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Sumatera utara
INDONESIA
Indonesian Journal of Agricultural Research
Published by Universitas Sumatera Utara
ISSN : 26155842     EISSN : 26155842     DOI : -
Core Subject : Economy, Health, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Social Sciences Veterinary
Indonesian Journal of Agricultural Research (InJAR) is a peer-reviewed quarterly journal published by TALENTA (Universitas Sumatera Utara's Journals Publisher) and managed by Faculty of Agriculture, Universitas Sumatera Utara. It is based on DIKTI accreditation standard and covers all aspects of agricultural researches including Animal Science and Fisheries, Agribusiness, Agrotechnology and Agricultural Technology. All manuscripts are double-blind refereed before acceptance. InJAR is published in March, July, and November.
Arjuna Subject : -
Articles 179 Documents
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Effect of Soil Texture on the Productivity of Two Shallot Varieties Razali; Nasution, Zulkifli; Rahmawaty; Hanum, Chairani
Indonesian Journal of Agricultural Research Vol. 6 No. 1 (2023): InJAR, Vol. 6, No. 1, March 2023
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i01.8217

Abstract

The Lake Toba Catchment Area (LTCA) has long been known as a producer of shallots in North Sumatra. The Samosir variety is the mainstay local variety of the farmers. Due to the lack of quality seeds and disease attacks on the Samosir variety, farmers began to cultivate the Bima Brebes variety. This study aims to prove the difference in productivity of shallot varieties Samosir and Bima Brebes cultivated in the LTCA region by considering soil texture as a factor affecting productivity. This study was conducted in 6 shallot producing districts included in the LTCA. For analysis, 30 samples were selected based on the level of shallot productivity, with details of 10 low category production (< 4.5 tons/ha), 10 medium category production (4.5-7.5 tons/ha), and 10 high category production (> 7.5 tons/ha), along with the results of soil texture analysis. Correlation analysis was conducted to find the type of soil fraction that influenced productivity. ANCOVA to analyze the relationship between soil fraction and shallot productivity in each variety and analyze the difference in the productivity of Samosir and Bima Brebes shallots. The results showed that the sand fraction had an effect on shallot productivity in LTCA. The shallot cultivation land in LTCA has a sand fraction of 69-76% (sandy loam texture), where the greater the percentage of sand fraction, the higher the productivity of both shallot varieties. There was no difference in the productivity of Samosir and Bima Brebes shallots varieties. Bima Brebes variety can be a substitute seed for shallot cultivation in LTCA.
Analysis of Biosecurity Application in Broiler Chicken Farms in North Sumatra Tafsin, Ma’ruf; Hanafi, Nevy Diana; Sadeli, Achmad; Farida, Tuty Elvi
Indonesian Journal of Agricultural Research Vol. 6 No. 1 (2023): InJAR, Vol. 6, No. 1, March 2023
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i01.8762

Abstract

Biosecurity is very important in broiler chicken farming. The right biosecurity application will create optimal performance. This research was conducted in three districts of North Sumatra province, namely Deli Serdang, Serdang Bedagai and Simalungun with purposive sampling methods. Number of samples used by 104 respondents. This research was conducted to find out the level of application of biosecurity and health conditions in the maintenance of modern broiler chickens. The data used in the study used primary data obtained from filling out questionnaires and discussions with farmers. The parameters used use the Likert scale with integers of 1, 2, 3, 4, and 5 for each answer. There are three categories in the application of biosecurity, namely pre of entry, point of entry and post of entry. Disease conditions that often appear during the maintenance of broiler chickens related to the performance obtained by respondents. The results of the statistical analysis illustrate that the level of application of pre-entry biosecurity (P<0.05) describes 67% of the significant results of 6 questions, the point of entry (P<0.05) shows 100% insignificant results from 6 questions and post of entry (P<0.05) shows 43% significant results from 7 questions on closed house and open house systems. The results of data obtained from cases of diseases that are often a problem in broiler chickens more cases of enteritis (digestive) disease by 27.9% and CRD by 25% of the total respondents.
Grow-out of Oreochromis niloticus (Linnaeus, 1758) fish (Perciformes, Cichlidae) on Local Feed in an Above-ground Tank Culture System in Kinshasa, Democratic Republic of Congo Kiamfu, Victor Pwema; Luila, Josette Mbaki; Kumutima, Berthe Kazaba; Matondo, Alex Mayoni; Nzege, Christian Yaga; Lusasi Swana, Willy
Indonesian Journal of Agricultural Research Vol. 6 No. 1 (2023): InJAR, Vol. 6, No. 1, March 2023
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i2.9495

