Issue · 2026
Vol. 39, Iss. 2
25 articles · All issues →
Research ArticleThe Role of Organic Fertilizer in Vegetative Growth Indicators and Some Bioactive Compounds of Two Hybrids of Broccoli
Marwa Abdel Rasoul Howeidi, Ali Ibadi Manea, Mohammed J.H. AL-Shareefi
This study aims to assess the influence of organic fertilizer on the growth parameters of two types of hybrids and certain bioactive compounds. The experimental design was split plot as randomized complete block design (RCBD), where three replications were tak…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.39.47
Research ArticleThe Impact of Various Equipment, Processing Speeds and Plant Residues on Some Mechanical, Physical Traits of The Soil and The Productivity of Yellow Corn
Khalid Zemam Amer, Sara Ali Muter
A field study was carried out to assess how different equipment operating speeds and plant residues affect certain soil mechanical and physical characteristics, as well as yellow maize output. The experiment included three distinct types of ploughs including a…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.203.210
Research ArticleEffect of Nutrient Combinations and Plant Spacing on Yield and Oil Quality of Indian Mustard (Brassica juncea L.)
Anfal Ameen Al-Aboud, Sundus Abdulkariem Alabdulla
The study was conducted to investigate the effect of nine combinations of phosphate and potassium fertilizers (T0-P0K0, T1-P0K30 ,T3-P0K60, T4-P40K0, T5-P40K30, T6-P40K60, T7-P80K0, T8-P80K30 and T9-P80K60, kg ha-¹), and two spacings between plants (30 an…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.167.178
Research ArticlePick Your Own Oranges, Agrotourism Recommendations in Karo Regency, Indonesia
Rahmanta, Indra Wahyudi, Elisabet Siahaan
Customers’ decisions to visit Karo Regency’s agritourism and purchase pick your own citrus fruits are influenced by the calibre of goods and services offered to them. This study investigates the impact of product quality on consumer decisions to vi…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.211.219
Research ArticleAssessment of Heavy Metal Accumulation and Microbial Shifts in Iraqi Soils Irrigated with Wastewater Implications for Food Safety
Laila S. Abu Hadal1 Muhammad Abdul-Razzaq Ali Al-Haidary2 Dumooa F. Al-Hameedawi3 Isam Nghaimesh Taeb, Qais R. Lahhob
Climate change and the upstream dams construction question induce severe shortages of water in Iraq, thus forcing farmers to rely on the irradiation of the untreated wastewater. This practice though it provides essential nutrients to the plants introduces mate…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.187.195
Research ArticleSynergistic Effect of Biochar and Indigenous Plant Growth-Promoting Rhizobacteria (PGPR) on Soil Fertility and Crop Productivity in Arid Regions of Iraq
Ibrahim Ayad jihad1 Eatidal Akram Farhan2 Aseel Ehsan Mahmoud3 Alaa Saleh Mahdi4 Maryam Mansoor Mathkoor5 Mustafa Mudhafar, Qais R. Lahhob
In arid lands soil degradation, salinity, and low fertility are major issues that limit agricultural production. Biochar, a carbon-rich material produced from biomass pyrolysis, and native plant suggest the words rhizobacteria/plant growth-promoting rhizobacte…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.179.186- Research Article
Sustainable Fertilization with Palm Residues, Organic Sulfur and Garlic Extract and its Effect on the Growth, Yield, and Chemical Characteristics of Bunching Onion
Elaf Hamza Wali, Yasamen Fadhil Salloom
This study was conducted to investigate the impact of fertilization with palm residues (0, 20, and 30 tons ha-¹), organic sulfur (0, 300, and 600 kg ha-¹), and foliar spraying with garlic extract (0 and 6 mL L-¹) on selected vegetative traits, y…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.83.94 - Research Article
Effect of Organic Fertilization and Foliar Nutrient Sprays on Enhancing Vegetative Growth and Chemical Attributes of Local Sweet Lemon Saplings
Zainab Musa Jaffar, Salah Hassan Jabbar AL-Hchami
The study evaluated the effects of soil application of spent mushroom substrate at rates of 0, 1, and 2 kg sapling-1, foliar spraying with potassium sulfate at 0 and 3 g L-1, and foliar application of amino acids at three concentrations (0, 2, and 4 milliliter…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.95.104 
Research ArticleThe Effect of Compaction Levels and Amendments on Physical and Hydraulic Properties of Silty Clay Soil
Aya Majeed Abdulsalam, Mohammed Ali Abood
Soil compaction is among the most important physical soil properties that can affect seed germination and field establishment, and its effects can be reduced by using soil amendments. To achieve this goal, silt clay soil samples were taken and analyzed. The ex…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.75.82
Research ArticleStudy of the Effect of Encapsulating Materials on the Stability of Bifidobacterium Bifidum during Spray Drying: FT-IR, TGA, and Electron Microscopy Analysis
Asaad Shamil Atiya¹, Abdulridha Ati Jaafar², Mustafa Adnan Idan³
The encapsulation of probiotic bacteria is a promising method for the maintenance of bacteria viability during processing, storage, and gastrointestinal transit. Potential of gum Arabic and buffalo milk whey as carrier for and encapsulated Bifidobacterium bifi…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.48.56- Research Article
Effect of Soil Amendments and Antitranspirants on the Growth and Yield of Peanut (Arachis hypogaea L.)
