Response of rainfed bread and durum wheat to source, level, and timing of nitrogen fertilizer on two ethiopian vertisols. I. Yield and yield components

Response of rainfed bread and durum wheat to source, level and timing of nitrogen fertilizer on two Ethiopian Vertisols: II. N uptake, recovery and efficiency

Effects of timing and nitrogen fertilizer application rates on maize yield components and yield in eastern Ethiopia

Abstract Maize ( Zea mays L.) is an important food security crop in Ethiopia. However, low soil fe

Response of wheat yield and its components to zinc and iron application under different levels of nitrogen

To evaluate the effect of nitrogen, zinc and iron as soil application on yield and yield component o