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The safe re-use of wastewater for agriculture is a desired goal in many arid zone countries. The potential of greywater as alternative irrigation source for vegetable crops was investigated. To-mato, pea and cantaloupe plants were drip irri-gated with both fresh Nile water and greywater to access the impact on yield production and asso-ciated environmental and health risks. The biolog-ical properties of the two different sources of wa-ter clearly indicated that greywater was extremely higher in
2015
Abd El-Hamed, K. E. | Elwan, M.W. M. | Abd El-Azeem, S.A. M. | Rashad, M. A.
The safe re-use of wastewater for agriculture is a desired goal in many arid zone countries. The potential of greywater as alternative irrigation source for vegetable crops was investigated. Tomato, pea and cantaloupe plants were drip irrigated with both fresh Nile water and greywater to access the impact on yield production and associated environmental and health risks. The biological properties of the two different sources of water clearly indicated that greywater was extremely higher in bacterial content compared with fresh Nile water. Pea plants showed significantly higher yield irrigated with fresh Nile water, however, tomato and cantaloupe plants gave significantly higher yield irrigated with greywater. Generally, the coliform populations in untreated greywater irrigated plants were higher than those irrigated with Nile water in all tested vegetables. The percentages of increasing in total coliform in untreated-irrigated greywater vegetables were 27.95%, 34.55% and 41.4% for pea, tomato and cantaloupe (averaged over outer and inner fruit tissues), respectively. Unexpectedly, central part of fruits for pea and tomato had highest coliform counts when compared to the outer surface using both Nile and untreated greywater. Overall, irrigation with greywater increased soil bacterial content by 15% while fresh Nile water increased it by 13% at the end of the experiment. In addition, greywater elevated the content of soil total coliform by 52% where fresh Nile water increased it by 30%. The results of this study indicated that untreated greywater should not consider as an alternative irrigation source for edible crops such as vegetables. In current investigation, the beneficial effects in tomato through giving significantly higher yield with greywater became worthless after the enormous fecal contamination that was detected in fruits. Several considerations must be adopted to minimize the health and environmental risks associated with greywater reuse in irrigation of vegetable crops.
Показать больше [+] Меньше [-]FACTORS ASSOCIATED WITH KNOWLEDGE AND PRACTICE GAPS OF FISHERMEN IN LAKE BURULLUS IN KARF EL SHEIKH GOVERNORATE OF FISHING LAW NO (124) OF 1983
2015
Zeinab Abd El-Rahman
The main research objective was: to identify Knowledge and practice Gaps of fishermen in Lake Burullus regarding fishing Law Number (124) of 1983 through achieving objectives: idintifing the level of Knowledge and practice Gaps of fishermen, Identifying the relationship between Knowledge gaps and independent variables, Identifying the relationship between practice gaps and independent variables, Identifying the contact degree between fishermen and extension sources. To achieve the goals of research was selected a sample of 110 fishermen from a central Balteem and Sidi Salem at random from among fishermen obtaining fishermen card, data has been through a questionnaire to collect personal interview during the month of March 2013, and was used the following statistical methods: frequencies, percentages, and the coefficient of the simple Pearson correlation were used to analyze data. The main results of the research were: medium level of Knowledge gaps of all items (50 item) studied law for (53.6%) respondents, while the practice gaps were a medium for more than half of the respondents about (62.7%) respondents. There was a significant relationship between the Knowledge gaps and the following dependent variables: education, experiance, membership in organizations, frequencies on Urban centers, degree of exposure to media, degree of social participation and Knowledge sources. There was a significant relationship between the paractice gaps and the following dependent variables: Training, frequencies of Urban centers, membership in organizations, social participation, exposure to media, and Knowledge sources. There was low contact degree between fishermen and extension source (Extension Center, symposium, meetings and guidance on the Law No. 124 fishing, research institute, authority General wealth Fisheries Development and Cooperative Union of wealth water sources.
