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USING ARTIFICIAL NEURAL NETWORKS MODELS FOR PREDICTING WHEAT YIELD PRODUCTIVITY
2020
Mohamed Genaidy
Artificial intelligent provides diverse solutions for the complex problems in agriculture research. The study aimed to use three models of artificial neural networks (Feed Forward Neural Network (FFNN), Generalized Regression Neural Network (GRNN) and Radial-Basis Neural Network (RBNN)) in the field of wheat yield prediction. 27-year data for the period (1986-2012) were utilized to improve the models and four-year data (2013 and 2016) were used to estimate the models, to compare their outputs with the measured data. Prediction data was not entered in the process of building neural network models. The results showed that the optimal configuration of the FFNN model consists of 40 neurons in the hidden layer (8-40-1). The Tan Sigmoid activation function was used in both the hidden layer and the output layer using all of these models (anterior neural feeding network and the regression neural network and radial base neural network) in the 4-year wheat yield forecast field for production (2013-2016) by applying 8 input parameters that were result of NMMS (8.6%, 7.6% and 15.7% resp.), To find that FFNN and GRNN provide the best result from BRNN because while the information set was large or in a wide range, then the range data ranges from -1 to +1 (normalization data) , GRNN gives better outcomes after the information or sample data were in large range.
Mostrar más [+] Menos [-]EFFICIENCY OF THE AGRICULTURAL ECONOMIC RESOURCES USED IN SUMMER TOMATO PRODUCTION IN ALEXANDRIA GOVERNORATE
2020
Ahmed Kassem | Noura Tantawy | Tamer El-Santresy
The research aimed to measuring the Efficiency of the Agricultural Economic Resources Used in Summer Tomato Production in Alexandria Governorate, the research is relied on using of some descriptive and quantitative economic analysis methods in data analysis, especially Data Envelopment Analysis (DEA) method, based on field data collected during the 2020 season from 30 summer tomato's farmers in Alexandria Governorate. The research reached a set of results, the most important of which can be reviewed as follows: (1) The overall efficiency criteria for a feddan of summer tomatoes in the research sample are: the net return is about 12.52 thousand pounds, the income over variable costs is about 17 thousand pounds, the benefitcosts ratio is about 1.41, and the profit of the spent pound is about 0.41 pounds. (2) The average Scale Efficiency was about 95.6%, which means that the percentage of exploitation of economic resources used in production in summer tomato farms in the research sample was about 95.6%, indicating that there is a possibility of expansion of 4.4% to reach the optimum volume of production on these farms. (3) The average Technical Efficiency according to the (BCC) model is about 98.4%, and this confirms the possibility of increasing the summer tomato production by 1.6% without increasing the amount of economic resources used. (4) Inefficient farms can achieve complete technical efficiency as reference farms by reducing the economic resources used, which are: the human labor by 7.22%, the automated work hours by 8.36%, the seedlings by 2%, the fertilizer Municipal by 4.62%, nitrogen fertilizer by 4.39%, phosphate fertilizer by 4.96%, potassium fertilizer by 4.93%, and pesticides by 6.81%, while keeping the same volume of production of summer tomatoes research sample. (5) The average Allocative Efficiency of summer tomato farms was about 79.7%, which means that re-employing the used economic resources will save about 20.3% of the production cost through adopting better technology and optimal employment of resources. (6) The average Cost-Efficiency of summer tomato farms in the research sample was about 78.4%, which means that production costs can be reduced by about 21.6% of the current production costs without affecting the production level of summer tomatoes. (7) Achieving the technical efficiency of summer tomato production at the level of Alexandria Governorate the following: (a) Increasing production by 13.07 tons, with a monetary value estimated at 23.59 milliom pounds, (b) providing an area of agricultural land with a horizontal expansion of 586.12 feddans, which is equivalent to the increase achieved In production as a result of raising technical efficiency, (c) rationalizing the use of irrigation water in Alexandria, with a total of about 2.04 million m3 , which is the amount of savings achieved in irrigation water that is necessary for the area of land that has been provided in Alexandria. In light of the findings of the research, it recommends the necessity; (1) Educating summer tomato farmers about the optimal the economic resources used in production to reach the optimum volume of production, (2) Reduce the prices of agricultural production inputs and provide them in a timely manner so that the farmer does not resort to the black market, (3) Issuing advisory bulletins to confront the changing climate and high temperatures in summer tomato cultivation.
