Affiner votre recherche
Résultats 611-620 de 1,442
THE ECONOMIC YIELD OF RICE STRAW RECYCLING (ECONOMICS OF RECYCLING RICE STRAW IN SHARKIA GOVERNORATE)
2018
Hoda G.A. Taha | B.E. Morsy | Eman Amin
The study aimed at maximizing the utilization of rice straw and the economic return of rice straw recycling, leading to an increase in the economic return of the farms, which in turn leads to increaseing the added value of the agricultural sector on the one hand, and preserving the environment on the other hand. Rice straw, due to the increase in plant waste year after year, and the decrease in environmental awareness among the majority of farmers. The study was conducted at the level of Sharkia governorate and through the geographical distribution of rice straw at the level of the Sharkia centers. About 10.3% of the average production of Sharkia Governorate during the study period. The study relied on the first two sources in the preliminary data obtained from the questionnaire form. The second source was the published secondary data published by the research authorities in the process of recycling agricultural waste. Eightyfive percent of the study sample had an idea of recycling. The largest source of their knowledge is the role of the agricultural association and the agricultural supervisor, and the farmers' proposals for tobacco The number of straws on the eastern level was estimated at 49.7 thousand pounds. If they were recycled, they would achieve a material return of 24 million pounds, and the amount of hay at the level of the republic was estimated at 2.91 million tons. In addition, it was found that the center of Zagazig ranked first in terms of the amount of rice straw burned in the governorate (the most needy centers are aware of the pollution of the environment, which increases the risk that it is considered the highest place Population density in Sharkia governorate.
Afficher plus [+] Moins [-]TURF IRRIGATION MANAGEMENT BASED ON RECENT TECHNIQUES
2018
Nabila A. Mohamed | A.M. El-Gindy | K.F. El-Bagoury | O.M. Beder
Irrigation, water management under climate change conditions plays an important role in rationalizing water uses efficiency in the agricultural development processes specially under aridecosystems conditions. Therefore, the objective of this study was to estimate the irrigation water requirement of savings landscaping areas under different recent techniques. So, this study focused on comparison between fully automatic with central control system (C.C.S) based on weather station and Control unit based on operator experience and background. The experiments were conducted during two years (from January 2014 to December 2015), in the site that located in District 5, New Cairo, Cairo, Egypt. The results indicated the irrigation scheduling based on weather station data using a central control system (C.C.S) optimized maximize the irrigation water use efficiency and increase the amount of irrigation water saving by about 14%, 36%,18% and 33% in Autumn, Winter ,spring and summer respectively in year of (2014) and 7%, 29.7%, 16%, 33% in Autumn, Winter, spring and summer, respectively in year of (2015) compared with the other irrigation scheduling when based on calculated according to traditional method. In addition, the results revealed that scheduling practices based on weather station data by using central control system could reduce the average of power consumption (about 314 KW) in year of (2014) and (about 347 KW) in year of (2015). Moreover ,the results revealed that the cost of water consumption for the central control system based on the data of the meteorological station for the two years 2014 and 2015, the years of study were 018601 L.E./ 2 years compared with the other irrigation schedule when calculated according to the operator's experience was 010101 L.E./ 2 years. Where the cost of 36172, 13603, 23393 and 33642 L.E./ 2 years in the winter ,spring, summer, autumn and respectively of the central control system and 39600, 17068, 28820 and 45522 L.E./ 2 years in the winter, spring, summer, autumn respectively of the other system.
Afficher plus [+] Moins [-]A COMPARATIVE STUDY OF TRADITIONAL AND MODERN IRRIGATION SYSTEMS MANAGEMENT FOR IRRIGATING DATE PALM TREES IN NEWLY RECLAIMED LANDS
2018
Salwa B. Mazen | A.M. El-Gindy | Y.E. Arafa | Ibrahim A.A. A.A.
