Two field trials were conducted at Giza Research Station, with split plot design with three replicates during the two successive summer seasons in 2012 and 2013. The aim of this study was to find out the effect of cotingen for covering seed by four treatments (zero, 7.5, 15 and 22.5 g kg-1 grain) and six nitrogen fertilizer levels (control, 30, 60, 90, 120 and 150 kg fed.-1) on maize yield and yield attributes of single cross 10 cultivar. Stepwise multiple linear regression analysis was used to determine the importance of yield components and to predict the yield under different levels of nitrogen and cotingen rates. Nitrogen levels exhibited significant effect for all studied traits, while cotingen were significant for100-kernels weight; shelling% and grain yield traits only. The interaction between cotingen and Nitrogen was significant for row per ear, shelling% and grain yield. Meanwhile, stepwise linear regression analysis showed that 100-kernels weight, number of kernels per row and shelling% were the most important contributing traits to yield (R2 = 82.11%). The nitrogen rates for maximum yield derived from the four statistical models (linear, logarithmic, quadratic, and exponential) describing the response of yield, using the R2statistic to select a model, which shows how each of the models fits the data. The quadratic model best described the yield responses observed in this study. Further confirms the role of nitrogen and cotingen fertilizers in increasing yield production in maize. The 5th N rate under 3rdcotingen (120 Kg fed-1 + 22.5 and 15g kg-1 grain) produced the highest yield being 34.70 and 34.65 ard. fed-1 over all treatments. This is very close to recommendations. The 4th N (90Kg fed-1) rate under any cotingen level produced higher yield than any nitrogen rate only. Economically, considering optimum N fertilization rate, 105.18 Kg fed-1 nitrogen and 22.5 g kg-1 grain cotingen was the most reasonable level. This is considerably below the current recommendation. Therefore, results confirmed that higher cotingen treatment decreased the optimal nitrogen and increased the yield.

This research reviews the distribution of some old species of the Egyptian flora in different phytogeographical regions. Results are compared with the suggestions given by Täckholm (1974), El-Hadidi and Fayed (1994/95), El-Khanagry and Mohamed (2004), and Boulos (2009). The research includes new distribution of 38 species belong to 34 genera and 22 families.

The present investigation was carried out at the Experimental Farm of the Faculty of Agriculture at Fayoum, Cario University at Dalla, Fayoum Governorate during the two seasons 2000/2001 and 2001/2002. The aim of this investigation was to study the effect of organic manure and number of berseem cuts on cotton yield and its components and fiber traits. The obtained results indicate that only plant height at harvest, number of fruiting branches / plant and the height of the 1st fruiting branch were significantly affected by organic manure (O.M.) application. On the other hand, organic manure did not affect significantly the seed cotton yield, yield components and fiber quality traits. Cotton planting dates affected significantly all studied vegetative growth, seed cotton yield, yield components and fiber quality traits. Early planting date (1st week of March) showed significant superiority over the other two planting dates (1st week of April & May) in number of fruiting branches/ plant, number of days to 1st flower appearance and 1st boll opening, number and weight of open bolls/ plant in the 1st& 2nd pickings, seed cotton yield, lint percentages and studied fiber quality traits. The decreases in the total seed cotton yield attributed to the late planting dates (1st week of April & May) amounted 26.4 and 84.8% and 30.6 and 84.1% of  March planting with the treatments of 10 and 20 m3/ fad organic manure, respectively.