Mostrar más [+] Menos [-]Potential the biological or chemical control of lettuce white rot and maintain productivity
2020
Samuel Allah | Ahmed Abou El-Yazeid | hany gamal | ahmed bondok
The experiments were executed on the autumn and the winter of (2016 /2017, 2017/2018) seasons at Qalyub area, EL-Qalyubia governorate, Egypt. The main objective for this study to find out the efficacy of several biological and the chemical controls on growth and productivity of lettuce crop and management on white rot disease caused on Sclerotinia sclerotiorum. Thus, four treatments were applied as follow 1- the control (water application),2- Trichoderma asperellum, 3-Salicylic acid and 4- Calcium Chloride, which were evaluated and compared for the three fungicide as follow : 1- Iprodione , 2- Tebuconazole with Fluopyram and 3-Tebuconazole at the doses (85 & 100 ; 200 &100 and 50 &100 g or ml / 100L-1 respect.) . Which they tested for their ability for increasing the lettuce crop productivity and suppress mycelial growth of S. sclerotiorum pathogen by treatments were sprayed on two times on plants at (15-19 BBCH) stages by using backpack sprayer by 250 L./Fed.). Results indicated that, Iprodione applications significantly gave the highest indications of total and the Marketable yield in compared with the other experimental treatments for both seasons. Moreover, the two times of sprayes by Iprodione and Salicylic acid treatments had significantly lowered the disease incidence and disease severity and increasing the control efficiency in the both seasons. Whereas, the other treatments, Tebuconazole with Fluopyram or Tebuconazole and Trichoderma asperellum had a moderate effecacy on the lettuce crop productivety or the disease severity and incidence of Sclerotinia sclerotiorum in compared to the control treatment. In the contrast, application by Calcium Chloride had a low effect on the average yield or final yield as a mass and marketable plant in the both seasons and had insignificant effect on the disease severity or incidence of S. sclerotiorum despite low to medium recovery following applications. Finally, the control treatment was the lowest.
Mostrar más [+] Menos [-]IMPACT OF HEAT STRESS ON GROWTH PERFORMANCE AND CARCASS TRAITS IN SOME BROILER CHICKENS
2020
Omer Omran‏ | Ahmed Galal | Mahmoud Mahrous | Faisal Bayoumi
Environmental heat stress is one of the most challenging conditions in the world which have adverse impact on the industry of poultry. Broiler chicken strains are delicate to heat stress primarily due to not having sweat glands. The current study was aimed to investigate the effects of heat stress exposed on growth performance and Bio-physiological characteristics for (Cobb, Hubbard and Arbor Acres broiler hybrids) under the summer season when environmental conditions of Egypt were revealed. A total of three hundred one day old (one hundred birds from each hybrid) at one day of age were brooding under the same conditions of water, diet consumed, breeding system, vaccines and medications used during the period birds life even slaughtering age. The three strains were randomly divided into twelve groups (three strains "Cobb, Hubbard and Arbor Acres" X two treatments "control group and heat exposed group" X two replicates X twenty five chicks).The degrees of environmental temperature and relative humidity during housing are (Environmental temperature = 32°±2 Celsius degree, Relative humidity =50±5 percentage) for control group and (Environmental temperature =40°±2 Celsius degree, Relative humidity= 20±5 percentage) for the heat stressed group. The body weight, body weight gain, edible parts of carcass (carcass, thigh, drum, breast muscles and giblets weight) and inedible parts of carcass (blood, feathers, head and legs weight) were recorded to heat stressed group and control group. Lymphatic organs such as spleen, thymus and bursa weight were measured also. The last results concluded that the Cobb strain showed the best growth performance and carcass characteristics under heat stress condition, while the Arbor Acres strain considered the best strain which didn't effected a lot in their rectal temperature such another strains with heat exposure. The Arbor Acres strain for each group (control and treated) have the highest viability. The control group and Hubbard strain showed an increase in bursa weight compared to heat exposed group and another strains. It was concluded that the Cobb strain has the best performance under heat stress comparing to the other strains broiler chicken.
