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In season of 2018, an experiment was established as field experiment to evaluate the effect of different raets of phosphorus fertilization (control, 25, 50, 75 and 100% from recommended dose, 60 kg.fedcalcium superphosphate SP; 15% P2O5 as main plots along with presence and absence of compost town refuse as sub-plots on growth, chemical contenst and productivity of sweet pepper plant (Capcicum annum) at the Experimental Farm of Faculty of Agricultural, El-Mansoura University.The experiment tested was arrauged in an experimental split plot design with three replicates.The results showed that growth of sweet pepper plants were affected signifiently according to application of P-fertilization, addition of 75% followed by 50% which recorded the highest values of average fresh weight (g), number of fruits per plant, total fruit yield per plant (g/plant) and total yield (ton/fed) as well as DM%, an increase in photosynthetic pigments, TSS% and V.C (mg/100g) and minerals composition (N, P and K% in leaves and fruits) was also recorded, while Fe, Mn and Zn in sweet pepper fruits decreased with increasing P-fertilization comparing with the control which treatment recorded the lowest values,where the highest values were recorded with 25% of P-fertilization. Heavy metals were increased until 100% P-fertilization. All studied parameters under investigation were increased due to application of compost town refuse. So, it could be recommended for using both 75% from P-fertilization recommended dose and compost town refuse for optimum sweet pepper performance. Therefore, the organic fertilizers might help in reducing the need of high rates of P-fertilization to maintain proper P amount and also in reducing the expenses.

Yield and Quality Parameters of Sweet Pepper Fruits as Affected by P-Fertilization and Compost Town Refuse