Fattening cattle projects represents an important role in the agricultural economy, as these activities contribute by about 36% of the total value of agricultural production, amounting to about 159.09 billion Egyptian pounds. The average value of medium term livestock loans presented by the Bank of Development and Agricultural Credit during the period (2000-2012) was about (3 – 7.8) million Egyptian pounds, respectively. The search was a problem in that in spite of the availability of many economic possibilities and productive conditions that support and strength the chances of success of fattening cattle projects New Valley Governorate it was shown that Governorate has a Weak Contribution in Live stock Production. The objectives of these research is studying productive and economic efficiency for fattening cattle through some economic and technical relations to identify the most important factors that affect the economic efficiency in production. These objectives   has been realizing depending on two methods of data collection, the first depends on secondary data, and the second depends on the primary data through using questionnaires to collect data a sample of  cattle breeders at (Mott, acement, balat villages) at Dakhla district. The study used qualitative and quantitative statistical methods to achieve the objectives of the study, such as the equations of time trend in it's linear and quadratic, cubic, forms and use multi-phased regression method. The most important results that research can be summarized as follows: Decrease in short-term current value animal loans by annual rate of about 0.37 million pounds.  Decrease in short-term real terms animal loans by an annual rate of about 0.23 million pounds. Decrease in medium-term current value animal loans by an annual rate of about 0.95 million pounds.  Decrease in medium-term real terms animal loans by an annual rate of about 0.34 million pounds.  Increase numbers of cows by an annual rate of about 11.1 thousand units.  Decrease the numbers of buffalo by an annual rate of about 0.03 thousand units. Increase the numbers of sheep by an annual rate of about 4.9 thousand units. It shows also the in significance of increasing    the numbers of goats. Declining numbers of camels by an annual rate of about 0.28 thousand units. Results of calculating the production function of calves for total sample of the study shows a statistical significant positive relationship between gross flesh and the quantity of each of green fodder, concentrated and dry, employment and the weight of the animal at the beginning of the grow-out period, as an increase in the amount of those variables respectively by 1% leads to an increase in the amount of output by about 0.055%, 0.692%, 0.161%, 0.008%, 0.037%. Results showing also that the marginal product of feed for total sample was about 7.79, 75.68, 17.39 kg live weight of feed green, concentrated, dry, respectively, means that the marginal product of concentrated feed greater than the marginal product of other feed refers to preferential use of concentrated feed production red meat. The optimum weight and maximizing profit weight for the total sample was about 445, 495 kg.   In light of results, the research recommends the following:   Expansion in the establishment of livestock production projects, and work to support and encourage breeders by increase loans, and to facilitate the procedures for obtaining it. 2. Increasing the concentrated feed production in deferent areas to be compatible with the geographical distribution of animal wealth.

This research amid at studying the most important productivity and economic indicators for maize crop in the reclaimed during the period (2001- 2012), the geographical distribution of areas, productivity and production of maize in the reclaimed, the most important production problems facing farmers of maize in the reclaimed and suggestions of producers to solve them, identify the most important factors affecting maize production crop and estimate the cost function with determining the minimization of costs that achieve the highest productivity of maize crop were also made the study is based on random field sample with a size of 110 farmers from county of Al-Dakhla, Al-khrga, Farafra, Paris, Balat of New Valley Governorate during 2014 year . When estimating size of productivity per feddan for maize crop which may minimizes   productivity costs to the lowest level in the New Valley Governorate, it was showed    that this size is estimated at 2.04 tons/feddan in the season of  2014. The number of farmers who have reached this volume of production amounted to 20 farmers of the total sample size of 110 farmers with ratio of 18.18%. The study showed that most important quantitative variables affecting average production per feddan of maize crop in the New Valley Governorate using stepwise multiple regression procedure were the amount of nitrogen fertilizer, amount of phosphate fertilizers, number of workers as there was significant correlation between independent variables and the dependent variable. These three factors explain about 82 % of the total influencing factors affecting the production of the crop. So, the study recommends focusing on nitrogen and phosphate fertilizers due to the nature of the soil. The study recommends that price fertilizer may be decreased, provision of fertilizers in cultivating areas to avoid transportation costs, The need to provide specialized technical labor by the State and public agencies on training skilled technical labor, and support agricultural production and reduce agricultural machinery prices all these chains shall lead to reduce Egypt's imports of maize needed to develop   livestock sector and to reduce the burden of foreign currencies.

Wheatgrass juice is the young grass of the common wheat plant (Triticum aestivum) freshly juiced for human consumption. The objective of the investigation performed was to assess the nutritional value of wheatgrass juice under laboratory and open field conditions at two different cuts. Protein, chlorophyll contents, minerals content (Ca, Fe, Mg, Zn and Se) and amino acids content as well as phytochemical constituents were determined. Grown wheatgrass at laboratory caused an increase of the protein content of its juice over open field condition. High chlorophyll content was observed under open field especially at second cut. Most of minerals content underwent to increase under open field except Mg content. Aspartic acid was recorded the highest amino acid in both laboratory and open field. Total essential amino acids were increased under open field condition at both first and second cut followed by first cut at laboratory. No big changes of natural phytochemicals constituents can shown between laboratory and open field condition while it was more pronounced compare with wheat seeds. The study suggested that sprouting wheat seeds at laboratory and open field improve the nutritional value of grass juice with preferably to laboratory condition especially at first cut and for saving agricultural land.