Mostrar más [+] Menos [-]Biochemical and Molecular Genetics Identification of Salicornia sp. and Sarcocornia sp. in the North Coast of Egypt
2020
Shams Hussein | ashraf Bakry | Laila Helmy | Nazmy Abdelghany
Because water scarcity anticipated to increase within the destiny in particular with growing global population and the rise in prosperity problem of the shortage of water suitable for cultivation of meals plants inside the global is growing in arid and semi-arid regions. There is the call to discover some other plant resource that doesn’t need freshwater i.e. able to grow using seawater. It is worth to note that Salicornia sp. and Sarcocornia sp. may be grown at the seawater. Currently, considered one of the most crucial issues dealing with Egypt is a way to provide food within the frame of limiting to be had soils for cultivation, limitation of water resources, especially after Ethiopian Nahda Dam and growing in population. Accordingly, the use of halophytes forage plants (Salicornia and Sarcocornia) using seawater has emerged as one in all the most exciting and intelligent research points. Therefore, a case observe was carried out in 2018 and 2019 to evaluate the nutritional status of Salicornia and Sarcocornia plants which can be grown on salty water in the North Coast of Egypt. Five samples of Salicornia and Sarcocornia amassed from Damietta Port Said coastal road and identified depends on phenotypic homes to Sarcocornia perennis (DA), Sarcocornia perennis (PS), Sarcocornia fruticosa, Salicornia europaea and Salicornia herbacea. Proximate composition analyses were carried out. It turned into obtrusive that, among dry biomass, carbohydrate has become in the most important proximate compositions in the Sarcocornia sp. and Salicornia sp. Tissues observed through ash. Molecular evaluation by SCoT techniques turned into done for Salicornia and Sarcocornia. The SCoT molecular marker techniques reach producing reproducible and dependable amplicons. Even though that the SCoT technique became higher in assessment for molecular variety and discrimination ability for all studied Salicornia and Sarcocornia.The results obtained have shown that the high nutritional value of the plant in terms of protein content, carbohydrates content and as a result, it is suitable for food
Mostrar más [+] Menos [-]An Economic Study on Tomatoes Export Competitiveness in Egypt
2020
El-Sayed El-Khishin
Vegetables export in general and tomatoes crop in particular are facing serious challenges in Egypt with regards to declining competitiveness in global markets in addition to some other challenges related to the ability to penetrate global markets and the variation in prices for different importing countries. This is in addition to the variation in demand conditions in importing markets. Through reviewing the competitiveness indicators for this crop. the paper shows that the quantity and value of tomato exports was highly fluctuating during the period under investigation. The lowest value was recorded in 2000 and amounted to 1.7 thousand tons. The maximum value was recorded in 2013 and amounted 74.8 thousand tons. Since then. the variable showed high fluctuation until 2018 where the quantity exported reached 41.8 thousand tons. The exporting value also was fluctuating. It reached its lowest in 2000 and amounted to 454 thousand dollars while the maximum reached around 728.7 thousand in 2015. The value decreased to 488.6 thousand in 2018 while the tomato exports also fluctuated since 2000 till 2007 and reached its maximum in 2017 with around $1513 /tons. The value showed a fluctuating trend where it reached around $1169/ton. The Saudi market dominated the market with around 37.16% of total Egyptian tomatoes exports. whether fresh or frozen. The paper also shows that the export competitiveness index for tomatoes during the mentioned period is above unity which means there is clear export competitiveness in global markets. The average index value reached around 1.33. which means that this crop is one of the very important crops that efficiently competes in the global markets.The paper finally shows the penetration parameter is weak and that there is minimal increase in this indicator. This means that there is a possibility to increase exported quantities from tomatoes through studying the reasons behind the fluctuations and design some policies and export mechanisms that can improve export competitiveness and penetration rates.
