دراسة كفاءة استخدام المياه لمحصول الطماطم عند معدالت مختلفة من التسميد البوتاسي والري
مقال في مجلة علمية

أجريت هذه الدراسة في منطقة جنزور غرب مدينة طرابلس الختبار تأثير مستويات مختلفة من التسميد البوتاسي والري بالتنقيط على كفاءة استخدام المياه لغرض تحديد أفضل مستوى للري والتسميد الذي يعطي انتاجية مقبولة لمحصول الطماطم تحت الظروف الحالية من ندرة المياه وارتفاع سعر األسمدة. ولتحقيق هذا الهدف تم زراعة محصول الطماطم لموسمين متتاليين ،2018 .2019 أستخدم في هذه الدراسة أكسيد البوتاسيوم بمعدالت )،0 ،150 300( كجم للهكتار في صورة سماد كلوريد بوتاسيوم، ومعدالت الري )،%75 ،100% 125%( من االحتياجات المائية المحصولية الموسمية التي قدرت )7200( متر مكعب للهكتار؛ كما أضيفت الجرعات الموصي بها من األسمدة النيتروجينية في صورة يوريا و األسمدة الفوسفاتية في صورة خامس أكسيد الفوسفور بمعدالت )،220 60( كجم للهكتار على التوالي. احتوت التجربة على ثالث مكررات بتصميم القطاعات العشوائية الكاملة. أظهرت النتائج أن أحسن كفاءة استخدام للمياه (WUE (Efficiency Use Water كانت 4.29 كجم/م³ عند مستوى ري %100 ومستوى تسميد بوتاسيوم 300 كجم/هكتار، وكانت أقل قيمة لكفاءة استخدام المياه 1.89 كجم/م³ عند مستوى ري %125 ومستوى تسميد بوتاسيوم 0 كجم/هكتار.

عبدالباري محمد محمد بلعيد، (04-2023)، طرابلس: المجلـــة الليبيــة للغـــذاء والتغذيــة، 1 (4)، 1-10

Evaluation of Groundwater for Irrigation Purpose in Al-Heira Agricultural Project in Libya Using Meireles Model (WQIM)
مقال في مؤتمر علمي
  • Abstract: The research was conducted with the aim of assessing the quality of irrigation water for the Al-Heira Agricultural Project using the WQIM (Meireles et al,2010), and the classification of (USSL,1954), 25 random samples of groundwater from various farms in the region were collected during November 2020. Several chemical analyses were performed to estimate pH, EC and major dissolved ions. The results showed that the values pH, EC were convergent except wells (4, 24, 25). For dissolved major ions , the highest value was in well (25). Calcium concentrations were high in wells (4,11,24, 25). The highest concentrations of magnesium were in wells which located north west of the study area, specifically the well (4). The highest value was for sodium concentration in wells north-west of the study area specifically the well (4). The highest concentrations of potassium were in the two wells (17, 9). Chloride and bicarbonate ions were also observed to be high in wells which located north-west of the study area, specifically wells (25, 24, 11 and 4). On the other hand, sulfates, the highest concentrations were noticed in wells which located north-west and south-west of the study area. According to the WQIM index, 28% of the wells in the study area were classified as having high-use constraints for irrigation purposes, i.e. wells (2,3,7,10,13,19,24). They are recommended to be used for irrigation of crops with moderate tolerance to salts. 72% of these wells were classified highly restricted and recommended for irrigation of crops with moderate to high tolerance to salts. According to (USSL ,1954), All water well samples were classified with C4S1 category. Such category was classified has very high salinity water. 