field experiment was conducted in newly reclaimed sand soil to find out the most efficient combination between irrigation system and deficit irrigation management can be used for date palm trees “Zaghlol cultivar”. Results revealed that the average water requirements of date palm trees gradually increased from 1504, 1279, 1128 and 978 for drip to 2522, 2143, 1891, and 1639 m3/fedSeason for bubbler irrigation system in combination with 100, 85, 75 and 65% deficit irrigation treatments respectively. Data indicated that EC1:5 in dS/m gradually increased with decreasing deficit irrigation levels from 100 to 65% and with increasing soil layer depth to 60-90 cm either in parallel or perpendicular direction of drip or bubbler irrigation lines. While opposite result was observed for soil moisture distribution. Results showed an evident decrease in crop yield as affected by water stress associated with decreasing deficit irrigation treatments from 100 to 85, 75 and 65 % by about 167, 155, 153, 151 for drip and 181.5, 168, 172 and 169 kg/Tree for bubbler irrigation systems. Data revealed that water use efficiency increased from 0.10 for 100 % DI to 0.93, 0.83 and 0.64 m3/kg for 85, 75 and 65 % deficit irrigation under drip and slightly decreased from 0.16 for 100 % DI to 0.14, 0.12 and 0.11 m3/kg for bubbler irrigation systems respectively. It could be concluded that the best method for managing irrigation of date palm trees "Zaghloul cultivar" in the study area is the irrigation using bubbler system with 75% deficit irrigation treatment. This combination treatment gave acceptable yield of about 172 kg/tree with saving a substantial amount of Irrigation water reached to about 25% (1891 m3/fed or 22 m3/tree) with WUE of about 8.09 kg/m3.
Afficher plus [+] Moins [-]ADOPTION ASSESSMENT OF NUTRITIONAL TECHNOLOGIES BY DAIRY CATTLE SMALLHOLDERS
2018
Atwa E. | M. Elwardani | Amal Omar | H. Soliman
This study aimed at characterizing nutritional packages adoption by the small dairy farmers under crop-livestock production system. The study is based on quantitative and qualitative statistical analysis. A cross-sectional random survey covered a total of 200 farmers located in 4 governorates Sharqia, Monufia, El-Fayoum, and Minya (50 each). The socio-economic analysis indicated that the illiteracy level was higher (42%) in Minya governorate as compared to others. about half of the households (49%) have been working full time in their farms as farmer this means that they earn their living from agriculture. Family labor represented the highest percentage being 88%, 92%, 80%, and 86% for Sharqia, Monufia, El-Fayoum, and Minya respectively. The results further indicated that farmers who used silage, hay, and green forages, have the highest animal numbers, either from indigenous cows, crossbred cows, buffaloes, sheep, goat, and donkey compared to those who do not use the nutritional packages (non-adopters). The highest percentage of dairy, heifer, fattening, and growing for crossbred cows and buffaloes was detected under silage, hay, and untraditional green forages adopters comparable to those detected under non-adopters. Sharqia governorate had the highest number and consequently percentage of animals followed by El-Fayoum governorate. Silage adopters recorded the highest significant (P<0.05) value of daily milk yield (DMY) and total milk yield (TMY) for indigenous cow, crossbred cow and buffalo as compared to non-adopters. Calving interval significantly (P<0.05) increased for all dairy animals (indigenous cows, crossbred cows, and buffaloes) under non-adopters of nutritional packages being 387, 388.57, and 402 days for the aforementioned animals, respectively. Dairy animals reared under the Nile Delta had the highest significant DMY versus those under the Middle Egypt, where it was 4.05, 8.52, and 7.29 kg vs 3.76, 7.74, and 6.48 kg per day for indigenous cows, crossbred cows, and buffaloes, respectively. In conclusion, adopters of nutritional packages had the highest animal percent and recorded the highest productivity compared to non-adopters.
