Alexandria Science Exchange Journal最新文献_第8页

Changes in Phosphorus Fractions and its Availability Status as Affected by Appling of Bio and Mineral Fertilizers in The Calcareous Soils 施用生物和矿物肥对钙质土壤磷组分及其有效性的影响

Alexandria Science Exchange Journal Pub Date : 2023-09-30 DOI: 10.21608/asejaiqjsae.2023.318485

Eman Abdellatif Mohammed, Ghada Ibrahim

{"title":"Changes in Phosphorus Fractions and its Availability Status as Affected by Appling of Bio and Mineral Fertilizers in The Calcareous Soils","authors":"Eman Abdellatif Mohammed, Ghada Ibrahim","doi":"10.21608/asejaiqjsae.2023.318485","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.318485","url":null,"abstract":"The important main reason to enhance the studied calcareous soil and support changes of phosphorus fractions to reach to availability status for plant uptake. Two kinds of phosphate solubilization bacteria (PSB), ( Lysinibacillus boronitolerans and Bacillus megatherium ) were used to reach this target. The greatest significant results of labile P % in soil were obtained by employing a 75% P with ( L. boronitolerans ) treatment and 75% P with ( B. megatherium + L. boronitolerans ) treatment. The combine (B. megatherium and L. boronitolerans ) treatments with (P 50 ) or (P 75 ) were superior in increasing labile phosphorus compared to other treatment alone. The results revealed that (PSB) treatments and also P rates affect significantly soil pH values compared to control where the highest pH decrease was showed in soil treated with combine (PSB) treatment either with (P 50 ), or (P 75 ). L. boronitolerans produced acidic phosphatase enzyme and produced alkaline phosphatase enzyme. B. megatherium doesn't produced acidic phosphatase enzyme, but produced alkaline phosphatase enzyme. L. boronitolerans produced many kinds of organic acids, while B. megatherium produced all of them except butyric acid. Treatment of 75% P with ( L. boronitolerans + B. megatherium ) gave high results of Spinach lengths, shoot weights, P (%), Chlorophyll A & B, Vitamins A, B, C and E., Nitrogen fixers","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136276971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Economic Study for Determinants Cooperatives Success in New Valley Governorate 新谷省合作社成功决定因素的经济学研究

Alexandria Science Exchange Journal Pub Date : 2023-09-30 DOI: 10.21608/asejaiqjsae.2023.317725

Sally Bawady, Ahmed Hanafy

引用次数: 0

Effect of humic acid and seaweed extract rates on yield and yield components of barley (Hordeum vulgare L.) 腐植酸和海藻提取物用量对大麦产量及产量组成的影响

Alexandria Science Exchange Journal Pub Date : 2023-09-30 DOI: 10.21608/asejaiqjsae.2023.316895

Abdel-Ati, A.S., Saleh, N.A., Rahuma, M.AA.

{"title":"Effect of humic acid and seaweed extract rates on yield and yield components of barley (Hordeum vulgare L.)","authors":"Abdel-Ati, A.S., Saleh, N.A., Rahuma, M.AA.","doi":"10.21608/asejaiqjsae.2023.316895","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.316895","url":null,"abstract":"The present study was carried out at the Agricultural Experiment Farm, Faculty of Agriculture (Saba-Basha), Alexandria University, in 2022/2023 winter season to investigate the effect of humic acid levels (0, 6 and 12 k/fed) as soil application before the first irrigation as main-plot and seaweed extract (0, 3 and 6 l/fed) as foliar application before the second irrigation as sub-plot, on growth, yield, yield attributes and grain protein content of six-rowed barley ( Hordeum vulgare L.), Giza 2000 variety. The experimental design was R.C.B.D. in split plot arrangement using three replicates. Obtained results indicated that increasing both humic acid and seaweed extract levels up to 12 kg/fed and 6 l/fed, respectively, significantly and gradually increased all the studied traits. The tallest plants (80.87 and 78.48 cm), highest number of pikes/m 2 (280.33 and 282.42), highest number of spikelets/spike (47.39 and 46.09), heaviest 1000-grain weight (37.65 and 35.82 g), highest grain yield (4.08 and 3.87 t/fed.), biological yield (9.62 and 9.06 t/fed.), harvest index (42.41 and 42.72 %) and grain protein content (8.70 and 8.88 %) resulted from application both humic acid and seaweed extracts at (12 kg and 6 l/fed.), respectively. Interaction between humic acid and seaweed levels had significant effect on all the studied traits of Giza 2000 barley variety. Combination between 12 kg/fed. humic acid, applied before the first irrigation and 6 l/fed. seaweed extract, sprayed before the second irrigation produced the highest values of the studied characters, except number of spikelets/spike, harvest index and grain protein content.","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136276977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of NAA and Fulvic Acid Spray on Vegetative Growth, Productivity and Fruit Quality of “Taimour” Mango Cultivar NAA和黄腐酸喷施对“泰摩”芒果营养生长、产量和果实品质的影响

