Fertilizer Requiremints of Onion Crop

Document Type : Original Article

Authors

Soils Dept., Fac. of Agric., Mansoura Univ.

Abstract

A pot experiments was carried out during 2015 and 2016 winter season, outdoor at the Agricultural Experimental  Station , Fac . Agric. Mansoura .University  to determine the requirements of onion crops Onion (Allium cepa L, c.v red byhyre) from nitrogen fertilizers in combined with phosphatic and potash fertilizers . The obtained data revealed htat both fresh and dry weigts of onion plants inereased markedly due to the application of 50 kg N, 50 kg P2O5 and 100 kg K2O.fed-1. The plant heigh values tended to increase also according to the sametrend. The effect of fertilization on N,P and K .uptake by the dry matter of onion plants was also discussed.

Keywords