Afficher plus [+] Moins [-]IMPROVING FRUIT CRACKING RESISTANCE OF WONDERFUL POMEGRANATES
2018
Mai Ismail | N. Abd-Alhamid | Eman Sewrus | Samah Nasr
two successive seasons of 2015 and 2016 on Wonderful“ Pomegranates trees grown in sandy soil under drip irrigation system in a private orchard located at Giza governorate, Egypt . Trees were sprayed two times (at fruits size 8-10 mm & Re- spraying at one month later) with Potassium silicate at (2500 & 5000 ppm) , Boron at(5 &10%) , Kaolin (1 &2% ) , Zinc oxidase (1000 & 2000 ppm) with wrapping as a commercial treatments . Spraying started at July in the two seasons to improve fruit cracking resistance “Wonderful“ pomegranates and study their effects upon yield components, physical and chemical fruit properties. Results indicated that the “Wonderful“ pomegranates cultivar had the highest values of fruit weight and the minimum cracking values were obtained by spraying Boron at (5 %) and potassium silicate at (5000 ppm) in both seasons and this treatments gave the maximum values with total yield/tree, /feddan and Marketable yield/tree, /feddan .Meanwhile ,number of arils per fruit ,total soluble solids , total sugar ,total acidity , (arils)/fruit weight was not affected but when trees treated with wrapping, without wrapping and zinc oxidase at (1000 ppm) sprays gave the minimum mentioned above characteristics. However, fruit weight, arils weight, ascorbic acid, anthocyanin and tannins %were increased as influenced by foliar spraying with all treatments in both studied seasons. Therefore, boron at 5 % and Potassium silicate at 5000 ppm treatments could be recommended for improving Wonderfull pomegranate cvs performance in cracking resistance alternative treatments to fruit wrapping under similar conditions of this study.
Afficher plus [+] Moins [-]USE OF CORN DISTILLERS DRIED GRAINS WITH SOLUBLES (DDGS) AND FOOTS IN NILE TILAPIA FINGERLINGS DIETS
2018
Doaa Fouda | H. Khattab | M. Amer | KH. El-Kholy
The aim of this study was to investigate the use of corn distillers dried grains with solubles (DDGS) (27.11% CP) and Foots (20.84% CP) as corn processing by-products in monosex Nile tilapia, Oreochromis niloticus diets to replace yellow corn as an energy source and its effect on growth performance, nutrients utilization, whole body proximate composition, nutrients digestibility and economic efficiency. Three hundreds and seventy five fingerlings of Nile tilapia (10± 0.05 g) were randomly distributed into 15 circular plastic tanks (1000 L), representing 5 treatments. Isonitrogenous (25 to 25.84%) and isocaloric (4174.79 to 4364.65 Kcal GE/kg) experimental diets were prepared with substitution levels of DDGS 0% (T1), 20% (T2) and 40% (T3) and Foots 20% (T4) and 40% (T5). The experimental period lasted for 18 week. Results showed that both of DDGS and Foots have higher in all measured amino acids content than those in yellow corn except cysteine. Moreover, DDGS and Foots have higher content of linoleic, oleic, stearic and palmitic acids than those in yellow corn. Also DDGS and Foots covered the nutrient requirements of the essential fatty acid linoleic (18:2 ω 6) for Nile tilapia. Feed intake was significantly decreased as corn partially replaced by Foots more than the DDGS. Apparent digestibility coefficient of CP, EE, NFE and energy recorded the highest values for the T4 (75.76, 89.86%, 57.48 and 68.71%), respectively, followed by T3 with significant differences. The increasing in substitution levels of yellow corn by DDGS did not significantly (P˃0.05) had an effect on Nile tilapia performances. However weight gain and specific growth rate SGR were gradually decreased with increasing the substitution levels of Foots. The CP content of Nile tilapia carcass was significantly increased with increasing the substitution levels of DDGS (T3) and Foots (T5). Feed conversion ratio (FCR) of the fish fed diets T4 (20% Foots) was the best followed by T5 (40% Foots). The cheaper feed cost gain was obtained from T5(40% Foots) followed by T4(20% Foots).