Alexandria Science Exchange Journal Pub Date : 2023-09-30 DOI: 10.21608/asejaiqjsae.2023.308356

Mohamed A. Hussien, Emad Abdelall, Esraa Elsyed

{"title":"Effect of NAA and Fulvic Acid Spray on Vegetative Growth, Productivity and Fruit Quality of “Taimour” Mango Cultivar","authors":"Mohamed A. Hussien, Emad Abdelall, Esraa Elsyed","doi":"10.21608/asejaiqjsae.2023.308356","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.308356","url":null,"abstract":"This investigation was conducted on 16-year-old \"Taimour\" mango trees grown in a private orchard located at Tema district, Sohag Governorate, aiming to study the effect of foliar applications of Fulvic acid at (1000, 2000, and 3000 ppm) and NAA at (15, 30, and 45 ppm) on growth, leaf mineral composition, fruit retention, yield, and fruit quality during the 2019, 2020, and 2021 seasons. This experiment was designed and arranged in a complete randomized block design with three replicates per treatment and one “Taimour” mango tree per each. The selected trees (30) received thrice sprays with NAA before flowering, during full bloom, and after fruit set; meanwhile, Fulvic acid was sprayed thrice (before flowering, after fruit set, and one month later). Enhancements in leaf area, chemical composition, fruit retention percentage, yield, and fruit quality materially accompany single and combined applications with the abovementioned concentrations. A significant decline in the percentages of titratable acidity was observed due to the application of the present treatments. Using Fulvic acid was more effective than NAA for enhancing leaf area and its chemical composition. Moreover, using NAA was superior than using Fulvic acid in terms of improving yield, fruit quality, and fruit retention percentage. Using a combination of both materials was preferable to using them separately. The highest values among all parameters were achieved by spraying \"Taimour\" mango trees with 3000 ppm Fulvic acid + 45 ppm NAA followed by 2000 ppm Fulvic acid+ 30 ppm NAA in the three experimental seasons compared with control and other treatments. It can be concluded that foliar application of 3000 ppm Fulvic acid+ 45 ppm NAA is useful in improving the vegetative growth and nutritional status of \"Taimour\" mango trees and produces a high yield with good fruit quality under Sohag Governorate conditions.","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"191 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79616890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Competitive Exports of Egyptian Grapes in The Most Important Countries of The European Union 埃及葡萄在欧盟最重要国家的竞争力出口

Alexandria Science Exchange Journal Pub Date : 2023-09-30 DOI: 10.21608/asejaiqjsae.2023.313368

N. Ahmed, Dina G. Ebrahim, Reham M. Soliman

引用次数: 0

Sustainable Water Research Funding and Water Quality Challenges in Agricultural Practices: An Economic Analysis in Egypt 可持续水研究资金和农业实践中的水质挑战:埃及的经济分析

Alexandria Science Exchange Journal Pub Date : 2023-09-30 DOI: 10.21608/asejaiqjsae.2023.316410

Mohamed Soultan, Yasmen Salah, Mohamed Fathallah, Amr Abedelkader

{"title":"Sustainable Water Research Funding and Water Quality Challenges in Agricultural Practices: An Economic Analysis in Egypt","authors":"Mohamed Soultan, Yasmen Salah, Mohamed Fathallah, Amr Abedelkader","doi":"10.21608/asejaiqjsae.2023.316410","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.316410","url":null,"abstract":"This study sheds light on the significance of enhancing sustainable funding for water research and addressing water quality challenges in agricultural practices through economic analysis in Egypt. The study employed a survey questionnaire targeting researchers from various disciplines. The results revealed a gender distribution of approximately 44.7% female and 55.3% male participants. The study also disclosed university participation percentages, with the University of Alexandria having the highest at 43.5%, followed by Beni Suef University at 19.4%, Zagazig University at 17.6%, and Aswan University at 11.8%. The results further indicated the diversity of researchers' specializations. Regarding funding sources, the study found that around 30% of researchers obtained external funding for their research projects. Funding sources included international donors (46.2%), governmental grants (30.8%), and the private sector (23.1%). The results also highlighted challenges faced by researchers in obtaining funding, and affirmed that 75% of projects made progress due to funding, while 25% were concluded upon achieving financial objectives. A field study was conducted in the Moghra and Wadi Natron regions to measure the impact of salinity (water quality) on agricultural productivity. The outcomes underscored the urgent need for water research funding, as it indirectly affects the increase in agricultural productivity.","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136272215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Assessment of Performance Effectiveness of Agricultural Cooperatives in Egypt: Case Study of Nubariya District 埃及农业合作社绩效有效性评估:以努巴里亚地区为例

