Faten A. El-Kamar( 2014). Wheat plant grown on sandy soil as affected by different types of nitrogen fertilizersMinufiya J. Agric. Res. Vol.39 No. 4:
Abstract: A field experiment was conducted out on a sandy soil at Ismailia Research Station during winter season 2011/2012and 2012/2013 using wheat variety (Sakha 93) to study the effect of mineral N at rate 0, 50, 75 and 100 kg N/fed, compost at rate 0, 5 and 10 ton /fed and with or without bio-fertilizer nitrogen fixing bacteria (Azospirillium liopferum and Bacillus polymers) and their interaction on wheat yield and soil fertility. Wheat grain and straw yield showed significant response to all treatments. The highest straw and grain yields were obtained with addition of 100 kg N/fed + 10 ton compost + bio-fertilizer. No significant different were observed between this treatment and 75 kg N/fed + 10 ton compost /fed + bio-fertilizer. Mineral N addition increased N, K, Fe, Zn and Mn contents of straw and grain, while P concentration was not affected. Compost addition increased N, P, K, Fe, Zn and Mn of straw and grains. Bio-fertilizer was significant effect on N concentration of wheat straw and grain. The effect of interaction between mineral N and compost was significant on all above mentioned parameter. The effect of mineral N fertilizer on soil available N and P were non significant after harvesting while the K slightly decreased. Compost addition increased soil available N, P, Fe, Zn and Mn.
Keywords: (Compost- Bio- fertilizer- mineral N fertilizer – sandy soil fertility- wheat productivity .)