خيري محمد ميلاد العماري، (04-2023)، International Journal of The Environment and Water: المجلة الدولية للبيئة والمياه، 1-13

The prevalence of Trichomonas vaginalis among women in Zawia city
Journal Article

Trichomonas vaginalis is identified as greatest public sexually transmitted disease

Mostafa Mohamed Omar Abdoarrahem, Fawzia Alajeli Alharari Shawesh, (04-2023), Academy Journal For Basic and applied science: Libyan Academy, 5 (1), 1-11

The role of Exercise Electrocardiogram, 2-Dimensional Echocardiograph, and Biochemical analysis in the diagnosis of Coronary Heart Diseases in diabetic and non-diabetic individuals
Journal Article

Coronary heart disease (CHD) remains the leading cause of death in DM2. The purpose of this study is to determine the usefulness and effectiveness of exercise electrocardiography (Ex-ECG) and standard two-dimensional echocardiography (2DE) among type 2 diabetic (DM2) and nondiabetic (NDM) of both genders in the diagnosis of CHD accompanied with biochemical risk factors for CHD A total of 102 age-matched DM2 and non-diabetic individuals in both genders were recruited in the current study. All cases were assessed for CHD diagnosis using the Bengali version of the Rose Angina Questionnaire guidelines. Cardiologists examined All groups clinically, and Ex-ECG and 2DE were applied, accompanied by biochemical parameters analysis of all participants in Ematiga's laboratory. All diabetic and non-diabetic subjects are age-matched. The diabetic women were obese with a BMI of (>30 kg/m2 ). The duration of diabetes in females was (10.2±1.02 yrs) and in males was (9.7±0.8 yrs). There was a positive relationship between the duration of diabetes and HbA1c level. Some evidence presented in this study revealed that the percentage of LVEF is negatively correlated with the duration of diabetes mellitus. In addition, there is statistical significance in ST depression between both genders in (ND) and (D) groups. The relationship between ST-depression expressed as mV detected by Ex-ECG and duration of diabetes in females and males. In conclusion, both Ex-ECG, and 2DE testing are non-invasive, easy to perform, and accessible in rural hospitals and clinics. It can be beneficial in diagnosing, risk stratifying or assessing patients with CHD provided appropriate patient selection is used to enhance its sensitivity and specificity, especially in the presence of biochemical risk factors for coronary heart disease explained in this study helped identify or exclude the early diagnosis of CHD.

Bahaedin Mustafa Ramadan Ben Mahmud, Aboubakr KS, Rahuma ZOM, Ben Khalifa KM, (04-2023), Libyan Academy: Libyan Academy, 5 (1), 1-22

Effect of potassium drip fertigation on fruit yield, agronomic efficiency and partial factor productivity of tomato under western Libyan conditions
Conference paper

This study examined effect of potassium drip fertigation on the growth and

fruit yield of tomato under field conditions at western Libyan conditions, in two

consecutive seasons. The soil texture sites was sandy, pH around 8.0. the soil potassium

was extracted and estimated by flam photometer at 766 μm. The rate of potassium fertilizer

were F1: 0; F2: 150; F3: 300 kg K2O ha-1 as potassium chloride form in three replicates.

The experimental site was designed in randomized complete block (RCBD). and I1: 75%

ET𝑐; I2: 100% ET𝑐; I3: 125% ET𝑐 levels for irrigation. The interactions for both potassium

fertilization levels and irrigation treatments with fruit yield were found. The single

treatments of potassium fertilization or irrigation significantly affected the tomato fruit

yield, where fertilization and irrigation applications increased the fruit weight from 13.99 t

ha-1 to 34.47 t ha-1 t/ha minimum in F1I1 and maximum in F3I3. Application of different Kfertilizers

and irrigations had significant effect in PFP (partial factor productivity), and

AUE (agronomic use efficiency) as compared to K-control plots of tomato. The average of

PFP for K and irrigation in two treatments were 65.65 kg kg-1 in F2I3, and 59.43 kg kg-1 in

F3I3 which are greater than the values of control, F1I1, F1I2, and F1I3 treatments

