foreign exchange which is exported to Pakistan continuously but fluctuated from the year 1973 to 2016. The purpose of this study consisted of two things; the first is to identify the factors that influence the demand for Indonesia's CPO exports to Pakistan. The second is to analyze the relationship between the production of CPO, the international and domestic price of CPO, and the exchange rate of Rupiah toward the volume of Indonesian CPO exports to Pakistan both in the long and in the short term of time. This study used time series data (1973-2016). The analytical method used in this study was Error correction model (ECM) to examine the correlation of variables: Indonesian CPO production, the international and domestic price of CPO, the international price of coconut oil, the international price of soybean oil, Pakistan’s GDP per capita, the inflation in Pakistan, and the exchange rate of Rupiah toward the export variable of Indonesian CPO to Pakistan by using software E-Views 6.0. Based on the results of this study, it is concluded that the factor affecting the short-term demand of Indonesia's CPO exports to Pakistan is the international price of CPO which has a significant negative correlation, while the factor affecting long-term demand is the exchange rate of Rupiah toward the US$ which has a significant positive correlation. There is no correlation between both Indonesian CPO production and domestic price of CPO toward Indonesia's CPO exports to Pakistan both in the short and in the long term.

ANALYSIS EFFICIENCY OF LUWAK COFFEE BUSINESS Niken Dwinora; Eko Sumartono; Bambang Sumantri
AGRITROPICA : Journal of Agricultural Sciences Vol 1, No 2 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

The purposes of this study were to 1) Calculate the amount of profit from the civet coffee processing business in Bandung Jaya Village, Kabawetan District, Kepahiang Regency. 2) To calculate the efficiency of the civet coffee business in Bandung Jaya Village, Kabawetan Subdistrict, Kepahiang Regency, with consideration that in Bandung jaya Village, Kabawetan Subdistrict, Kepahiang Regency has the most sought after sales of civet coffee. Sampling was done by using the Purposive Method. Because the researchers intentionally took the data in the Luwak Coffee business stamp well in Bandung Jaya Village, Kabawetan District, Kepahiang District, the data analysis used the R / C ratio and B / C methods. The results showed that the efficiency analysis of R / C Ratio showed that Luwak coffee business was very efficient because revenues were greater than the total production costs. The results of the B / C Ratio analysis showed that these business ws not feasible because income is lower than the total production cost.

THE GROWTH OF WHITE CORN PLANT WITH SEVERAL PHOSPOR FERTILIZERS AND MYCORRHIZA APPLICATION IN INCEPTISOL AT LUMBAN LOBU VILLAGE, BONATUA LUNASI SUBDISTRICT TOBA SAMOSIR DISTRICT- SUMATERA UTARA Andrew Hans Prima; Bintang Bintang; Hardy Guchi; Benny Hidayat
AGRITROPICA : Journal of Agricultural Sciences Vol 1, No 2 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

The criteria of P available on Inceptisol soil are low, so P fertilizer and mycorrhiza application is needed to increase P available on the soil. This research aim was to determine the growth of white corn plants by various P fertilizers and mycorrhiza application in Inceptisol soil at Lumban Lobu Village, Bonatua Lunasi Subdistrict, Toba Samosir District Sumatera Utara. The method used was Factorial Randomized Block Design with two factors and two repetitions. The first factor is the source of P consists of 7 treatments: P0 (control); P1 (TSP fertilizer); P2 (phosphate rock fertilizer); P3 (chicken manure); P4 (cow manure); P5 (guano fertilizer) and P6 (rice husk biochar) and the second factor is mycorrhiza with two treatments: M0 (0 g / plot) and M1 (30g / plot). Parameters observed were plant height, organic C content, soil H2O pH and degree of mycorrhiza infection. The research results showed that the application of P sources did not significantly increase the growth of white corn plants. The application of mycorrhiza significantly increased the degree of root infection and the interaction of P sources and mycorrhiza significantly increased the degree of root infection.Keywords : P Sources, Mycorrhiza, Inceptisol, White Corn.

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