Effect of Moringa extract foliar spray with different nitrogen fertilization levels on growth, yield and its quality of pea plants grown under sandy soil with drip irrigation system

الملخص EN

This study was conducted during the winter seasons of 2014 and 2015 at El-Adlia Farm, Sharkia Governorate, Egypt, to improving the green seeds quality of pea plants grown under sandy soil with drip irrigation conditions and reach to the optimum nitrogen fertilizer rate under using foliar spray treatment with moringa extract.

This experiment included twelve treatments which were the combinations between three rates of mineral nitrogen fertilizer (50, 75 and 100 % of the recommended mineral N rate) and four concentrations of moringa extract (0, 2, 4 and 6 % W/V).

The results showed that the fertilizing pea plants with 75 or 100 % of the nitrogen recommended rate (NRR) in the presence of foliar spray with moringa extract enhanced significantly plant growth, yield and its components as well as the quality of green seeds compared to fertilizing with 50 % of NRR.

Also the spraying pea plants with moringa extract at 4or 6% increased significantly the vegetative growth characters, yield and its components as well as the green seed contents from nitrogen, phosphorus and protein.

The recommended 75 and 100 % NRR combined with foliar application with 4 or 6% moringa extract were the favorable interaction treatments for maximizing the yield and improving the green seeds quality without significant differen % or 6 % and saving 25 % from N fertilizer recommendation.