Показать больше [+] Меньше [-]AN ECONOMIC STUDY OF THE EFFICIENCY OF RESOURCES USE IN AQUACULTURE AT Sahl- El Tina AREA
2015
Rafaat Mustafa
The problem of the study in the presence of limited and the fragility of the economic resources and human potential in the agricultural desert communities developing, especially in the beginning of the configuration, including Sahl El -Tina area in Sinai, the study aims to identify the efficient use of resources in the activity of fish farming as agricultural activities was80 farms randomly selected, Sample divided into two category, first category (less than 10 acres) a represents about of 50 farms, Second category (10 acres or more) a representsabout30 fish farmers. The study reached the following results: - The average net return per acre of aquaculture capacitive initial production amounted to about 7, 19 thousand pounds / acre, while at about 11, 94 thousand pounds / acre capacitive productivity second. - The average net value added of aquaculture capacitive initial production amounted to about 61, 88 thousand pounds, while amounted to about 240, 5 thousand pounds capacitive productivity second. - The rate of return on invested capital capacitive initial production amounted to about 28, 92%, and about 36, 2% and the second capacitive productivity that is higher than the yield of the opportunity cost of the investment, which indicates an increase in economic efficiency of the activity of fish farming. - It turns out that the average capital recovery capacitive productivity initial period of approximately 3,4 years, and the second capacitive production amounted to about 2,76 years which shows the high economic efficiency and productivity for the second capacitive production capacity initial sample study. -Through the study of fish farms sample study problems The main problems in the feed, seed, labor, marketing, security, licensing, financing, site location, and management and through the results of the Likert scale show that the feed problem comes in first in terms of relative importance, followed by the arrangement respectively problem of seed, labor, marketing, security, licenses, while showing low relative importance to the problems of financing, location, and management as the relative importance of each one degree lower than the overall average for the total score.
Показать больше [+] Меньше [-]FOURIER TRANSFORM INFRARED SPECTROSCOPY TECHNIQUE FOR DETECTION OF HONEY AUTHENTICATION
2015
Mehaya, F. M. | Mohie M. Kamil | Ashoush S. | Khalil I.
Physico-chemical properties of honey and honey samples adulterated with glucose or sucrose were determined. Total soluble solids (TSS), pH and electrical conductivity of honey and its adulterated samples ranged between (84.10-84.50%), (3.80-4.63) and (11.73 – 232.32µS), respectively. Sensory properties of honey and its adulterated samples showed that, no differences in the sensorial properties were found in authentic honey and honey adulterated with 25% sucrose or 25% glucose. Increasing adulteration ratio to 50% glucose decreased taste, flavor, color and general appearance, while adulterated honey with 50% sucrose caused significant decrease in taste and general appearance. The possibility of using HPLC to detect adulteration of honey through determining their sugars content was evaluated. The obtained results indicated that, authentic honey was characterized with its higher fructose/glucose ratio (1.21) compared to adulterated honey samples (ranged between 0.35 - 0.94). FT-IR spectroscopic technique was used to evaluate honey quality. Reliability FT-IR for quantitative and qualitative analysis of sucrose, glucose and fructose were evaluated. The main FT-IR spectral bands of sucrose, glucose and fructose were identified at different concentration levels. The relationship between sugars concentration (sucrose, glucose and fructose) and its spectral bands absorbance (peak height) were evaluated to prepare sugars standard curves and their linear equations. Selected main peaks of sucrose, glucose and fructose provide the best calibration model with correlation coefficient (r2) higher than (0.9). Honey samples adulterated with glucose were characterized with specific spectral peaks, in which the absorbance was increased by increasing the ratio of adulteration with glucose at 1087, 1105, 1189 and 984 cm-1, while the adulteration with sucrose lead to increase in the absorbance of spectral bands of sucrose as 1054, 1149 and 984 cm-1 especially in honey adulterated with 50 % sucrose.
Показать больше [+] Меньше [-]ECONOMIC RETURN FOR WASTE RECYCLING IN EGYPT (A CASE STUDY OF RECYCLING AGRICULTURAL WASTE)
2015
Rafaat Mustafa
The problem of the search in the presence of large amount of waste is estimated at 74.7 million tons, including agricultural residues, which are estimated at about 23.9 million tons, representing about 32% of the total waste in Egypt without the benefit of full economic, which lead to the waste of economic resources, the study aims to attempt to shed light on the economic efficiency to Recycle agricultural residues to maximize economic benefit the study to the most important results: - Through the study of economic efficiency indicators to manufacture Tons of unconventional fodder of some agricultural residues indicate that the economic feasibility, where the average net revenue secondary outputs crops referred to was about 85,38 pounds (tons and net revenue crop residues of maize production reached a maximum of about 147,5pounds (tons, followed by net revenue remnants of rice crop, cotton, sugar beet, municipal beans about 77.6, 72.2, 69, is 60.6 pounds per ton, respectively. The average profitability of the pound investor secondary outputs of crops referred to was about 0.29 pounds. - The manufacture of organic manure (compost) of agricultural residues of economic feasibility, where the average net revenues of outputs secondary crops referred to hit about standing at 118.6 pounds (tons and net return on remnants of rice crop reached a maximum of about 141 pounds (tons, followed by net revenue crop residues of rice, maize, beans, municipal cotton, sugar beet, about 77.6, 72.2, 69, is 60.6 pounds per ton, respectively. - To examine economic efficiency indicators to rotate tons organic fertilizers from animal waste indicate that the economic feasibility, where it was found that net revenues recycling reached about 154.8 pounds (tons). The study recommended that: - The possibility of making use of agricultural residues and treated to produce organic fertilizers, as a substitute for traditional fodder caravan of chemical fertilizers, and fodder expensive traditional crops estimate net revenue recommends rotating the sample conversion of remnants of corn, rice, cotton to feed non-traditional and rotate remnants of rice, maize, beans to municipal organic fertilizer, where they win economically. - Attention to economic development programs for the recycling of waste and encourage recycling of agricultural waste industry. - Wider dissemination of waste recycling technology through awareness in charge of this process, the economic importance of re-use of these residues.