Mohammed Abdulbari Mohammed Billaed, (03-2023), طرابلس: جامعة طرابلس, 16-23

The cross-link between demographic and clinical characteristics and level of Lipoprotein-associated Phospholipase A2 in diabetic type 2 and non-diabetic with and without coronary artery disease
Journal Article

ABSTRACT Coronary artery disease (CAD) is quite common among diabetics in all age groups and its risk is independently affiliated with Lipoprotein-associated phospholipase A2 (LP-PLA2). There is strong evidence that the elevated plasma level of Lp-PLA2 indicates vascular inflammation associated with plaque formation within the arteries. Therefore, the relationship between the plasma Lp-PLA2 level and coronary

artery disease risk factors between non-diabetic and diabetic patients will be studied. Materials and Methods: A total of 181 individuals were recruited from the National Heart Centre Tajoura and divided into 4 groups (40 healthy controls (HC), 43 non-diabetics (NDM) who had CAD, 54 DM2 without CAD, and 44 DM2 who had CAD). The relationship between Lp-PLA2 and the potential biochemical risk markers for CAD will be studied between the groups. Results: All the groups that participated in this study have similar body mass index. There is statistical significance in the level of plasma level Lp-PLA2 between DM2 with CAD, DM2 without CAD and HC with ( ***P<0.0001, **P<0.006), respectively; and likewise between NDM with CAD and HC with *P<0.05. Although there is a significant difference between the plasma levels of Lp-PLA2 between the groups below the age of 60 years, there is no statistical significance between the groups above the age of 60 years. Correspondingly, there is a statistical difference in the plasma level of Lp-PLA2 between healthy controls and both DM2 without CAD and DM2 with CAD with (**P<0.006, and ***P<0.0001), respectively. Once more, there is statistical significance in the plasma level of Lp-PLA2 between NDM with CAD and healthy controls with *P<0.05. Furthermore, there is a statistical difference in the serum level of CRP between DM2 with CAD and HC. In addition, there is a positive relationship exists between the duration of diabetes mellitus without CAD and the level of glycated haemoglobin (HbA1c) with **P <0.003 in both genders. Conclusion: In this study, the high level of Lp-PLA2 and CRP strongly indicate the presence of vascular inflammation associated with the formation of arterial atherosclerosis with thrombus formation. These findings are also correlated with diabetic duration and they could be used in the diagnosis and prognosis of coronary artery disease. 

Bahaedin Mustafa Ramadan Ben Mahmud, Essokni KH, Fellah AM, (02-2023), Libyan Academy: Libyan Academy, 5 (4), 1-25

تقييم أداء وفاعلية مستخلص نبات الغار األسترالي في إزالة العناصر الثقيلة من محاليلها المائية
مقال في مؤتمر علمي

