, to evaluate the effect of storage methods (normal storage in cotton bags and sealing storage in plastic jars and metal packages) and fumigation with phosphine at 0, 3, 5 and 7 tablets/m 3 on storage efficacy, germination and seedlings parameters of wheat during different storage periods (3, 6 and 9 months after harvesting). The most important results can be summarized as follows:-Increasing storage periods of wheat seed from 3 to 6 and 9 months significantly affected storage efficacy characters (insect infestation and weight loss percentages), final germination percentage and seedling parameters (seedling length, root length, shoot length and seedlings fresh and dry weights).-The best results of storage efficacy of wheat recorded when sealed stored in metal packages, followed sealed stored in plastic jars and lastly in cotton bags. Whereas, highest germination and seedling parameters were recorded when sealed stored in metal packages, followed by normal stored in cotton bags and lastly stored in plastic jars.-The lowest percentages of insect infestation and weight loss in wheat seeds were obtained from fumigation with phosphine at the rate of 7 tablets/m 3. While, maximum values of germination and seedling parameters were obtained from fumigation with phosphine at the rate of 5 tablets/m 3. This study recommended that fumigation wheat seeds before storage in metal packages with phosphine at the rate of 5 tablets/m 3 under the environmental conditions of the experiment in Mansoura, Dakahlia Governorate, Egypt.

Two field experiments were carried out at the Experimental Farm of Gemmeiza Agriculture Research Station, Agricultural Research Center, Egypt, during the two growing summer seasons of 2010 and 2011. The main objective of this study was to evaluate the effect of compost rates, humic acid treatments and nitrogen fertilizer rates on growth, grain yield and its components of maize cultivar yellow single cross 166. Each rate of compost was performed in separate experiment. Every experiment of compost rates was carried out in split plot design with four replications. The main plots were occupied with humic acid treatments. The sub-plots were assigned to nitrogen fertilizer rates. The obvious results of this investigation can be summarized as follows:Adding 30 m 3 compost/fed recorded the highest values of growth traits, grain yield and its attributes in both seasons and their combined. Moreover, applying 15 m 3 compost/fed came in the second rank in both seasons and their combined. The lowest values of these characters were obtained by control treatment (without compost) in both seasons and their combined Soaking seeds before planting in humic acid plus foliar spraying plants with humic acid enhanced maize growth, subsequently produced the highest means grain yield and its attributes in both seasons and their combined. It was followed by soaking seeds before planting in humic acid or foliar spraying plants with humic acid in both seasons and their combined.There were substantial differences in all studied characters among various studied nitrogen fertilizer rates in both seasons and their combined. Fertilizing maize plants with 120 kg N/fed produced the highest values of these characters in both seasons and their combined. However, using 60 kg N/fed was accompanied with the least values of grain yield and its attributes characters in both seasons and their combined, as well as there are many significant effect of the interactions among studied factors on studied characters.Generally, it can be concluded that organic fertilizing maize plants hybrid S.C. 166 with 30 m3 compost/fed and soaking seeds plus foliar spraying plants with humic acid at the rate of 1000 ppm in addition mineral fertilizing with 120 or 90 kg N/fed in order to maximizing its growth and productivity under the environmental conditions of Gemmeiza district, El-Gharbia Governorate.

Two field experiments were carried out at the private field in El-Orman village, El-Sinbelaween Center, Dakahlia Governorate, during 2005 and2006 seasons to find out the effect of three sowing methods (Afeer, Hyrathy and Improved Hyrathy), three mechanical weed control (without, one and two hoeing) and three nitrogen fertilizer levels (75, 100, and 125 kg N/fed) on growth, yield and its components of maize (Zea mays L.) Single Cross 10 (S.C. 10). Each sowing methods was done in separate experiment. Every experiment of sowing method was carried out in split plot design with four replications. The obvious results of this investigation can be summarized as follows: Sowing maize plants via Improved Hyrathy method significantly increased all studied characters as compared with other sowing methods (Afeer and Hyrathy) in both seasons.  Mechanical weed control in maize fields through two hoeing caused remarkable increases in growth characters, yield and its components comparison with without hoeing or controlling weed by one hoeing in the two growing seasons. Application nitrogen fertilization at the level of 125 kg N/fed significantly exceeded other levels (75 and 100 kg N/fed) of studied growth parameters and yield components as well as grain yield in both seasons. Finally, the preferable growth and yield of maize S.C. 10 can be achieved through planting by Improved Hyrathy method, controlling weeds by hoeing at two times and mineral fertilizing with 125 kg N/fad under the environmental conditions of El-Sinbelaween Center, Dakahlia Governorate.

Two field experiments were carried out at El-Orman Village, El-Sinbelaween Station, Dakahlia Governorate, during the two successive summer seasons of 2010 and 2011. The main objectives of this study were to determine the effect of organic fertilization (without, farmyard manure {FYM} and compost) and foliar fertilization (without, spraying with water, Crystal Nasr and Melagrow) under nitrogen fertilizer levels (50, 75 and 100 kg N/fed) on growth characters of maize (Zea mays L.) hybrid TWC 324. Each organic fertilization treatment was performed in separate experiment. Every experiment of organic fertilization treatment was carried out in split plot design with four replications. The obvious results of this investigation can be summarized as follows:  All studied growth characters were exerted significant effect as a result of applying organic fertilization treatments in both seasons, except specific leaf area at 50 days from sowing in the first season. The treatment from organic fertilization which gave the highest values of these characters was applying the compost as compared with other treatments in both seasons.  Foliar application with Melagrow as a natural growth promoter significantly recorded the highest values of studied growth, exclusion specific leaf area at 50 and 70 days from sowing in both seasons. Whilst, application of Crystal Nasr came in the second rank in this respect in both seasons. On the other hand, the lowest values of all growth characters were resulted from the control treatment (without foliar application) in both seasons.  Application nitrogen fertilization at the level of 100 kg N/fed significantly exceeded other levels (50 and 75 kg N/fed) of studied growth parameters in both seasons. Finally, the preferable growth characters of maize hybrid TWC 324 can be achieved through organic fertilizing with compost, foliar application with Melagrow and mineral fertilizing with 100 kg N/fed under the environmental conditions of El-Sinbelaween Center, Dakahlia Governorate.

No abstract