Riyam Mezher Abd, Jamal Naser Abdulrahman, Riyadh Jabbar Mansour Al-Maliki
This study was conducted to evaluate the effect of soil amendments and anti-transpirants on the growth and yield of peanut (Arachis hypogaea L.) under the climatic conditions of Wasit Governorate, Iraq, during the 2024 growing season. The experiment was arrang…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.57.64 
Research ArticleEvaluation of the Effect of Different Wavelengths, Nanomaterials, and Synthetic Plant Hormones on the Germination of Onion (Allium cepa L.) Seeds
Fatima Hamed Ismail, Majid Hanoon Sharhan
The laboratory study was conducted to investigate the effects of different light wavelengths (including red and far-red light), selected plant hormones, and nanomaterials on the germination of onion (Allium cepa L.) seeds. The results revealed that all tested…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.105.112
Research ArticleResponses of Strawberry Growth, Yield, and Marketable Fruit Quality to Mycorrhizal Inoculation, Mineral Fertilization, and Foliar Application of Chitosan
Yasir R. Khairi, Ahmed T. Joody
Two fields and storage experiments were conducted to evaluate the impact of inoculation application of mycorrhiza, mineral fertilizer, and foliar spraying of chitosan on the growth, quantity, and quality characteristics of strawberry fruits. The field experime…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.142.158
Research ArticleEffect of Fulvic Acid in Increasing the Resistance of Wheat Plants Triticum Aestivum L. To Saline Stress
Dunya Sabeeh Mohammed, Waqeed Mahdi Hadif, Izyanti Ibrahim
This study was conducted in the agricultural season of the year 2021-2022 in order to assess the effect of fulvic acid in increasing the ability of the wheat plants to withstand salt stress. The fulvic acid factor included the use of six concentrations (0, 2,…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.231.236
Research ArticleAntibacterial Activity of Alkaloids, Phenols Extracts, Estimation of Active Compounds and Profile of Bioactive Compounds by HPLC Method of Rosmarinus officinalis
Ekhlass Mashhad Solaq, Roaa M.H. Shoker
Rosmarinus officinalis is being used in folk medicine due to rich of bioactive secondary metabolisms such as alkaloids, phenols, flavonoids, glycoside, tannins, and saponins which have antibacterial activity especially with developing the drug-resistant bacter…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.123.131
Research ArticleEffect of Ionic Strength From Different Salt Sources on Iron Adsorption in Calcareous Soil
Awatif Hameed Dadoosh, Kadhim Makki Naser, Shireen Mudhafar Ali Alkhalil
This study was conducted to determine the effect of ionic strength from different saline sources on iron adsorption in a calcareous soil with a loam texture. This aim was achieved by performing a gentle equilibrium with an iron solution prepared from iron sulf…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.65.74
Research ArticleApplication of Insect-Derived Chitosan as a Biostimulant to Improve Growth and Resistance in Iraqi Wheat Varieties
Ibrahim Ayad Jihad1 Mustafa Mudhafar2 Noor F. Abdul Hassan3 Mariam Jamal Abd Alkareem4 Maryam Mansoor Mathkoor, Qais R. Lahhob
Wheat (Triticum aestivum L.) is an important staple and its production suffer sfrom impacts such as salinity, drought, and diseases including Fusarium head blight. Here, we present the results of a field study to assess insect-derived chitosan as a biostimulan…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.159.166
Research ArticleCopper Adsorption Behavior in Selected Calcareous Torrifluvents Soil
Sarah Muayad Bahjat, Raad Abdel-Kareem Al-Tamimi
Copper adsorption by five calcareous Torrifluvents soil was evaluated by equilibrating 2 g of each soil sample with concentrations of Cu that covered a range from 0 to 200 ug ml-1. The effect of copper (Cu) carriers was also examined using two carriers includi…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.33.38
