Die Bodenkultur - Journal for Land Management, Food and Environment

A. T. Munir:

Influence of varying seeding rates and nitrogen levels on yield and yield components of barley (Hordeum vulgare L. cv. Rum) in the semi-arid region of Jordan


A 2-year study was conducted in northern Jordan to assess the influences of varying seeding rate and N levels on yield and yield components of barley. Seeding rate of 229 plants m-2 produced maximum grain weight plant-1, highest number of spikes plant-1, grains spike-1 and maximum thousand grain weight. Whereas at the density of 400 plants m-2, a maximum yield of 1753.3 kg ha-1 was obtained owing to the greater number of plants per unit area. Among N levels, the highest grain weight and grain yield was obtained under 45 kg N ha-1. It is further inferred that there were still chances to increase the seeding rate and N levels to exploit the maximum potential of the studied cultivar.

Key words: grain yield, fertilizer, harvest index, water-stress, yield compensation.