The highly competitive, adaptable and allergenic weed Parthenium hysterophorus (Composite) is an invasive annual weed believed to be introduced to Ethiopia in 1970s. Field surveys, plant biodiversity impacts, and analysis of secondary plant compounds in P. hysterophorus and its possible impact on human health have been studied in Ethiopia since 1998. The...

Field and laboratory studies were conducted in split plot design of three replications to determine effects of four sowing rates (50, 75, 100, 125 kg ha-1) and three row spacing (10, 20, 30 cm) on seed multiplication ratio, seed yield, and seed quality of wheat at Kulumsa and Assasa from 2012 to 2014. Results indicated that lower seed rates gave better...

This paper examines the tradeoff between commercial orientation and crop productivity among smallholder farm households living in drought risk-prone areas of the central rift valley of Ethiopia. The study was built on the hypothesis that there is a one-way causation between commercial orientation and productivity. The relationship between commercial...