Nitrogen Use Efficiency of Spinach

آب و خاک

Article 5, Volume 24, Issue 2, May 2010   

Document Type: Research Article

DOI: 10.22067/jsw.v0i0.3241

Author

M. Sadeghi Pour Marvi^*

Agricultural and Natural Resources Resaerch Center of Tehran Province

Abstract

Abstract
Fertilizer Use Efficiency (FUE) is one way of improving the fertilizer management in agriculture. In this study, spinach (Spinacea Oleracea) was used as a case study vegetable to determine its nitrogen use efficiency in Varamin, Iran. An experiment was conducted using split plot design with three replications. Treatments included of five levels of N as 0, 150, 200, 250 and 300 kg ha-1 and five levels of phosphate as 0, 37.5, 50, 62.5 and 75 kg P2O5ha-1. Both fresh weight and nitrate content of leaf were measured. The optimum value of FUE obtained by applying 250 kg Nha-1.

Keywords: Spinach Fertilizer Use Efficiency, Nitrogen