TY - SER AU - Hassanin,Islam A.T. AU - Bardisi,A. AU - Nawar,Dalia A.S. AU - Zyada,H.G. TI - Growth and productivity of sweet pepper as influenced by nitrogen fertilization sources and foliar spray with some growth stimulants under plastic houses conditions KW - Sweet peppers KW - Growth KW - Yields KW - Fertilizers N1 - Includes bibliographic reference N2 - This experimental was carried out during the two winter seasons of 2019/2020 and 2020/2021 in a private unheated plastic houses,, Kom Haleen, Menia El Qamh District, Sharkia Governorate, Egypt, to study the effect of different sources of nitrogen fertilizer as soil application and some growth stimulants as foliar application on growth and yield of sweet pepper (cv. Lirica RZ) grown in clay soil using drip irrigation system. Results showed that, the interaction between fertilization sweet pepper plants with vermicompost at 1.225 kg/m2 (as organic nitrogen 100%) and foliar spray with compost tea at 10 ml/l increased dry weight of leaves, stems and shoots/plant at 80 and 100 days after transplanting in both seasons, number of fruits/ plant and total yield/plant followed by the interaction between vermicompost and spraying with vermicompost tea at 7.5 ml/l. Generally, the interaction between fertilization of 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 in leaves and stems and average fruit weight. Key words: Sweet pepper, nitrogen sources, compost tea, vermicompost tea, nano micronutrients and yield UR - http://nile.enal.sci.eg/EALE/2021/ZJAR/4821/4/1005.pdf ER -