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INDONESIA
Andalasian International Journal of Agricultural and Natural Sciences
Published by Universitas Andalas
ISSN : 27766500     EISSN : 27457885     DOI : -
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering
is a peer-reviewed, open-access journal that publishes original research articles, review articles, as well as short communication in all areas of basic and applied natural sciences. The submitted manuscript should have relevance with basic and applied natural science. Andalasian Internasional Journal of Agricultural and Natural Sciences covers the following topics. · Applied biology · Applied chemistry · Applied physic · Agriculture Sciences · Agroindustry · Animal Science · Food science and technology · Environmental · Health and medicine · Agroindustry
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 66 Documents
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Effect of Glutamic Acid Foliar Application Concentrations on Growth and Yield Traits of Two Genotypes of Roselle (Hibiscus Sabdariffa L.) Yaseen Obaid Noori Ahmed Sharif; Satar Abid Khaleefh; Sura Hameed Bahar AL-Janabi; Hiba jomaa Alfahdawi; Tariq Raad Thaer Al-Mafarji
Andalasian International Journal of Agriculture and Natural Sciences (AIJANS) Vol. 6 No. 2 (2025)
Publisher : Lembaga Penelitian dan Pengabdian, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijans.v6.i2.52-60.2025

Abstract

A field experiment was conducted during the summer season of 2024 in the fields of a farmer in the Koldara area, affiliated with Altun Kupri sub-district in Dibis district, located in northern Kirkuk Governorate (35o44'45.5"E, 44°07'21.5"N), approximately 23 km north of Kirkuk city. The objective was to evaluate the response of two roselle genotypes—Local Egyptian and Red Heet—to four foliar application concentrations of glutamic acid (0, 50, 100, and 150 mg L-1) on growth and yield traits. Statistical analysis showed the superiority of the Red Heet genotype in all growth and yield parameters. Foliar application of glutamic acid at 150 mg L-1 significantly enhanced most studied traits. The interaction of Red Heet with 150 mg L-1 gave the best results in terms of number of branches (32.95 branches plant-1), dry weight of sepals leaves (73.28 g), number of capsules (129.95 capsules plant-1), dry weight of capsules (256.77 g), number of seeds per capsule (25.77), and seed yield (949.11 kg ha-1).
Response of Two Cultivars of Faba Bean (Vicia Faba L.) to Different Levels of Phosphorus Fertilizer Aznor Nazim Saleh; Saja Baker Hassan; Ibrahim Ali Ameen
Andalasian International Journal of Agriculture and Natural Sciences (AIJANS) Vol. 6 No. 1 (2025)
Publisher : Lembaga Penelitian dan Pengabdian, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijans.v6.i1.44-49.2025

Abstract

A field experiment was conducted during the winter season (2023–2024) in a private field located in Kirkuk Governorate. The study was implemented as a factorial experiment using a Randomized Complete Block Design (RCBD) with three replications. The results and differences among means were analyzed using Duncan’s Multiple Range Test (DMRT) at a 5% probability level. The experiment aimed to evaluate the response of two faba bean (Vicia faba L.) cultivars (Spanish and local) to five phosphorus fertilizer levels (0, 25, 50, 75, and 100 kg ha-1), applied in two splits. The results showed that the fifth phosphorus level (P5) significantly improved plant height (58.667 cm plant-1), number of branches (6.833 branches plant-1), number of leaflets (40.89 leaflets plant-1), number of flowers (30.33 flowers plant-1), number of pods (27.33 pods plant-1), and single plant yield (188.83 g plant-1). The fourth phosphorus level (P4) also led to significant improvement in all studied traits, with values of plant height (58.667 cm plant-1), number of branches (6.166 branches plant-1), number of leaflets (41.071 leaflets plant-1), number of flowers (31.33 flowers plant-1), number of pods (28.33 pods plant-1), and single plant yield (190.00 g plant-1). No significant differences were observed between the two cultivars. However, significant interactions were found, particularly for the combination A1P5 (Spanish cultivar x fifth phosphorus level), which excelled in plant height (63.00 cm plant-1), number of branches (7.000 branches plant-1), and number of leaflets (42.35 leaflets plant-1). Additionally, the interaction A2P4 (local cultivar x fourth phosphorus level) showed superiority in number of flowers (31.33 flowers plant-1), number of pods (28.66 pods plant-1), and single plant yield (193.67 g plant-1). Meanwhile, the interaction A2P3 (local cultivar x third phosphorus level) was superior in total yield (30.00 kg 1000 m-2).
Effect of Potassium Fertilization and Chamomile Extract Foliar Spray on Growth and Active Compounds of Portulaca Oleracea L. Grown in Gypsiferous Soil Heba M. M. Al-Hamdany; Ahmed Adnan Mohammed; Suzan D. Hadi; Dalya Ayden Hawar
Andalasian International Journal of Agriculture and Natural Sciences (AIJANS) Vol. 6 No. 2 (2025)
Publisher : Lembaga Penelitian dan Pengabdian, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijans.v6.i2.71-79.2025

