, 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 in summer seasons of 2008 and 2009 at the Experimental Farm of Rice Research section Agricultural Research station, El-Gemmiza, Gharbia Governorate. This investigation was conducted to study the response of two rice cultivars (Giza 178 and Egyptian Hybrid 1), Three seedling ages (15, 20 and 25 days after planting) and three transplanting spaces (20 × 20, 25 × 25 and 30 × 30 cm) as well as their interactions on growth characters, yield and its attributes. The main results could be summarized as follows: cultivars significantly differed for all traits, Egyptian Hybrid 1 variety produced the maximum number of tillers / m², number of panicle / m², panicle length (cm) , number of total grains / panicle, 1000-grain weight (g) and grain yield (t/fed). While lowest values of these traits were recorded when using Giza 178 cultivar. Seedling ages had asignificant effect on all studied charactarist. Younger seedlings (15 day old) produced significantly the highest values. While the minimum values of the previous traits were obtained when plants were transplanting at (25 day old) seedlings. Plant spacing significantly differed for all traits. Wider spacing (30 × 30 cm) gave maximum number of tillers/ m², number of panicle/ m², panicle length (cm), number of total grains / panicle, 1000-grain weight (g). and grain yield (t/fed) While closer spacing (20 × 20 cm) gave the lowest values. Significant effect for the the interaction between the three factors under study. The highest values of all traits were recorded when using Egyptian Hybrid 1 cultivar, youngest seedling age (15 day old) and widest spacing between hills (30 × 30 cm).On the other hand, the lowest values were recorded when using Giza 178 cultivar, the oldest seedling age (25 day old) and closest spacing between hills (20×20cm)in the both seasons. In general it could be recommended that, using Egyptian Hybrid 1 with seedling age 15 days and plant spacing of 30 × 30 cm under transplanting.

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To study the influence of foliar applications, N-levels and their interaction on growth, yield and its attributes and grain quality of barley Giza 123 cultivar, a field experiments was carried out at the Experimental Farm of Sahl El-Husseiniya, Agriculture Research Station, as a new reclaimed soils (salinity affected soils), during 2015/2016 and 2016/2017 seasons using design of strip-plot with 4 replicates. Vertical plots devoted to five foliar applications i.e. without, spraying with; Macro + Micro, amino acids, humic acid and the combination of Macro + Micro, amino acids and humic acid. Horizontal plots billed to 3 levels of N-fertilizer (40, 60 and 80 kg N/fed). Spraying barley plants with the combination of (Macro + Micro), amino acids and humic acid at the rates of 2 g + 1 ml + 1.25 ml/liter water, respectively in each spraying was the best treatment to increase barley growth, productivity and grains quality, which produced the highest values of these characters, with exception of total carbohydrates % in grains, which had inverse trend into both seasons. Fertilizing plants of barley with 80 kg N per fed gave the uppermost mean values of barley growth, productivity and quality of grains, except carbohydrates % in grains in together seasons. Foliar spraying barley Giza 123 cultivar with Macro + Micro, amino acids and humic acid at the side of fertilizing by 60 kg N per fed in order to maintain high productivity and grains quality and decrease production costs and environmental pollution under salinity affected soils conditions.

Rice is a very important cereal crop in Egypt and allover the world. In Egypt, it is an essential food crop because of shortage in wheat production, and nitrogen fertilizer is crucial to obtain a good yield. Two field experiments were conducted in 2011 and 2012 rice seasons at the Experimental Farm of Rice Research and Training Center, Sakha, kafr El-Sheikh, Egypt. The experiments aimed to evaluate yield and its components of four rice cultivars; Sakha 101, Giza 178, Egyptian Jasmine and rice Hybrid 1. These cultivars were tested under five nitrogen levels; 0, 23, 46, 69 and 92 kg N/ fed. in the form of urea (46.5 % N). Also, the insect infestations of rice stem borer, Chilo agamemnon Bles. and rice leaf miner, Hydrellia prosternalis Deeming. were evaluated. The main results proved the superiority of Egyptian Hybrid 1 rice cultivar, concerning filled grains and yield. The second rank was that of Sakha 101 cultivar as it gave the highest values of 1000-grain weight and harvest index. According to the current data, it is recommended to use 69 kg N/ fed. (not 92 kg) for fertilizing the tested cultivars, as no significant yield differences were found between the two nitrogen levels. On the other hand, it is important to avoid using overdoses of nitrogenous fertilizers because they encourage the infestation by rice stem borer and rice leaf miner.