Abstract

 Acquiring land that meets the required standards for lowland ponds is becoming an increasing problem in the city of Kinshasa in the Democratic Republic of Congo, and fish farming in above-ground concrete tanks is emerging as an alternative. The objective of this study was to follow the evolution of pre-growth of Oreochromis niloticus Linnaeus, 1758 in an above-ground concrete tank culture system using feed based on local agricultural by-products available in Kinshasa. A total of 198 fries were distributed in 3 tanks and fed three times a day. The experiments were conducted for 60 days between August and November 2021. The results obtained indicate a better survival rate (T1 = 75.75±4.32%; T2 = 60.6±9.76% and T3 = 83.33±4.96%). Feed T1 (mean weight = 33.15±2.78 g) and T2 (28.44±3.76 g) had a positive impact on fish weight growth. The cost of producing one kilogram of a feed ration varied depending on the ingredients used. It cost 2,843 FC to develop the T1 feed, 951 FC to produce the T2 feed and 5.000 FC to afford the T3 commercial feed sold in Kinshasa. Ration T2 is the one that gave a better compromise of price and quality by promoting good fish growth at a lower cost (1,692 Congolese Francs) than the other two feeds. These observations sufficiently show that during the experiment, the experimental structure (concrete tank) did not have negative effects on the zootechnical performance of the fry of the fish species studied. The economic aspect of the use of feed rations by fry showed the merits of rearing fish using local agricultural by-products rather than commercial feed. This study showed the merits of setting up an above-ground concrete tank fish farm to overcome the difficulty of acquiring land to meet fish farming requirements.
Effects of Harvest Time and Storage Form on Insect Population and Damage of Maize Asare, Sharon G.; Kwarteng, S. A.; Owusu, B. S.; Baidoo, P. K.
Indonesian Journal of Agricultural Research Vol. 6 No. 1 (2023): InJAR, Vol. 6, No. 1, March 2023
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i2.11203

Abstract

The aim of this study was to determine the effects of harvest time and storage form on population levels of insect pests and their damage on stored maize. Maize was cultivated on a total land area of 19 x 23m2 during the major season (April to August 2020) and minor season (September to December 2020). Maize was harvested at three stages; early harvest, mid harvest and late harvest. Harvested maize was stored in three ways; husked, de-husked and shelled. Analysis of variance (ANOVA) was applied to the data through Sisvar version 5.6. Insect pests that were sampled during the study were Sitophilus zeamais, Cathartus quadricollis, Carpophilus dimidiatus and Tribolium castaneum. Carpophilus dimidiatus were sampled from treatments during the major season whereas Tribolium castaneum was sampled during the minor season. Sitophilus zeamais and Cathartus quadricollis were sampled in both seasons.  In the major season, late harvest shelled maize (LHS) recorded 689% more S. zeamais numbers as compared to early harvest husked maize (EHH). Mid-harvest husked maize (MHH) had 307% less number of S. zeamais compared to LHS in the minor season. Late-harvest shelled maize (LHS) had the highest percentage insect damaged kernels (86.94%) in the major season.
Analysis of Indonesian Palm Oil Competitiveness in the Main Export Destination Countries Maulana, Fahrul Rozi; Sukiyono, Ketut; Nusril; Sriyoto
Indonesian Journal of Agricultural Research Vol. 6 No. 2 (2023): InJAR, Vol. 6, No. 2, July 2023
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i2.11420