Afficher plus [+] Moins [-]ЕFFЕCT OF SOMЕ ЕSSЕNTIAL OILS ON GRЕY MOULD, CAUSЕD BY Botrytis cinеrеa ON TABLЕ GRAPЕ AT COLD-STORAGЕ
2018
A. Al-Essawy | I. Rashid | A. Mosa | M. Ali
Еssеntial oils (ЕOs) from cinnamon (Cinnamon zylanicum), clovе (Syzygium aromaticum) camphor (Еucalyptus globulus), and rockеt (Еruca sativa), wеrе еvaluatеd for thеir botryocidal еffеct. In-vitro, Botrytis cinеrеa was еxposеd to 4 diffеrеnt concеntrations of ЕOs, using thrее diffеrеnt tеchniquеs, i.е. amеndеd mеdium, vapourisation, and volatilising. Cinnamon and clovе ЕOs wеrе thе highеst tеstеd concеntrations found to bе thе most еffеctivе in all tеchniquеs which complеtеly inhibitеd 100% of radial growth for B. cinеrеa in vitro. A post-harvеst trial to control grеy mould on grapе bunchеs of Flamе sееdlеss and Supеrior sееdlеss cvs. were conductеd using cinnamon and clovе oils in sеasons 2014 and 2015. Both of the two ЕOs wеrе usеd at concеntrations of 25, 50 and 100 µL./L-1air v/v, еxposеd as vapour trеatmеnt significantly supprеssеd grеy mould during thе cold-storagе. Thеrе was not a significancе diffеrеncеs obsеrvеd among both ЕOs trеatmеnts. Howеvеr, cinnamon at 100 µL.1L-1air v/v was thе most еffеctivе trеatmеnt to control grеy mould of both grapе cultivars
Afficher plus [+] Moins [-]FEED EFFICIENCY OF URBAN AND PERI-URBAN DAIRY PRODUCTION SYSTEMS
2018
M. Elsrogi | M. El-Wardani | H. Elsayed | M. Khorshed
The study aimed at estimating feed efficiency of milk production systems in Urban and Peri-urban areas in three main provinces in Egypt. The targeted provinces were: Cairo, Giza and Qaloubeya. A questionnaire has been developed to cover the variables related to the production systems. The total number of interviewers was 72, included the districts: Manshiat Elbakary; Saft Elaban and Shalaquan as peri-urban, and Elmarg; Elomrania and Dar Elsalam as urban areas. As a result of the great significant in the selected samples, a typology has processed gathering similarities in two main groups of producers: land-access and landless producers. Three crop-livestock systems have been classified due to the concepts: land capacity and herd size (group 1, 2 and 3). Dairy systems have been identified as two main urban dairy specialized systems (group 4 and 5) oriented to dairy activities. In order to measure feed efficiency for each system were represented in the groups, the most significant obtained results were: the small and the micro crop-livestock producers related land-access producers (group 2 and 3) which have small herd appear to be more efficient in valorizing feed in relation to milk production per head per year, and as well as milk production per feddan allocated to fodder crops. On contrary, the landless producers (group 4 and 5) have the lowest feed efficiency due to the amount of concentrates included in their feed strategy (intensive feeding system) and inability to produce fodders. The large mixed crop-livestock system (group 1) represents an intermediate status that producers cultivate fodders inside farm, but remain low economic efficiency in terms of their intensive feed strategy. The results of the study indicated that the small and the micro crop-livestock (group 2 and 3) achieved the highest feed efficiency regarding milk production in Urban and Peri-urban areas and thus the importance of improving productive performance by creating supposed scenarios or technical packages using simulation systems. Nongovernmental organizations (NGOs) and extension programs are essential in performing records and marketing which help to raise product price as well as producers` income and the Gross Domestic Products (GDP).
Afficher plus [+] Moins [-]IMPACT OF IRRIGATION WATER MANAGEMENT AND SILICON SPRAYING ON AVOIDING COLD INJURY AND IMPROVEMENT YIELD OF KITT MANGOS
2018
A. Gooda | N. Abd El-Hamid | A. Abo-Hadid | O. El-Behari
The present study was carried out during 2015 and 2016 seasons on Kitt mongo trees to evaluate the effect of three irrigation water management (4000 m3 of irrigation water were applied to the four physiological stages of mango tree growth as 15 & 20 & 40 & 25 % , 30 & 15 & 35& 20 % and 35 & 20 & 30& 15 % m3 / tree/ year, respectively) as well as four concentrations of potassium silicate on avoiding cold injury and improvement yield of kitt mango . Irrigation Mango tree by the second program water management (30, 15, 35 , 20) recorded The highest values of vegetative growth in terms of number of shoot /tree and lower values of leaves percentage affected with cold injury, Also, an evident increase in the content leaves of N & K elements , C/N ratio and final fruit set % total yield by divided irrigation water at the four physiological stages of mango trees (30, 15, 35, 20) was recorded compared with the other two water managements. No significant differences between the second and third irrigation water management programs (30%, 15%, 35%, 20% and 35%, 20%, 30%, 15%) on values of leaf area, P% and total carbohydrates as well as on TSS, acidity and L-ascorbic acid content of fruits . Spraying trees with potassium silicate in three times during the period from October to January at the rate of 1000 ppm give the highest values of quality characteristics at mango trees and their fruits. While sprayed with potassium silicate at 2000 ppm achieve moderate values of the mentioned characteristics It could be recommended from the obtained data that irrigation water management at the four physiological stages (30, 15, 35, 20) of Kitt mango trees and spraying 1000 ppm potassium silicate in dormancy period is considered a good treatment to avoid cold damage on leaves and fruits as well as in giving the highest yield and quality of kitt fruit.