Research ArticleAssessment of Susceptibility of Seven Sweet Pepper Cultivars to Chili Leaf Curl Virus Infection under Plastic House Conditions
Suadad A. Ibrahim, Layla J. Sabr
This study aimed to evaluate the impact of Chili leaf curl virus (ChiLCV) on various growth parameters of seven sweet pepper cultivars grown under plastic house conditions. The evaluation was conducted 85 days after planting and the tested cultivars included K…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.113.122
Research ArticleIsolation and Identification of a Local Bacterial Isolates from Soil Producing Chitinase and Optimization of its Production
Reem A. Abdullah, Ziad T. Sedrah
Nine pure isolates were recovered from various soils, with only three identified as Bacillus sp based on culture and morphological characterisation. The isolates utilized as producers of chitinase enzyme. The highest activity (5.85 U/ml) of the enzyme was achi…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.220.230
Research ArticleImpact of Microbially Enriched Vermicompost on Soil Health and Vegetable Yield Under Greenhouse Conditions in Iraq
Dumooa F. Al-Hameedawi1 Saraa M. Harbi2 Kawther hussein Dikain3 Zahraa Sadoon Hadi4 Rand Kamil Abbas5 Maryam Mansoor Mathkoor6 Mustafa Mudhafar, Qais R. Lahhob
The deterioration of soil and loss of nutrients requires the implementation of sustainable farming methods. This research assesses the effectiveness of microbially enhanced vermicompost (MEV) in enhancing soil quality and tomato production in a greenhouse sett…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.196.202- Research Article
The Effect of Foliar Application with Glycine and Proline on the Hormonal Content and Vegetative Growth Traits of Grape Saplings
Hussain N.R. AL-Karawi, Thaer R. Awad
The study was conducted to investigate the impact of the amino acids Glycine and Proline on the content of grape seedlings in certain plant hormones and vegetative growth characteristics. The experiment was arranged in a factorial experiment (3×3) trail…
30 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.132.141 - Research Article
Improving the Growth Yield Components and Quality Characteristics of Bread Wheat (Triticum aestivum L.) using Foliar Spraying with NPK Fertilizers
Ehab Jabbar Aldabbagh, Ali Razzaq Aljanabi, Dheeaa Salih alrawi, Jasim Mohammed Saleh
The experiment was carried out at the Center for Biotechnology and Environment / University of Fallujah, during 2023-2024 season to study the effect of balance NPK concentrations on growth, yield and quality of some wheat cultivars. A split block arrangement a…
29 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.16.25 
Research ArticleAssessment of Water and Soil Conservation Schemes in the Arid Zone of Taadmit (Djelfa, Algeria)
Fatima Zohra Benrekia, Abdelkrim Benaradj, Boutkhil Morsli
Serious environmental issues, such as soil erosion, diminishing water quality and quantity, and biodiversity loss, are present in the Djelfa region of Algeria. The aim of this research was to determine and evaluate the present state of different methods and ap…
29 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.01.15- Research Article
Response of Eight Soft Wheat (Triticum aestivum L.) Cultivars to Different Planting Dates
Yarub Samer Ahmed Alnuimy, Omar Ahmed Fathi Al-Rubaie, Azhar Idrees Thanoun Khattab, Sarah Mohammed Ali Al-Jubouri, Wadhah Thabit Abed Al-Dahi, Ali M. Saadi
An experiment was conducted in Mosul District, Nineveh Governorate, during the 2024/2025 agricultural season. The experiment aimed to evaluate eight wheat cultivars (Abaa 95, Buhuth 22, Buhuth 10, Adana 99, Baghdad 1, Sham 7, Rashid, Babil 113). The cultivars…
29 Jun 2026DOI 10.17582/journal.pjar/2026/39.2.26.32