Effect of nitrogen, phosphorus and zinc fertilization on yield, quality and nutrients uptake of berseem-barley mixture [electronic resource].

Includes references.

Two field experiments were conducted in clay soil at the Agricultural Farm of Sids Agricultural Research Station, Agricultural Research Center during two seasons 2010/2011 and 2011/2012, consecutively to investigate the effect of three nitrogen levels (0, 15 and 30 kg N/fed), three phosphorus levels, i.e. 6.8, 9.6 and 13.1 kg P/fed and two zinc application levels (0.0, and 10 kg zinc sulphate/fed) on total fresh and dry forage yield, forage quality; namely, N, protein, P and Zn concentration and N, P and Zn uptake by berseem-barley mixture. Total fresh and dry forage yield significantly increased by N, P and Zn fertilization. Nitrogen and protein percentage positively affected only by nitrogen fertilization. While, phosphorus concentration significantly affected by raising phosphorus levels only.

Summary in Arabic.

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