الملخص: يعتبر نبات الغار االسترالي tobera Pittosporium من النباتات الزهرية، وينتمي إلى عائلة Pittosporacea التي يندرج تحتها أكثر من 200 نوع من هذا النبات. في هذه الدراسة تم تحضير المستخلص المائي للنبات بهدف استخدامه في إزالة العناصر الثقيلة من المحاليل المائية الملوثة. وتعتبر هذه الطريقة من الطرق الخضراء لمعالجة المياه الملوثة حيث يتم االستغناء تماما عن استخدام اإلضافات الكيميائية للتخلص من العناصر الثقيلة واالعتماد فقط على استخدام المستخلص النباتي ألحد النباتات المنتشرة في البيئة المحلية والتي ليس لها قيمة اقتصادية. لقد تم تحضير المستخلص النباتي بطريقة الغمر والنقع Maceration حيث يحتوي المستخلص علي مادة الصابونين Saponin الفعالة والتي تتمتع بالقدرة على االرتباط بالعنصر الثقيل و تكوين معقد كيميائي Complex من خالل رابطة تناسقية bond Coordinate، والمعقد الكيميائي المتكون من هذا التفاعل يترسب بصورة تلقائية وبالتالي يسهل تجميعه وفصله عن المحلول الملوث. لقد تم تقيم أداء وفاعلية مستخلص نبات الغار االسترالي في إزالة خمسة عناصر ( والنحاس Cu (2+ مختلفة هي: الرصاص Pb( ( والكادميوم Cd (2+ ( والكروم Cr (2+ ( والقصدير Sn (6+ ( من 2+ محاليلها المائية وذلك بحساب تركيز العنصر في المحلول بعد المعالجة وكذلك النسبة المئوية لإلزالة. تشير النتائج إلى أنه يمكن إزالة العناصر بنسبة مرتفعة وخصوصا بعد مرحلتين من المعالجة، وكانت نسبة اإلزالة على النحو وبلغت أعلى نسبة إزالة للقصدير97.5 % بمعامل اختزال حجمي 6+Cr > 2+Cu > 2+Cd > 2+Pb > 2+ التالي: Sn (VRF (يساوي 9 مرات من المحلول األصلي بعد 3 ساعات من المعالجة، بينما بلغت نسبة إزالة الكروم 63 % بمعامل اختزال حجمي يساوي 7 مرات تقريبا. ولتأكيد حدوث التفاعل الكيميائي بين المستخلص النباتي والقصدير فقد تم تحليل الراسب المتكون باستخدام تقنية حيود األشعة السينية XRD وتقنية األشعة تحت الحمراء IR، حيث تم رصد تكون الطبقات البلورية للمعقد الكيميائي المتكون باإلضافة إلى امتصاص األشعة تحت الحمراء بسبب وجود الرابطة .Sn-saponin

خيري محمد ميلاد العماري، (02-2023)، المؤتمر العلمي للزراعة الرقمية في ليبيا: كلية الزراعة جامعة طرابلس، 211-224

Organic Geochemical Evaluation of the Middle Devonian to Late Carboniferous Source Rocks, South East Murzuq Basin, SW Libya
Journal Article

Abstract— Ninety-four rock samples were taken from the Middle to Late Devonian Awaynat Wanin, Early Carboniferous Marar, Late Carboniferous Assedjefar formations. The cuttings of Assedjefar Marar and Awaynat Wanin Formations collected from two wells, in the A1-163 oil field, locateed in the Murzuq Basin. RockEval Pyrolysis, Total Organic Carbon (TOC) and molecular biomarker (via the use of chromatographymass spectrometry, GC-MS) as geochemical parameters were applied to find out the types of kerogen, depositional conditions and level of organic matter maturity for representative samples. Such Formations are poor to excellent quantity of organic matter. Results of TOC related with remaining generation potential (S2) and hydrogen index (HI) data showed that the organic matter attributed to Type II/III and Type III kerogen (gas and oilprone organic matter), as well connected to S1 parameter indicated indigenous hydrocarbon exist. Ratios data of individual hydrocarbons, n-alkanes, isoprenoids and biomarkers parameters of Triterpanes and steranes indicate non-marine with marine organic matter deposited under non-marine conditions for Awaynat Wanin samples while Marar and Assedjiefar Formations deposited in nonmarine to deltaic conditions. The maturity data from Tmax, spore colour index and biomarker related parameters based on terpanes, steranes, and low molecular-weight hydrocarbons indicate the studied rocks are ranged from immature to mature.


Key Words— Awaynat Wanin Formation, Middle to Late Devonian, Kerogen, Biomarker, Rock Eval, Murzuq Basin

Alsharef Abdassalam Abdallah Albaghdady, Salem Abdulghani Omar Aboglila, (12-2022), ليبيا: جامعة النجم الساطع, 2 (2), 122-130

Water Deficit at Different Growth Stages of Potato (Solanumtuberosum L.).
Journal Article

