@article { author = {Hashem, Seham}, title = {An Economic Study to Minimize the Costs of Transferring Surplus Local Fish Production between Governorates under Alternative Scenarios for the Expected fish Production in 2025}, journal = {Journal of Sustainable Agricultural Sciences}, volume = {47}, number = {4}, pages = {417-428}, year = {2021}, publisher = {The National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology(ASRT)}, issn = {2536-9571}, eissn = {2536-958X}, doi = {10.21608/jsas.2021.84836.1296}, abstract = {The study aimed to identify the productive governorates with a production surplus and whose production exceeds their consumption, and the other governorates with a deficit whose consumption exceeds their production, and to determine the shortest marketing distances to raise the efficiency of the marketing process. The first scenario showed that the quantity expected to be transferred to the deficit governorates is about 632.5 thousand tons, representing 19.7% of the total production expected at the governorate level during the year 2025, and in light of this model, it is expected that The lowest cost of transportation is about 131.85 thousand monetary units/km/thousand tons. The second pessimistic scenario showed, the average quantity expected to be transferred to the deficit governorates during 2025 is estimated at 715.84 thousand tons, representing about 30.7% of the total production of the governorates of the Republic during the year 2025, and the lowest cost of transportation is estimated at about 148.204 monetary units/km/thousand tons. The third optimistic scenario showed, the average quantity expected to be transferred to the deficit governorates is estimated at 536.835 thousand tons, representing about 12.32% of the average of the total governorates of the republic, and the lowest cost of transportation is estimated at 79.707 thousand monetary units/km/thousand tons. The study recommended application of the proposed transport and distribution system between the governorates.}, keywords = {Transportation Model,Fish consumption,Local fish production,Average per capita fish production,Production deficit,surplus production,population growth rate}, url = {https://jsas.journals.ekb.eg/article_192540.html}, eprint = {https://jsas.journals.ekb.eg/article_192540_340ec8550bdb84a503e12d8e4b03f4ea.pdf} } @article { author = {Tawfeek, Fouad and Salim, Ibrahim}, title = {IMPACT OF N-ACETYLCYSTEINE ON PRODUCTIVE, REPRODUCTIVE AND PHYSIOLOGICAL PERFORMANCE OF LOCAL CHICKENS UNDER EGYPTIAN SUMMER CONDITION}, journal = {Journal of Sustainable Agricultural Sciences}, volume = {47}, number = {4}, pages = {27-43}, year = {2021}, publisher = {The National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology(ASRT)}, issn = {2536-9571}, eissn = {2536-958X}, doi = {10.21608/jsas.2021.89141.1304}, abstract = {The present study was carried out to evaluate whether N-acetylcysteine (NAC) has a beneficial role in enhancing productive and reproductive performance in Inshas layer hens under Egyptian summer conditions. A total number of 300 Inshas hens and 30 Inshas cocks, 34 weeks of age were randomly distributed into 5 groups of 60 hens and 6 cocks each and then subdivided into six replicates (10 hens + 1 cock/ replicate). The first group (G1) was served as the control group without any administration and was injected with water only. The second and the third groups (G2 and G3) drank water supplemented with 50 and 100 mg NAC / litter, respectively, while the fourth and the fifth groups (G4 and G5) were injected with 50 and 100 mg NAC / kg BW, respectively, first three days every month for three months (the experimental period). The obtained results showed that treatment with NAC significantly increased egg production percentage, whereas birds injected with 100 mg NAC/ kg BW recorded the highest value, as compared with those in the control group (68.69 vs. 51.39%, respectively, P}, keywords = {N-acetylcysteine,laying hens,blood metabolites,antioxidant,Egg production,egg quality,economic efficiency}, url = {https://jsas.journals.ekb.eg/article_192565.html}, eprint = {https://jsas.journals.ekb.eg/article_192565_2be98ff8e1b5471b004a6e92a9fb0e06.pdf} } @article { author = {Bahloul, Asmaa and Ahmed, Mahmoud}, title = {Estimation the Almost Ideal Demand System for Egyptian Potatoes Exports in the Most Important Foreign Markets}, journal = {Journal of Sustainable Agricultural Sciences}, volume = {47}, number = {4}, pages = {429-443}, year = {2021}, publisher = {The National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology(ASRT)}, issn = {2536-9571}, eissn = {2536-958X}, doi = {10.21608/jsas.2021.86404.1297}, abstract = {The Potatoes crop is one of the most important vegetable crops, which occupies a high position of Egyptian agricultural exports, but the statistics indicated a fluctuation and a small percentage of exports from it to Production. The research problem represented: the instability of Egyptian Potatoes exports and the low rates of growth compared to the local production of it, which requires studying the determinants of Potatoes demand and its competitiveness in the export markets. The research aims to: Identify the competitive situation of the study crop in the most important foreign markets for it, by estimating the demand function for exports of this crop to determine the most important factors affecting it. the most important results: The results of the Almost Ideal Demand System indicate that The price elasticity of demand for the Egyptian potato crop in the Russian market indicates that a change in its price by about 1% leads to a decrease in the quantity demanded on it by about 1.049%, And that the price elasticity of demand for the Egyptian potato crop in the Greek market indicates that a change in its price by about 1% leads to a decrease in the quantity demanded on it by about 1.009%, And that the price elasticity of demand for the Egyptian potato crop in the Italian market until a change in its price by about 1% leads to a decrease in the quantity demanded on it by about 0.347% in the Italian market.}, keywords = {Almost Ideal Demand Model,Price Elasticity of demand,Cross Elasticity of Demand,Elasticity of Expenditure,potatoes Exports and Imports. Foreign Markets,Potatoes,Imports,Quantity demanded}, url = {https://jsas.journals.ekb.eg/article_192547.html}, eprint = {https://jsas.journals.ekb.eg/article_192547_88cebd81dd55602397f3ecef559313f7.pdf} } @article { author = {Shahein, Alaa and Shalaby, Nagwa}, title = {Longevity of maize seed (Zea mays L.) under different storage conditions}, journal = {Journal of Sustainable Agricultural Sciences}, volume = {47}, number = {4}, pages = {45-55}, year = {2021}, publisher = {The National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology(ASRT)}, issn = {2536-9571}, eissn = {2536-958X}, doi = {10.21608/jsas.2021.88439.1300}, abstract = {This study focuses om the changes in viability and chemical composition of maize hybrid SC168 during storage conditions. This study was conducted at the Seed Technology Department, at Sakha Agricultural Research Station, ARC, Egypt during November-2018 to April-2020. Storage conditions were two storage periods 6 and 18 months, four regimes of relative humidity, 46%, 65%, 72% and 80% and three package materials i.e. jute bags, low density polyethylene and hermetic bags. The results revealed that increasing storage period from after harvest to 6 and 18 months led to the increasing in deterioration of the viability and quality of the seeds and caused the highest of electrical conductivity, acidity% and moisture content in the seeds storage. Increasing relative humidity from 46 to 80 % significantly increased the mean value of electrical conductivity of the seed soak water (from 5.12 to 11.41 mS m-1), moisture content and acidity%, and significantly decreased the mean seed germination %, shoot length, root length, seedling dry weight, oil% and crude protein %. Hermetic bags gived high seed germination, seedling vigor and oil % and low seed moisture content, electrical conductivity and acidity %, and therefore they could delay seed quality deterioration compared with low density polyethylene and jute bags and that in conditions of high relative humidity for a period longer than six months. Finally, we can recommend the use of hermetic bags to maintain the vitality and quality of maize seeds under high relative humidity conditions for a period of up to 18 months.