Mostrar más [+] Menos [-]Genetic Improvement of Calendula officinal through Mutation Induction using Gamma Irradiation and Chemical Mutagens
2020
eman elmenbawy | Eman Fahmy | Sawsan Elateek | Nahla Awad
Calendulais one of the basic plants of ornamentals. It is used in various purposes as cut flowers and in gardens. They are rich with active compounds such as chlorophyll a and b, phenols, flavonoid, and carotenoids. The present study focused on mutation induction in order to improve the morphology of the plant which can increase the turnout of its market. In order to examine which mutagen will make the most noticeable and permanent improvement of the plant. For the mutagens, seeds were treated with three doses of gamma ray (2500, 5000, 7000Gy) and two chemical mutagens; colchicine and EMS; which were applied at concentrations of 1000, 3000, and 10000 ppm. With the aim to measure the plant improvement, we measured the plant morphology, its active compounds and protein profiling before and after treatments with both γ-radiation and chemical mutagen to see which one has the most effective imprint on the plant. The morphological parameters data showed the highest plant high by the two doses; gamma dose of 7000 Gy and EMS concentration 10000 ppm, while the lowest dose of colchicine (1000 ppm) made the most impact on the plant height. As for the highest number of leaves/plant, it was obtained at 5000 Gy and 10000 ppm of EMS, while 1000 ppm of colchicine had the same effect. But the number of flowers/plant was not affected by the gamma radiation and colchicine but increased significantly by 10000 ppm of EMS. Surprise, the flower diameter was not affected by EMS while decreased at 2500 Gy and 3000 ppm of colchicine. Considering the importance of flower shape, all treatments either gamma radiation or chemical mutagens showed noticeable changes. Whereas, the biochemical parameters measuring the active compounds, both Chl-a, Chl-b and carotenoids contents increased at 5000 Gy, while flavonoid increased at 2500 Gy. Although, all doses of gamma ray eliminated the phenols content. While the lowest used concentration of colchicine (1000 ppm) increased both of Chl-a, Chl-b, flavonoid and carotenoids, even though the 10000 ppm of colchicine increased the phenol. On the other hand, the highest concentration of EMS (10000 ppm) increased Chl-a and Chl-b while carotenoids, flavonoid and phenol increased at 3000 ppm of EMS. The protein-profile analysis showed fluctuation in the gene expression. The highest performance appeared at 7000 Gy of gamma treatment,1000 -3000 ppm of colchicine, while the same result was obtained by EMS at 3000 ppm.
Mostrar más [+] Menos [-]دراسة اقتصادیة لبعض مزارع بط التسمین بمحافظة الشرقیة
2020
Ola Abdel-Megeed Mekhaimar Abd El-Maksoud | Mohamed Sentrisy | Fatma Abbas | Faisal Bayoumi
تعتبرصناعة الدواجن وخاصة تربیة البط من أحد الصناعات الزراعیة الهامة فى جمهوریة مصر العربیة ککل وبمحافظة الشرقیة بشکل خاص نظرا لترکز صناعة البط فى محافظة الشرقیة. لذا یهدف البحث الى دراسة الملامح الرئیسیة لصناعة انتاج البط فى محافظة الشرقیة بصفة خاصة. کما استهدف دراسة اقتصادیات هذه الصناعة بتقدیر دوال الانتاج. وحصر أهم المشاکل والمعوقات التى تواجه التوسع فى القطاع الانتاجى للبط. وتمثلت مشکلة البحث فی تقلص فى أعداد تربیة البط وعدم اهتمام معظم المربیین بالمزارع وعدم توفر آلیة واضحة من قبل الدولة للاهتمام بقطاع انتاج البط بالجمهوریة ککل وبمحافظة الشرقیة بشکل خاص بالرغم من الممیزات العدیدة لتربیة البط ومعامل تحویله الغذائى العالى ومقاومته العالیة للأمراض، الأمر الذى دفع بالباحث الى دراسة اقتصادیات بعض المزارع المتخصصة بتربیة البط بالمحافظة، وحصر أهم المشاکل والمعوقات التى تواجه أصحاب هذه المزارع. أعتمدت الدراسة على استخدام أسلوب التحلیل الوصفى والکمى وأسالیب الانحدار البسیط والمتعدد. کما اعتمدت الدراسة علی البیانات الثانویة بمدیریة الزراعة بمحافظة الشرقیة، بالإضافة إلى بیانات أولیة جمعت بواسطة استمارة استبیان. وکانت اهم النتائج:ان اکثر المشاکل الانتاجیة المتعلقة بالکتاکیت، تمثلت فی ارتفاع أسعار الکتاکیت وعدم جودتها وعدم توافر مصدر شراء الکتکوت، بینما المشاکل الانتاجیة المتعلقة بالأعلاف کان أرتفاع أسعارها وعدم تعامل الشرکة مع المربى مباشرة وعدم جودته وسوء التخزین وشراء اعلاف مجهولة المصدر وعدم توافر مصدر شراء العلف، بالاضافة الى المشاکل المتعلقة بالادویة والخدمات البیطریة وتمثلت فی مشکلة ارتفاع اسعار الادویة وعدم وجود الادویة وعدم توافر الاشراف البیطری، هذا بالاضافة الى المشاکل المتعلقة بالعمالة والمتمثلة فی قلة العمالة المدربة وارتفاع الاجر, وهناک مشاکل اخرى مثل مشکلة عدم توافر مصادر الوقود وعدم توافر مصادر الفرشة. کما تبین من دالة الناتج الکلی (Q) أن أهم العناصر الانتاجیة ذات التأثیر المعنوی علی الناتج الکلی للدورة الواحدة من مزارع بط التسمین تتمثل فى کمیة العلیقة المقدمة وعدد العمال وعدد الکتاکیت فی اغلب السعات الانتاجیة.وأوصى البحث بما یلى : 1. العمل على نشر ثقافة التدریب وذلک لتوفیر العمالة الفنیة المدربة.2. توفیر حملات توعیة بیطریة , وتوفیر أمصال ولقحات فعالة.3. توفیر الأعلاف باسعار مناسبة.