Показать больше [+] Меньше [-]A STUDY FOR VISION OF AGRICULTURAL EXTENSION WORK TO REDUCE THE DEGRADATION OF AGRICULTURAL SOILS IN MATROUH GOVERNORATE
2014
Samia Mahrous
The recent study aims to: identify a vision of agricultural extension work to reduce the degradation of agricultural soils, and determine the relationship between the independent variables studied, and the degree of vision of agricultural extension work to reduce the degradation of agricultural soils and identifying the farmer's suggestion to reduce Soil degradation. The study was conducted in Siwa Oasis in Matrouh Governorate. Data were collected through the personal interview with a systematic random sample of 148 farmers in Siwa Oasis using a questionnaire. Frequencies, per- centages and simple correlation coefficient (Pearson) were utilized to present and analyze data. The most important findings were: 29.4% of the respondents had a low level knowledge of reducing Soil degradation technical recommendation. The fending also indicated significant correlation at 0.01 level between the degree of agricultural extension work vision to reduce Soil degradation and the following variables: the respondent's education level, the degree of tribal leadership and the degree of tribal affiliation. There were significant correlations at 0.05% level between the same dependent variable and: area agricultural holdings and period of experience work in agricultural. There were non significant correlation between dependent variable and: age and size of the possession of agricultural animals.
Показать больше [+] Меньше [-]DEVELOPMENT OF INNOVATIVE BEVERAGE BASED ON MILK PERMEATE FORTIFIED WITH DRIED LEAVES OF Moringa oleifera
2014
Wafaa Salama | Aida Salem | Eman Yousef
This study was carried out to produce milk permeate beverage fortified with dried leaves of Moringa oleifera (DLMO) as innovative beverage. DLMO was added to permeate at concentrations of 0.5, 1 or 2%. Subsequently, the physiochemical, microbiological and organoleeptic properties of freshly innovative beverage and after 3, 7 and 10 days of storage at 5 ±25C were examined. Addition of DLMO had significantly increased the total solids, protein, carbohydrate and ash contents of beverage. Acidity values increased gradually in all treatments during storage period. Bifidobacteria counts were higher in innovative beverages fortified with DLMO compared to control during storage period (10 days). Mould&yeast and coliform bacteria were not detected in innovative beverage when fresh and till the end of storage. Innovative beverage fortified with DLMO can be considered a good source of minerals (K, Ca, Mg and Fe) for human nutrition. The results indicated that innovative beverage fortified with DLMO contained higher essential and non essential amino acids compared to control. Organoleptic properties of innovative beverage fortified with DLMO were highly acceptable during storage period.
Показать больше [+] Меньше [-]EFFECT OF DIFFERENT ACETIC ACID CONCENTRATIONS ON MICROBIAL QUALITY, COLOUR STABILITY, AND SENSORY ACCEPTABILITY OF BEEF SHAWARMA STORED UNDER REFRIGERATED CONDITIONS
2014
Nadia Abd-El-Aziz
Effect of using different concentration of acetic acid (5, 7.5, 10 and 12.5%) on microbiological quality, pH, lipid oxidation and sensory properties of beef shawarma during storage at 4°C for 16 days were examined in this study. The results showed that addition of acetic acid at 10% concentration reduced and retard the growth of total number of microorganisms by one log cycle, prevented the growth of Enterobacteriaceae, Coliform, E. coli , Psychrotrophic bacteria, and Staphylococcus aureus . in beef Shawarma during storage at 4°C for 16 days. Both pH (6.1 to 6.14) and TBA (0.056-0.97 malonaldhyde absorbance /kg oil) did not much affected with increasing the concentration of acetic acid added to beef Shawarma. Meanwhile the increasing of acetic acid concentration caused a noticeable reduction in redness, slight changes in wave length, purity, visual density and brightness of beef Shawarma colour. Panelists showed that the dark grayish colour, sourish aroma, sourness taste, toughness texture of cooked beef Shawarma increased with increasing acetic acid concentration added to this product. Storage at 4°C for 16 days caused slight changes in the above measured properties.
