The domestic rice industry of Ethiopia is constrained by low productivity, poor quality, and old processing machines. production system done hand or with rudimentary tools, only 2% households have access to tractors. It takes 175 labor days weed 66% the total farm operations. Rice harvesting threshing are manually using a serrated sickle animal trembling respectively. Farmers responsible for mo...

The main structural material in construction industry is concrete. article discusses the features of modern methods and means in-site transportation mixture that subsequently forms it and, particular, its supply to concreting blocks monolithic structures. requirements Russian norms for this process implementation, as well world practice using machines, equipment devices intended this, are analy...