Three experiments for to pot ond one field experiment were carried out at Agric. Res. Station, Fac. Agric., Al-Azhar Univ. Nasr City and El-Aklag region, Kaliobia Governorate, Egypt, during 2011/2012, 2012/2013 and 2013/2014 to investigate the influence of mineral nitrogen fertilizer and biological ones i.e. Cerialen and Biogen under foliar spraying with Cysteine on the productivity of three wheat varieties (Sakha-93. Masry-1 and Banisweif). The studied treatments were recommended dose of N (75 kg N/fed., F1), recommended dose of N. fertilizer + Cysteine at the rate of 150 ppm (F2) 50% recommended dose of N fertilizer + Cerialine + Cysteine (F3) and 50% recommended dose of N fertilizer + biogen + Cysteine (F4). Complete randomized design was applied for the pot experiments, whereas split plot design was conducted for the experimental field. The results revealed that the difference between the investigated varieties due to plant height (cm) and flag leaf area (cm2) was substantial. Sakha-93 var. pronounced its superiority due to the both studied growth characters during the pot and field experiment. F2 treatment located the first order and gave the tallest wheat plants, whereas F4 treatment awarded the largest area of flag leaf, during the three experimental seasons. Yield and yield components parameters (No of grains/spike, 1000-grain weight (g), grain yield (g/plant in pots and ardab/fed. in field), straw yield (g/plant and ton/fed. in field) and biological yield (g/plant in pots and ton/fed. in field ) differed significantly between varieties. the maximum value were obtained from Sakha-93 and Masry-1, while the minimum ones associated with Baniswif variety, through the three experimental seasons. With the exception of straw yield either pot experiments or the field one, F2 and F4 treatments resulted in the heighest data for the previous yield and yield components parameters. The effect for the first order interaction (Var. x Fert.) on the studied characters differed with the characters difference (significant or non-significant) as shown from the obtained results during the three experimental seasons.

Sixteen flax genotypes {13 promising lines This study aimed at: (1) knowing about farmers’ views about advantages, disadvantages of mobile extension service and their suggestions to make this prospective initiative succeed; (2) discovering farmers’ behavioral intentions to use mobile extension service in Assiut governorate; (3) determining the kind of information that farmers will need by using mobile extension service; (4) examining the effect of the six antecedents proposed by Nysveen et al(2005a) on farmers’ behavioral intentions to use mobile extension service. Data were collected by questionnaire from 233 farmers randomly selected from two villages in Assiut governorate. The results showed the advantages, disadvantages of mobile extension service from the viewpoint of the respondents and their suggestions to make this prospective initiative succeed. It came out that the respondents have positive intentions to use mobile extension, and their prospective behavior proceeds to use mobile extension service if it comes into existence. It cleared up that the information needs of farmers by using mobile extension were related to market information (prices, and demand indicators) and know-how information (what to plant and which seed varieties to use). It became clear that the model of Nysveen et al (2005a) was overall significant and the six antecedents of behavioral intentions significantly explains 71% of variance in farmers’ behavioral intentions to use mobile extension service. Finally, based on the results of this study, major recommendations are derived for the potential producers when developing the prospective mobile extension service

The current research aimed to investigating the current situation of the research stations of Desert Research Center and possibility of achieving its roles in the development of the Desert communities, identifying barriers facing and badly affect its role from the viewpoint of its employees, in addition to identifying the current and expected role of these stations from the viewpoints of the surrounded farmers. Thirty six research stations’ employees represent about 32.7% of the total number of employees were selected from the studied research stations. In addition to twenty surrounded farmer were selected belonging to each station with a total number of 80. The research depends on the description approach to achieve its objectives. Frequencies, percentages, average, and weighted average were used for result presentation and analysis.      The main results were   1-   Lack of efforts for employees’ trainings that could affect their role in developing the desert communities they working in. 2-   There are several barriers faced the studied research stations and the employees suggests several points to overcome these barriers. 3-   More than two thirds of respondents (67.5%) were located in low and medium level of the role, that represent the low role of the studied research stations in the development of desert communities 4-   There are several activities and services were expected by the surrounded farmers that could activate the stations’ developmental roles. At the end, based on the research findings, four recommendations were formulated to activation the research stations’ role s in serving and development of desert communities.

Susceptibility of the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera : Gelechiidae) larvae, pupae and adults to entomopathogenic nematode, Steirnernema carpocapsae and two fungal species; Beauveria bassiana and Metarhizium anisopliae was investigated under laboratory conditions. Applied concentrations against the last instar larvae and different ages of the pupae, using leaf and soil treatments, were 250, 500,1000 IJs/ml for the nematode and 108, 109,1010 spores/ml for the fungi. Soil applications of the nematode and fungi resulted to high mortality (100, 100 and 93.3%) of4thinstar larvae while low pupal mortality (46.7,30and 23.3% ),respectively. In leaf treatment a high level of larval mortality (93.3, 90 and 80%) was recorded revealing S. carpocapsae, B. bassiana and M. anisopliae, respectively. The present study also showed also susceptibility of Tuta absoluta adults to the three pathoens. The results demonstrated suitability of entomopathogenic nematode and fungi for controlling T. absoluta.