Abstract

Indonesia is the largest palm oil producing country in the world with a production volume of nearly 43 million tons/year. The high production of Indonesian palm oil is a new opportunity that needs to be developed in this globalization era to compete with its main competitors. Therefore, an analysis is needed in order to discover the competitiveness of Indonesian palm oil commodity in the main export destination countries. Export is an activity conducted by a country by selling its products abroad using the payment system, quality, quantity, and other sales terms that have been agreed upon by the exporting and importing countries. This study aims to analyze the level of competitiveness of Indonesian palm oil exports in the Asian and European markets represented by six countries: India, Malaysia, Singapore, the Netherlands, Italy, and Spain. The analytical method used is Revealed Competitive Advantage (RCA) to see the comparative advantage and to determine whether the performance of Indonesian palm oil products in the main export destination countries increases or decreases by using the Revealed Comparative Advantage Index (RCA Index) calculation. The data used are secondary data in the form of time series during the period of 2014 to 2020 and cross sections of the main export destination countries of Indonesian palm oil. The results of the calculation of the RCA value show that in the period 2014 to 2020 the RCA value of Indonesian palm oil products in the main export destination countries is higher than one (> 1). Thus, Indonesian palm oil products have a comparative advantage in the main exports of destination countries from year to year. In contrast to the RCA index calculation results in this study, Indonesian palm oil products are still able to show a positive trend every year. This is proven by certain years’ RCA index of the main export destination countries: India, Malaysia, Singapore, the Netherlands, Italy, and Spain is still less than one (<1) even though the average RCA index value for each country is higher than one (>1). Hence, it can be said that the performance of Indonesian palm oil products increases or decreases frequently every year in each of the main export destination countries.
Design and Implementation of a Compact Automated Spirulina Cultivation System for Households Esmaeili, Seyed Ebrahim; AlRasheedi, Ahmed; AlJarrah, Ahmed; Marzouk, Mohamed H; AlBloushi, Fatmah Y
Indonesian Journal of Agricultural Research Vol. 6 No. 1 (2023): InJAR, Vol. 6, No. 1, March 2023
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i01.11746

Abstract

Spirulina is considered to be the most nutritious whole food source in nature. It is promoted as a dietary supplement and an active ingredient in functional foods. Factors such as conflicts, supply chain disruptions, and economic fallout are driving food prices to unprecedented levels. Low- and middle-income populations are affected by these rising costs. The design and implementation of a compact Spirulina cultivation system to be used in the household is presented in this paper. The system contains light, temperature, pH, and turbidity sensors. All sensors are connected to microcontrollers which activate a heater, air pump, mixing pump, pool fall pump, and two LEDs according to the readings received to ensure proper and continuous growth of Spirulina. The proposed system is user-friendly, economical, and can be easily stored and operated at homes to stimulate and monitor the growth of Spirulina. The primary objective of the proposed compact cultivation system is to furnish the necessary tools for generating a nutritionally valuable food source on a smaller scale, specifically within households, at a relatively affordable cost.
The Effect of Manalagi Apple Peel Addition on the Quality of Celery Herbal Tea Sinaga, Hotnida; Siregar, Putri Aminah; Yusraini, Era; Naibaho, Charolyne Antonia
Indonesian Journal of Agricultural Research Vol. 6 No. 3 (2023): InJAR, Vol. 6, No. 3, November 2023
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i3.10820

Abstract

Herbal tea is a refreshing drink made from dried leaves, flowers, seeds, fruit, wood, and other plants that have health benefits. The purpose of this study was to determine the ratio effect of celery with manalagi apple peel and drying time, to produce the best celery herbal tea. This study was designed using a factorial completely randomized design with 2 factors: the ratio of celery with apple peel [100:0; 75:25; 50:50; 25:75; 0:100] and drying time [2, 3, 4 hours] at 50 oC. The parameters analysed were moisture content, vitamin C content, total phenol, color, and organoleptic values (aroma, and general acceptance). The parameter observed for the best quality samples was antioxidant content. The results showed that the ratio of celery with manalagi apple peel had a highly significant effect on color oHue, aroma, and general acceptance of organoleptic. The drying time of teas had a highly significant effect on vitamin C content. The interaction of the ratio had a significant effect on the color value (L) and a highly significant effect on total phenol. The results showed that the first and the second factors had a highly significant effect on moisture content, total phenol, and color value (L). The choice of drying method can influence the final quality of the tea, making it important to select the appropriate technique.
Papaya Peel Extract and Citric Acid Addition on the Quality of Guava Jelly Kosasih, Sofia Winnie; Karo-Karo, Terip; Romauli, Nauas Domu Marihot
Indonesian Journal of Agricultural Research Vol. 6 No. 3 (2023): InJAR, Vol. 6, No. 3, November 2023
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i3.11367