Abstract

The present study was conducted to investigate the effect of potassium fertilization and foliar application of chamomile extract on the growth and active compounds of Portulaca oleracea L. The experiment was carried out at the College of Medicinal and Industrial Plants / University of Kirkuk in the Ronaki area in Kirkuk Governorate using anvils. Four levels of potassium fertilizer (0, 20, 40, 80) kg K ha-1 and three concentrations of chamomile extract (0, 3, 6 g L-1 of water) were used on the growth of the portulaca plant L. oleracea. The variety used in this study is the local variety. The study was carried out with a factorial experiment and a randomized complete block design (R.C.B.D) with three replicates. The results showed that the fertilizer level of 40 kg K ha-1 was significantly superior to the rest of the levels in giving the highest plant height, number of leaves, leaf area, and other studied traits. The results also showed that the concentration (6 g L-1) of chamomile led to a significant increase in all growth characteristics of the barberry plant, while the interaction between potassium fertilization and spraying with chamomile extract had a significant effect at the combination (40 kg K ha-1 + 6 g chamomile L-1 of water) on all the studied traits.
Economic Analysis for Achieving Allocative-Technical Efficiency in Sustainable Agricultural Projects (Calf Fattening Farm as A Model) Abbas Abd Ahmed Al-Tamimi; Dawood Fahad Abdullah
Andalasian International Journal of Agriculture and Natural Sciences (AIJANS) Vol. 6 No. 2 (2025)
Publisher : Lembaga Penelitian dan Pengabdian, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijans.v6.i2.88-100.2025

Abstract

Livestock production projects are environmentally friendly, as they provide farmers with organic fertilizers and year-round job opportunities. This helps reduce the use of chemical fertilizers, thereby simultaneously achieving the goal of environmental improvement and poverty reduction. This research conducted an economic analysis of a calf fattening farm in Diyala Province for 2024. The research adopted a quantitative economic analysis methodology using a multivariate production function in the double logarithmic form. The research aimed to conduct a quantitative economic analysis to determine the optimal combination of production resources to achieve optimal production. Based on the prices of production resources, the cost equation was formulated, and then the Lagrange multiplier method was used to create the objective function. The optimal production reached (827) K.g/calf, which represents the weight of the calf during the fattening period of (25) weeks. The economic analysis showed that the elasticity of production resources was less than one, which means that the production process is in the second stage of the law of diminishing returns, where technical efficiency is achieved. Through the analysis of the allocative efficiency of production resources, it became clear that there is an inefficient use of dry fodder and green fodder, as the elasticity of these two resources was greater than one, and less than one for the other resources. The study recommended increasing the effective role of agricultural extension to educate calf farmers on the application of scientific research findings to achieve optimal production levels. It also recommended In addition to supporting fodder.
A Field Study of the Job Stress Faced by Agricultural Employees in the Kirkuk Agriculture Directorate, Iraq Ekhlas Thaer Mahmood; Ahmed Thwaini Hdoom Al-Salhi; Mahdi Najm Rakhit; Amal Najim Hasan
Andalasian International Journal of Agriculture and Natural Sciences (AIJANS) Vol. 6 No. 2 (2025)
Publisher : Lembaga Penelitian dan Pengabdian, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijans.v6.i2.80-87.2025

Abstract

The study aimed primarily to identify the job stress facing agricultural employees in Kirkuk Agriculture Directorate and determine the descending order of each area of study, This was achieved by using a data collection form that included three main areas of job stress: (personal stress, administrative stress, and organizational stress) , The research population consisted of all agricultural employees, totaling (600) agricultural employees in Kirkuk Agriculture Directorate, A random sample of (18%) was taken, comprising (108) agricultural employees ,The research results concluded that organizational stress ranked first in terms of importance, with a weighted mean of (3.41) and a percentage weight of (68.2%), followed by personal stress (3.11, 62.2%), and then administrative stress (3.06, 61.2%). The most prominent sources of stress were: role ambiguity, poor appreciation, lack of professional development opportunities, unfair wages, and high expectations without the necessary resources, Furthermore, continuous exposure to these stress may weaken an employee’s ability to make sound decisions, innovate, and adhere to agricultural quality and safety standards. The study recommends implementing targeted training programs, improving administrative support systems, enhancing communication between leadership and employees, and creating a stimulating and supportive work environment, these steps are essential to ensuring the sustainability and competitiveness of the agricultural sector by maintaining the mental health and professional competence of its workers.
Beyond the Metropolis: Drivers of Online Food Delivery Adoption Ikhwan Arief; Armijal Armijal; Ridhamelia Ridhamelia
Andalasian International Journal of Agriculture and Natural Sciences (AIJANS) Vol. 6 No. 2 (2025)
Publisher : Lembaga Penelitian dan Pengabdian, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijans.v6.i2.101-109.2025

Abstract

This study investigates the determinants of purchase intention for Online Food Delivery (OFD) services among Generation Z and Millennial consumers in a non-metropolitan city within an emerging market, using ShopeeFood in Padang, Indonesia, as a case study. The rapid saturation of OFD services necessitates a re-evaluation of classical technology adoption models. This research employs an extended Technology Acceptance Model (TAM) framework, integrating digital marketing as a key antecedent. Utilizing a quantitative survey methodology with a sample of 102 consumers, the data were analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM). The findings reveal that Perceived Usefulness (B=0.584, p<0.001) and Digital Marketing (B=0.262, p<0.05) are significant positive predictors of Purchase Intention. Critically, Perceived Ease of Use (B=0.046, p<0.05) was found to have no significant effect. The model collectively explains 56.1% of the variance (R2) in purchase intention, demonstrating substantial predictive power. This study's principal contribution lies in providing empirical evidence that in a maturing digital service market, ease of use may transition from a direct driver of intention to a baseline 'hygiene factor'. Consequently, the core utility of the service and the effectiveness of strategic marketing efforts significantly influence consumer choice. These findings offer crucial implications for OFD platforms seeking to capture market share in the next frontier of digital growth: the emerging economies' secondary and tertiary cities.

Page 7 of 7 | Total Record : 66

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