}, keywords = {Humidity,Packages,periods,Storage,viability,Chemical composition,Maize}, url = {https://jsas.journals.ekb.eg/article_201823.html}, eprint = {https://jsas.journals.ekb.eg/article_201823_e82892c23f1b3ec8586da11acc7a088f.pdf} } @article { author = {Elgazzar, Mohamed and Elhamoly, Adel and Elshafei, Abedelalim and Nada, Sahar}, title = {Use of the Extension Workers Social Media in Extension Work at some Egyptian Governorates}, journal = {Journal of Sustainable Agricultural Sciences}, volume = {47}, number = {4}, pages = {445-459}, year = {2021}, publisher = {The National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology(ASRT)}, issn = {2536-9571}, eissn = {2536-958X}, doi = {10.21608/jsas.2021.89132.1303}, abstract = {This research aims to identify the use of social media by extension workers in the agricultural extension work in some Egyptian governorates. Three governorates were selected: Kafr El-Sheikh, Gharbia, and Beheira, where the extension workers included 463 respondents, the sample size was (210) respondents distributed proportionally over these governorates. The most important results were: That 28.8% of the respondents do not use social media in counseling work, and that 69.2% of them use social media in counseling work ranging from low to medium. 33.3% of them are not satisfied with their use of it in the extension work, and 64.2% of them range from low to medium satisfaction with their use of it in the extension work. The most important justifications for their use of it were: access to the largest number of beneficiaries in a short time, the possibility of repeating the dissemination of the message more than once to farmers, and the diversity of social media via mobile phones. The most important benefits of their use of social media in extension work were: the speed of receiving messages from researchers, extension workers and rural leaders and allowing researchers, extension workers and rural leaders to communicate with their colleagues anywhere. It was found that there are three independent variables that have a significant effect on the degree of respondents’ use of social media in agricultural extension work: knowledge of social media, tendency toward using social media in extension work, and trend toward using social media in extension work.}, keywords = {Extension,Workers,social media,facebook,Watsapp,YouTube,Twieter}, url = {https://jsas.journals.ekb.eg/article_192561.html}, eprint = {https://jsas.journals.ekb.eg/article_192561_bc350f9924268a644ab910a2b17fd1df.pdf} } @article { author = {Mostafa, Ahmed and Amer, Ahmed and Amer, Salah}, title = {Problems facing agricultural extension workers and their suggestions to overcome them in Kafr El-Sheikh Governorate}, journal = {Journal of Sustainable Agricultural Sciences}, volume = {47}, number = {4}, pages = {461-471}, year = {2021}, publisher = {The National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology(ASRT)}, issn = {2536-9571}, eissn = {2536-958X}, doi = {10.21608/jsas.2021.87757.1299}, abstract = {This research mainly aimed to identify the problems facing agricultural extension workers and their suggestions to overcome them in Kafr El-Sheikh Governorate. A regular random sample of 20% of the total extension specialists working in Kafr El-Sheikh Governorate was selected, and it consisted of (30) extension specialists, and (118) agricultural extension agents. Several statistical methods were used: frequencies, percentage, arithmetic mean, standard deviation, and weighted mean, using the statistical program SPSS Version 16 to analyze the research data, and the most important results were: In the extension work department, which is related to the extension work areas, which are related to extension workers, and which are related to the extension workers, these problems have been arranged according to their relative importance from the point of view of the surveyed agricultural extension workers, the problems related to extension work fields came in the first order, followed by those related to extension workers , then related to the management of extension work, then related to the audience of the guides with a weighted average of 2,229, 2,067, 2,056, 1,99 7 respectively.}, keywords = {Problems Facing,Agricultural,extension workers,and,their suggestions,to overcome them,in,Kafr El-Sheikh Governorate}, url = {https://jsas.journals.ekb.eg/article_192564.html}, eprint = {https://jsas.journals.ekb.eg/article_192564_c0270b391a99cc9e94f8c8b383bf93bb.pdf} } @article { author = {Salem, Fatheya and Eladawy, Roshdy and Al-Nafili, Al-Hussaini and Zaki, Om Hashim}, title = {The impact of the exchange rate liberalization on the economics of the Maize crop}, journal = {Journal of Sustainable Agricultural Sciences}, volume = {47}, number = {4}, pages = {473-484}, year = {2021}, publisher = {The National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology(ASRT)}, issn = {2536-9571}, eissn = {2536-958X}, doi = {10.21608/jsas.2021.82369.1292}, abstract = {The study aims to analyze and estimate the impact of the liberalization of the exchange rate on the corn crop during the period (2000-2019), and the results showed that the cultivated area increased by an annual amount of 30,475 thousand feddans, and it was also found that the farm price, total revenue, total costs, and net return  It increased by 0.083, 0.089, 0.105, and 0.056 pounds/feddan, respectively, while it was found that human labor, automated service, seed price, municipal fertilizer, chemical fertilizer, pesticide price, and rent increased by an annual rate of 0.120,  0.101, 0.088, 0.088, 0.091, 0.106, 0.097 pounds / feddan, respectively, and by studying the impact of the exchange rate on the economic indicators of corn, it was found that it had increased from the first period (2013/2015) to the second period (2017/2019) at a rate of change of 43.02%  , 86.83%, 46.58%, -16.76%, 73.78%, 88.6%, 72.43%, 52.25%, 79.27%, 136.4%, 72.02% for each of the farm price, total revenue, total costs, and net return, human labor, automated service  The price of seeds, municipal fertilizer, chemical fertilizer, pesticide price, rent, respectively, and a study (the effect of passing) during the period (2000-2009-2010-2019) It was found that the rise in the exchange rate of the US dollar against the Egyptian pound by one pound led to a rise in the import price of the total corn crop about 4.32 pounds, and the results of estimating the exchange rate model on the import price showed a positive relationship, as it was found that the increase in the exchange rate  By 10% leads to an increase in the import price of corn by 3.6%, as it was found that there is no causal relationship between the exchange rate and the import price of corn.}, keywords = {exchange rate,Corn yield,rate of change,pass-through effect,causation,economic and productivity indicators}, url = {https://jsas.journals.ekb.eg/article_192574.html}, eprint = {https://jsas.journals.ekb.eg/article_192574_12f1398673e927698beb09232522cc38.pdf} } @article { author = {شمس الدين, محمد and Abdel-Rahman, mahmoud and رميح, يسري and Allaboudy, Salma}, title = {Building a scale of rural women socio-economic empowerment in Kafr El-Sheikh Governorate: An Exploratory factor analysis}, journal = {Journal of Sustainable Agricultural Sciences}, volume = {47}, number = {4}, pages = {509-521}, year = {2021}, publisher = {The National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology(ASRT)}, issn = {2536-9571}, eissn = {2536-958X}, doi = {10.21608/jsas.2021.96023.1314}, abstract = {This research aimed to building a scale for the level of socio-economic empowerment of rural women in Kafr El-Sheikh Governorate, and to extract its validity and reliability indications. The necessary data were collected from a random sample of 377 female respondents. The data were analyzed using methods of exploratory factor analysis and descriptive statistics and using IBM SPSS 26. Based on the arbitrators' opinions, (47) out of (66) items were retained, which obtained an agreement rate of 80% or more. The results of the exploratory factor analysis resulted in eight factors that were saturated with 36 items. So, the final form of the scale consisted of 36 items and eight dimensions. The scale was reliable with Cronbach’s α for the total scale was 0. 754, which reflect acceptable reliability indicator. The results also showed that the overall average level of the socio-economic empowerment of rural women was moderate. The dimension of work and obtaining the necessary financing for its productive projects came in the first place, followed by the dimension of private ownership to increase the economic level, managing family affairs, making family decisions, economic independence, self-reliance and self-confidence, competitiveness, and finally making productive decisions. The study concluded that the scale can be trusted in revealing the level of socio-economic empowerment of rural women. The study recommended applying the scale to other samples to verify its properties.