Mostrar más [+] Menos [-]Assessment and Spatial Analysis of Sensitivity to Desertification in Wadi El Natrun, Northwestern Egypt using MEDLAUS model
2020
Hoda Nour-Eldin | Abdel -Aziz Sheta | Adel Shalaby | Mohammed Abd- El Wahed | Mohamed EL-Shinawy
Land degradation is a global environmental issue, given the various negative impact on socio-economic and ecological implications. It leads to reduced production capacity in addition to soil erosion, physical /chemical /biological /economic land deterioration, and long-term loss (or degradation) of vegetation. When a severe deterioration in drought areas called the process of desertification i.e. arid, dry sub-humid and semi-arid areas. Desertification processes reduces the productivity of the soil and as a result effect on food stocks. The main objective of this study is integrating remote sensing data and a geographic information system (GIS) to evaluate the environmental sensitivity for desertification in Wadi El Natrun, Egypt based on the Mediterranean Desertification and Land Use (MEDALUS) approach. The collected soil data; from description of represented soil profiles and analysis of soil samples, in addition to climate, plant cover, and management data were considered for assessing the sensitivity of desertification. The obtained results showed that 10.4 % of Wadi El Natrun area is considered severe sensitivity to desertification as a result of alkalinity and salinity, while the moderately sensitive area occupies approximately 10.93 % of the study area. The low sensitive one exhibits 76.3 %. This area is described by high soil quality because of the study area is one of the new development areas which were not affected by the factors of desertification. It can be concluded that the desert extension of El-Beheira Governorate (i.e. Wadi El Rayan) is one of the areas that possess valuable land resources which should be considered for future land reclamation projects. Similar international studies are recommended to be achieved with the use of multi-criteria GIS modeling (i.e. MEDALUS) which considered all relevant factors in the form of thematic layers for easier implementation and assessments. Present study represents one of the initial attempts to use the MEDALUS model for desertification assessment in the desert extension of El-Beheira Governorate.
Mostrar más [+] Menos [-]A TRIAL TO DETECT THE EFFECT OF STRAIN AND DIFFERENT SOURCES OF DRINKING WATER ON SOME PRODUCTIVE TRAITS IN BROILER CHICKS
2019
Shimaa Shaker | S. El-Safty | U. Shoureap | Zienb El- Awamry
The main goal of this experiment was to evaluate the effect of broiler strain and source of drinking water on some performance traits (body weight and carcass traits). Sample of water were taken from two different location sources, Giza governorate (as Nile water) and Qalubia governorate (as well water or ground water). Three different broiler strains were used in this study (Arbor acres, Hubbard and Cobb). Lead concentration (as a heavy metal element) and bacteriological analysis (total bacteria and fecal coliforms) in both water and carcass were carried out. The main results obtained can be summarized as follow: Arbor acres strain recorded the heaviest body at most ages compared to the other strains, the difference was highly significant at 5 and 6 weeks of ages. Total bacteria were significantly high in ground water compared to Nile water. Conversely, Coliforms bacteria count was significantly high in Nile water compared to ground water source. Regardless strain type, high positive correlation between lead concentration in drinking water and lead concentration in liver, kidney and carcass weight was observed
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