Alexandria Science Exchange Journal Pub Date : 2023-09-30 DOI: 10.21608/asejaiqjsae.2023.317324

Basma Saad, Diaa El-Ansary, Sherin Sherif

{"title":"An Assessment of Performance Effectiveness of Agricultural Cooperatives in Egypt: Case Study of Nubariya District","authors":"Basma Saad, Diaa El-Ansary, Sherin Sherif","doi":"10.21608/asejaiqjsae.2023.317324","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.317324","url":null,"abstract":"Egypt has a long history with consumer and producer cooperatives that dates to the late 1950s and till today. Both types of cooperatives are government-owned and operated. While consumer cooperatives evolved smoothly over the years with a significant improvement in effectiveness with the economy gradually switching to a complete market system, producer cooperatives suffer from lack of effectiveness. Farmers complaints about lack of effectiveness of the agricultural cooperatives is a popular debate in Egypt. The main objective of this study is to quantity an effectiveness measure taking into consideration the points of views of the farmers and the cooperative managers. The agricultural cooperatives located in Nasr Canal Command Area of New Nubariya of Egypt are surveyed via personal interviews. Six cooperative managers and two hundred farmers are interviewed face to face. In assessing effectiveness, the study has extended and modified the Robert Elkin and Mark Molitor model. The effectiveness measure modifications resulted in having a measure of the organization’s degree of effectiveness of agricultural cooperatives through the estimation of four indicators: capital (four items), human resources (four items), administrative (four items), and the cooperative objectives fulfillment (fifteen items). Results show overall effectiveness levels below average with ratios of 42.81% and 46.92% for farmers and managers, respectively. The organizational and administrative indicator being the weakest from the farmers perspective. Cooperative managers cited that the indicators of human resources and capital resources to be the weakest. Both the farmers and the managers commonly conformed that the indicator of the cooperative goals fulfillment to occupy first place in impacting effectiveness.","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136276970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determinants of Rural Families Benefiting from Social Protection Arrangements under the “Decent Life” Initiative in ELKom ElAhmar Village, Shebin Elkanater District, Qaliobia Governorate, Egypt 在埃及Qaliobia省Shebin Elkanater区ELKom ElAhmar村，农村家庭受益于“体面生活”倡议下的社会保护安排的决定因素

Alexandria Science Exchange Journal Pub Date : 2023-09-30 DOI: 10.21608/asejaiqjsae.2023.311867

Sally AbdelRahman, Jacinthe Ibrahim, H. Diab, H. Mohamed

引用次数: 0

An Economic Study to Estimate the Almost Ideal Demand for Dried Beans and Dried Onions in the Most Important Foreign Markets 估算国外主要市场对干豆和干洋葱近乎理想需求的经济学研究

Alexandria Science Exchange Journal Pub Date : 2023-09-30 DOI: 10.21608/asejaiqjsae.2023.317087

Wesam Mahmod Khamis, Mahmoud A. E. Suliman

引用次数: 0

Vegetable Seeds Production in Egypt, in Particular the National Program for Vegetable Seeds Production (VSP) 埃及的蔬菜种子生产，特别是国家蔬菜种子生产计划(VSP)

Alexandria Science Exchange Journal Pub Date : 2023-09-30 DOI: 10.21608/asejaiqjsae.2023.309322

E. Zaki, Tarek Mahmoud Mohamed, Ahmed Sayed Abd Elghany

{"title":"Vegetable Seeds Production in Egypt, in Particular the National Program for Vegetable Seeds Production (VSP)","authors":"E. Zaki, Tarek Mahmoud Mohamed, Ahmed Sayed Abd Elghany","doi":"10.21608/asejaiqjsae.2023.309322","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.309322","url":null,"abstract":"The research aims to study the situation of seeds production, foreign trade, and the gap for vegetable seeds, as well as the situation and the achievements of the national program of vegetable seeds production. The research used the descriptive statistics, given the recent launch of the program in 2019. The results reveal that the value of Egypt's vegetables seeds exports and imports represents 6.74% and 55.56% of total seeds exports & imports respectively during 2015-2020, therefore, the gap (deficit) of vegetable seeds was reached an average of LE 761.3 million representing 61.74% of the total value of the deficit for seeds in Egypt. While the national program for VSP achieved during the year 2022, about 0.41% of the total seeds needed to cultivate the crops targeted by the program, and 2.4% of the quantity of imported seeds for these crops. As well as there are 316 breeds of vegetable crop seeds that were produced, 26 of registered hybrids, 17 promising hybrids, 4 hybrids under registration. According to the results achieved, the research presents the following recommendations:","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"233 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77270385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0