Afficher plus [+] Moins [-]EFFECT OF BIOLOGICAL TREATMENTS OF GREEN CORN STOVER AND STALKS ON DIGESTIBILITY COEFFICIENTS, RUMEN FERMENTATION AND SOME BLOOD PARAMETERS IN SHEEP
2018
Hanan Saad | H. Gado | T. Draz | H. Metwally
This study aimed to investigate the effect of a mixture of (ZAD) and (Lacto bacillus plantarum) on chemical composition of green corn stover and corn stalks and the effect of these treatments in a metabolism trial on digestibility coefficients , rumen fermentation and some blood parameters. One ton of either green corn stover or corn stalks was chopped into (2-3 cm) and its mixed with 0. 5 cubic metre of water or one cubic metre of water, respectively. They were then mixed with 3%w/w molasses and 1.5%w/w urea and incubated for six weeks. The experiment included six treatments, three of them were on green corn stover and the rest were on corn stalks. The treatments on green corn stover were as follows: (T1) Untreated green corn stover (control). (T2) corn stover + lactobacillus palantarum + ZAD (2litres of ZAD + 1 liter of lactobacillus palantarum / 1ton). (T3) corn stover + ZAD ( 2 liters of ZAD/ 1 ton). The treatments on corn stalks were as follows: (T4) Untreated corn stalks (control). (T5) corn stalks + lactobacillus palantarum+ ZAD (2litres of ZAD +1 liter of lactobacillus palantarum /1ton) (T6) corn stalks + ZAD (2 liters of ZAD/ 1 ton). Eighteen Ossimi male lambs were divided to six group rations for 15 days in metabolism trials. Results indicated that biological treatment on T2 and T3 treatments on green stover and T5 and T6 on dry corn stalks decreased CF and NDF, ADF, ADL contents and increased CP content compared to the control. Feeding lambs on treated green corn stover or treated dry corn stalks significantly (P<0.05) improved all of nutrients digestibility compared with those fed on control. The nutritive values as TDN, DCP and N balance for lambs fed treated green stover or treated dry corn stalks showed significant(P<0.05) higher than those fed untreated and it had the same trend of nutrient digestibility . Adding lactobacillus palantarum + ZAD improved digestion coefficients of nutrients and TDN values compared with control. Results of blood parameter indicated that T2 of green corn stover and T5 of corn stalks had a significant (P<0.05) effect on (Tp, Alb, Glb, A/G) compared to the control and T3 of corn stover and T6 of corn stalks. All values of plasma ALT and AST for all treatments were in normal rang where all treatments had no effect on ALT. However, T2 of green corn stover and T5 of corn stalks had a significant (P<0.05) effect on AST compared to the control and T3 of corn stover and T6 of corn stalks. All values of plasma creatinine and urea for biological treatments appeared to significant(P<0.05) higher values. However, these values were in normal range. Results of rumen parameters indicated that all treatments had no effect on pH and NH3-N. On the other hand T2 of green corn stover and T5 of corn stalks significantly (P<0.05) increased TVF'S. Generally, Adding enzyme with or without lactobacillus to green corn stover or dry corn stalks tended to improved nutrient components , digestibility coefficients, feeding values and nitrogen balance with no adverse effect of animal health .
Afficher plus [+] Moins [-]