Abstract

The aim of this study was to determine the quality of guava jelly after the addition of papaya peel extract and citric acid. The study used a two-factor, randomized factorial design. The first factor was the addition of papaya peel extract (P): (2%;4%;6%;8%), while the second was the addition of citric acid (A): (1%;1,5%;2%;2,5%). The parameters analyzed were moisture content, ash content, total soluble solids, vitamin C content, crude fiber content, degree of acidity (pH), and total acid. According to the results, the addition of papaya peel extract had a highly significant effect on the water content, crude fiber content, degree of acidity, total acid, and had a differ significant effect on ash content and total dissolved solid. The addition of citric acid also had a highly significant effect on the total dissolved solid, the content of Vitamin C, degree of acidity, the organoleptic test of taste, and had a differ significant effect on water content and total acid. The interaction between the addition of papaya peel extract and citric acid had a highly significant effect on the degree of acidity. Guava jelly with 8% papaya peel extract and 2% citric acid had the optimum quality characteristics.
Assessment of the Farmer Field Schools Activities as Strategy to Enhance Capacity Building of Smallholder Rural Cocoa Farmers in Kwara State, Nigeria Fatai, K.; Abdullahi, H. A.; Oba, A. I.; Bijani, Masoud
Indonesian Journal of Agricultural Research Vol. 7 No. 1 (2024): InJAR, Vol. 7, No. 1, March 2024
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v7i1.11439

Abstract

The study assessed the Farmer Field Schools (FFS) activities as a strategy to enhance capacity building of rural smallholder cocoa farmers in Kwara State, Nigeria. A descriptive survey to enhance the capacity to conduct the research. A purposive sampling procedure was used to select 160 smallholder rural cocoa farmers who participated in the FFS activities in Kwara State. A structured interview schedule was used to collect the data from the respondents. Data were gathered on the socio-economic characteristics of smallholder cocoa farmers and the skills provided by FFS to smallholder cocoa farmers. Data was analyzed using mean, frequency counts, percentages, and chi-square at 0.05 level of significance. The result revealed that 91.3% were male, while 8.7% were female. The result showed that all the skills needed were provided by FFS. The results showed that FFS activities had a significant relationship with the FFS skills provided and the training needs of the rural smallholder cocoa farmers with a p-value of 0.001 being < 0.05. The findings concluded that farmer field school activities had a positive relationship between the skills provided and the training needs of cocoa farmers and this is because the skills provided by FFS are in line with the training needs of cocoa farmers. The study recommends that the Kwara State Ministry of Agriculture through the FFS should continue to serve as a training base that involves more farmers in the program and encourage extension service delivery to encourage capacity building and increase productivity.
Comparison of Carcass Percentage Among Four Duck Breeds under Traditional Rearing Conditions Hafid, Harapin
Indonesian Journal of Agricultural Research Vol. 7 No. 1 (2024): InJAR, Vol. 7, No. 1, March 2024
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v7i1.11478

Abstract

The research aims to determine the extent of differences in the carcass composition of four types of ducks using semi-intensive cultivation. A total of 16 ducks aged 3 months were used as experimental units. A completely randomized design with 4 treatments and 4 replications was the research design. The results showed that ducks of the same age, namely: Alabio ducks, Peking ducks, Mojosari ducks, and Manila ducks, showed very significant differences (P<0.01) in the variables of slaughter weight, carcass percentage, thigh and back percentage. However, there was no significant difference (P>0.05) in the percentage of chest, wings, and neck. It was concluded that the live weight, carcass percentage, and carcass parts of Manila ducks were higher than those of Alabio, Peking, and Mojosari ducks. Meanwhile, Alabio ducks are taller than Peking ducks and Mojosari ducks.

Page 13 of 18 | Total Record : 179

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