Показать больше [+] Меньше [-]ECONOMIC ANALYSIS OF THE MOST IMPORTANT TECHNOLOGY PRACTICES OF SUGAR BEET PRODUCTION
2014
Heba F. Mohamed
Sharkia Governorate characterized by environmental and agricultural characters suitable for the production of sugar beet crop that making it one of the most important production areas in Egypt. Despite the importance of sugar beet crop as an economic crop for production of sugar, it has not taken enough attention to address the technology gap prevailing between researchers and producers in the employment of agricultural productivity resources to achieve the economic efficiency and that reduces faddan productivity and its return. This requires evaluating package of current agricultural practices affecting the productivity of the crop. So, the study used some economic criteria and statistical methods that achieve the objectives of the study and enhance the results such as correlation and regression procedures, change partitioning method and crop budget. The study was based on a field random sample of thirty farms in the province of Awlad Saker .. The study showed that the most important quantitative variables affecting the average production per faddan of sugar beet are the amount of nitrogen fertilizer, phosphate fertilizer amount, seed amount, the amount of irrigation water where the combination of these factors contribute about 84% of the total quantitative factors affecting crop production. Also, the most important qualitative productive variables affecting the average productivity of the crop are number of hoeing times, the distance between hills and planning rate where these factors contribute about 64% of the total qualitative factors affecting the productivity of that crop. Then the most important quantitative and qualitative factors affecting average production per faddan of sugar beet are the amount of nitrogen fertilizer, phosphate fertilizer amount, amount of irrigation water, the distance between hills, number of thinning times, where these factors contribute by 83% of the total factors affecting the sugar beet crop production. The study shows lack of commitment by producers of sugar beet recommendations of the Ministry of Agriculture with respect to quantitative and qualitative technology practices where the amount of the technological gap between the recommendations of researchers and practices of farmers for the row width about 4.32 tons/ faddan, number of times of thining 6.8 tons/ faddan, number of times of hoeing 6.63 tons/ faddan, number of times irrigation 3.26 tons/ faddan, the distance between hills 5.5 tons/ faddan, planning rate of 1.5 tons/ faddan for farmer experience, 2.5 tons/ faddan, number of times of replanting 0.57 tons/ faddan. The total monetary value of these gaps is around 1501.65 pounds, 2414 pounds2353.65 pounds, 1157.3 pounds, 1952.5 pounds, 532.5 pounds, 887.5 pounds, 202.35 pounds, respectively. Therefore, the study recommends using the technological recommendations package of agricultural practices according to the research recommendations, with a focus on the most important factors affecting the productivity of the sugar beet crop, to reduce the gap between research recommendations and farmers' practices.
Показать больше [+] Меньше [-]THE EFFECT OF BIO-FERTILIZERS AND AMINO ACIDS ON TOMATO PRODUCTION AND WATER PRODUCTIVITY UNDER NET-HOUSE CONDITIONS
2014
Hasanein, N. M. | Abdrabbo A. | El-Khulaifi K.
The present study was carried out during two successive seasons, 2011/2012 and 2012/2013, at the Agricultural Research Station; El-Otouria, Sheehaniya, Doha, Qatar; to investigate the response of two tomato cultivars (Isabella and Milas) to biofertilizers and amino acids. Two biofertilizer treatments, rizobacterien at a rate of 2 and 4 liter per feddan and one of amino acid (Delfan) at a rate of 200 ppm, were used. Chicken manure, at a rate of 10 tons/ feddan, was the control treatment. Results showed the superiority of Isabella compared to Milas in terms of vegetative growth and fruit yield. Using Rizobacterien at a rate of 4 liter/feddan plus Delfan (amino acids) at a rate of 200 ppm increased growth and fruit chemical characters, earliness and total yield. The average fruit weight per plant was significantly high under Rizobacteria at a rate of 4 liter/feddan plus Delfan (amino acids) at a rate of 200 ppm. The lowest vegetative growth, fruit and yield characters were obtained from Rizobacteria at a rate of 2 liter/feddan. The water productivity results showed that all treatments led to the increase of fruit yield. Isabella cultivar had higher water productivity than Milas cultivar. Using of Rizobacterien at a rate of four liter/feddan also increased the water productivity. The same trend was obtained by using Delfan at a rate of 200 ppm. Concerning water productivity, Isabella cultivar had higher water productivity 16.7 and 17.2 kg of tomato fruits per cubic meter of irrigation water (m3) compared with Milas cultivar which produced15.9 and 16.5 kg tomato fruits per cubic meter of irrigation water for first and second seasons, respectively. Isabella cultivar plus amino acid (Delfan) gave the highest water productivity 19.1 and 19.7 kg of tomato fruits per m3 water for first and second seasons, respectively compared the other treatments.
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