Main Article Content
This work was carried out during 2019/2020 and 2020/2021 winter seasons in a private unheated plastic houses, Kom Haleen, Menia El Qamh city, Sharkia Governorate, Egypt, to evaluate the effect of different sources of nitrogen fertilizers and some growth stimulants as foliar application on growth, yield and fruit quality of sweet pepper (Lirica RZ cv.) grown in clay soil using drip irrigation system.
Results indicated that, the interaction between fertilization sweet pepper plants with vermicompost at 1.226 kg /m2 (as organic nitrogen 100% ) and foliar spray with compost tea at 10 ml/l increased dry weight of shoots/ plant, number of fruits/ plant , yield / plant and TSS contents in fruits followed by the interaction between vermicompost and spraying with vermicompost tea at 7.5 ml/l at 100 days after transplanting in both seasons. The interaction between fertilization plants with vermicompost +FYM at (0.613+2.100 kg /m2 ) as organic nitrogen (50% +50 % of each ) and spraying with compost tea at 10 ml/l increased N,P and K uptake by shoots, total sugars in fruits (%) and vitamin C in fruits , whereas spraying with vermicompost at 7.5 ml/l with the same fertilizer increase average fruit weight ( kg) , on the other hand, the interaction between fertilizing with ammonium nitrate at 0.085 kg /m2 and spraying with compost tea at 10 ml/l gave the highest values of fruits DM (%).