The experiment was conducted to assess the sensitivity of potato yield to dif-ferent irrigation levels at different growth stages. Irrigation levels were determined as percentages (WI 100% as readily available water to the crop (RAW)), and for the rest of the treatments (WII 75%, WIII 50%), as they were applied separately to all four stages of crop growth i.e., vegetative (SI), tuber initiation (SII), tuber bulking SIII, and tuber matu-ration (SIV). The design of complete random sectors was adopted to perform the experi-ments. The results revealed that all the studied parameters: plant height (cm), vegetation plant weight (g), number of tubers per plant, tuber weight (g), tuber yield (ton/ha), and crop water productivity (kg/m3) varied among irrigation water levels at different stages of growth. It was found that the two stages, SII and SIII in potato crops, were more sensitive to deficit irrigation compared to other stages. According to the obtained results, in the case of water abundance conditions, the treatment WII SI can be applied to obtain the highest water crop productivity. In conditions of water scarcity, it becomes necessary to apply the treatment WIII SIII to obtain the highest crop water productivity.

Mostafa Ali Mohamed Benzaghta, (12-2022), Al-mukhtar Journal of Sciences: جامعة عمر المختار, 37 (4), 316-328

دراسة المحتوى الكيميائي لبعض العناصر الثقيلة في مياه الصرف الصحي المعالجة بحوض ساسو بمصراتة ليبيا وملائمتها للأغراض الزراعية
مقال في مجلة علمية

يعد استخدام مياه الصرف الصحي المعالجة للأغراض المختلفة أحد أهم البدائل الاستراتيجية للمياه

المتجددة، ومن أولويات خطط التنمية في كثير من بلدان العالم؛ خاصًة تلك التي تعاني من نقص في مواردها

المائية التقليدية، بالإضافة إلى أهميتها من النواحي الصحية والبيئية والاقتصادية، وأن استخدام هذه النوعية من

المياه مرهون بمدى تحقيق مستويات آمنة، لإعادة استخدامها في مجالات الرَيّ الزراعي وأي استخدامات

أخرى. أجريت هذه الدراسة لبيان مدى تلوث مياه الصرف الصحي المعالجة للاستخدام الزراعي المتجمعة في

حوض ساسو بمدينة مصراتة – ليبيا، حيث تم تقدير تركيز بعض العناصر الثقيلة وهي الرصاص، والكادميوم،

والزنك، والنحاس، والحديد، حيث أخذت ) 40 ( عينة من أربعة أماكن موزعة في الحوض وتحليل مياهه

كيميائيًا على مدار ستة أشهر، ابتداءً من أول شهر مارس إلى نهاية شهر أغسطس لعام: 2010 م، وقد تم تحديد

تم اعتماد مواصفتين قياسيتين لمدى صلاحية مياه الحوض لاستخدامها .(GPS) موقع الحوض باستخدام جهاز

2013 (، ومواصفة منظمة الأغذية والزراعة للأمم - للرَيّ الزراعي وهي المواصفة القياسية الليبية ) 770

.) المتحدة لعام ) 1989

بينتت النتتائج وجتود ت يترات شتهرية فتي نوعيتة الميتاه باختلافتات مكانيتة وزمنيتة للم شًترات المدروستة وفقًتا

لاستتخدام الميتاه المعالجتة والظتروف المحيطتة بهتا. ستجلت النتتائج ارتفتا فتتي كت م ل متن متوستط قتيم الرصتاص،

1.021 ( علتتتتى التتتتتوالي مكانيًتتتتا ،0.100 ،0.001 ،1.041 mg/L( والكتتتتادميوم، والنحتتتتاس، والحديتتتتد وهتتتتي

وزمنيًا.نتائج عينات الدراسة تدل علتى أن الميتاه المعالجتة المتجمعتة بحتوض ساستو لا ترتقتي ضتمن المواصتفات

المحلية، والعالمية المسموح والموصي بها في الرَيّ الزراعي.

مصطفى علي محمد بن زقطة، (11-2022)، مجلة العلوم: جامعة مصراتة، 15 (1)، 95-103