}, keywords = {Building,a scale of,Rural Women,Socio-economic,empowerment,in kafr el-sheikh,governorate}, url = {https://jsas.journals.ekb.eg/article_201824.html}, eprint = {https://jsas.journals.ekb.eg/article_201824_ebcb809f3aa4f5bf7b49e0b7b0524efb.pdf} } @article { author = {Salem, Fatheya and Eladawy, Roshdy and Al-Nafili, Al-Hussaini and Zaki, Om Hashim}, title = {The impact of exchange rate liberalization on the most important cereal crops in Egypt (wheat)}, journal = {Journal of Sustainable Agricultural Sciences}, volume = {47}, number = {4}, pages = {485-497}, year = {2021}, publisher = {The National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology(ASRT)}, issn = {2536-9571}, eissn = {2536-958X}, doi = {10.21608/jsas.2021.82374.1293}, abstract = {The study aims to analyze and estimate the impact of the exchange rate liberalization on the wheat crop during the period (2000-2019), and by studying the development of productive and economic indicators of the wheat crop, it was found that the cultivated area and production increased by an annual amount of 0.022 million feddans and 0.018 million tons, respectively.  The farm, total costs, total revenue, and net return increased by 0.101, 0.110, 0.099, 0.074 pounds / feddan, respectively, while it was found that human work, automated service, seed price, municipal fertilizer, chemical fertilizer, pesticide price, rent increased by Annual amounted to 0.122, 0.108, 0.112, 0.098, 0.103, 0.118, 0.114 pounds/acre.  By studying the impact of the exchange rate on economic indicators during the period (2013-2019), it was found that the first period (2013/2015) increased from the second period (2017/2019) with a change rate of 47.73%, 97.05%, 44.81%, -22.1%, 70.43%, 104.29%, 100.24%, 144.84%, 69.89%, 32.32%, 175.25% for each of the farm price, total costs, total revenue, net return, human labor, automated service, seed price, municipal fertilizer, chemical fertilizer, pesticide price, Rent on order.  By studying (the effect of passing) during the period (2000-2009/2010-2019), it was found that the increase in the exchange rate of the US dollar by one pound led to a rise in the import price of the wheat crop by about EGP 1.99.  It was found that an increase in the exchange rate by 10% leads to an increase in the import price of wheat by 2.9%. It was also found that there is a one-way causal relationship between the exchange rate and the import price of wheat. The study recommends 1 - that the increase in total costs at a rate of change of about .97.05% led to a decrease in the net return at a rate of -22.1% for wheat, so it is necessary to establish parallel policies between input and output prices in the agricultural sector, with a tightening of the supervisory role, especially on prices production supplies.}, keywords = {exchange rate,Wheat yield,rate of change,pass-through effect,causation,normal distribution,residuals of the model}, url = {https://jsas.journals.ekb.eg/article_192576.html}, eprint = {https://jsas.journals.ekb.eg/article_192576_07e4cd35458fa4f26c245606ef38b353.pdf} } @article { author = {elsafty, Mohamed and mehana, Mohamed and Abdel Hamid, Mohamed}, title = {Economic efficiency of rice production in Kafr El-Sheikh Governorate}, journal = {Journal of Sustainable Agricultural Sciences}, volume = {47}, number = {4}, pages = {499-507}, year = {2021}, publisher = {The National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology(ASRT)}, issn = {2536-9571}, eissn = {2536-958X}, doi = {10.21608/jsas.2021.95834.1312}, abstract = {The research was mainly aimed at studying the economic and technological efficiency of using resources in the production of summer rice crops. The results showed a decrease in the area under cultivation and rice production in Egypt during the period 2000–209 with a statistical annual statistical decrease of 1.4%, 1.5% each respectively, while the statistical The results of the production indexation showed that the productive flexibility of the resources of both human work, Automation, nutro fertilizer, and phosphate fertilizer are positive, with productivity flexibility: 2.178, 0.886 0, 0.221 and 0.048 per cent respectively.An increase of these elements by 10% results in the acoustic The economics of both human work, labour, nutro fertilizer, phosphate fertilizer were positive, with an estimated 23.792, 11.011.4.526, 4.225 each respectively, indicating that farmers have increased their production by increasing the use of those resources. While the economic efficiency of the seeding element was found to be negative, it was about 1.423 indicating the uneconomic use of this resource.}, keywords = {Rice Production,Production costs,Technological efficiency,economic efficiency,Production function,Rice crop,Kafr El-Sheikh}, url = {https://jsas.journals.ekb.eg/article_201826.html}, eprint = {https://jsas.journals.ekb.eg/article_201826_b13aaabfbdea2825d69306656caa0966.pdf} }