Eman M. Rashwan; Rasha E. Elmahdy and M. R. Mohamed( 2021). Impact of Carbon Coated Urea with Organic Fertilizers on (Soybean -Wheat) Crops SuccessionJ. of Soil Sciences and Agricultural Engineering, Mansoura Univ., Vol. 12 (3):199 - 207, 2021
Abstract: Two field experiments on soybean (Glycine max L.; Variety Giza, 111), wheat (Triticum aestivum L.; Variety Misr 1), were conducted at Agricultural Experimental Research Station of Tag El-ezz, Agricultural Research Centre, El-Dakhalia Governorate, Egypt during two successive summer - winter seasons of (May to November 2019) and (November 2019 to May 2020). The experiment treatments were included eleven (11) treatments (T1- Absolute control, T2- 100% U (recommended dose of urea fertilizer), T3- 100% CCU (recommended dose of carbon coated urea fertilizer), T4- 75% U+ 20 m3 farm yard manure (FYM), T5- 75% U+10 m3 FYM, T6- 50% U+20 m3 FYM, T7- 50% U+10 m3 FYM, T8- 75% CCU+20 m3 FYM, T9- 75% CCU +10 m3 FYM, T10- 50% CCU +20 m3 FYM, T11- 50% CCU +10 m3 FYM). The treatments were layout in complete randomize block plot design with three replicates. The results indicated that the highest mean values of vegetative growth stage (N, P and K % and chlorophyll a, b and Carotene), chemical content of harvest stage (N, P and K % in soybean stover and seeds or wheat grains and straw) and protein %, as well as yield and its components (plant height cm, stover, seeds ton fed-1 and 100 seed weight of soybean or straw, grains yield (Ton fed-1) and1000 grain weight (g) of wheat) were recorded with integrated application of inorganic and organic fertilizers. T8- 75% CCU + 20 m3 FYM, was considered as most suitable treatment for obtaining the highest yield of soybean – wheat under these experimental conditions.
Keywords: (Urea - carbon coated urea and soybean- wheat crops rotation.)
