Agricultural Engineering is the engineering discipline that studies agricultural production and processing. A key goal of this discipline is to improve the efficacy and sustainability of agricultural practices. Agricultural engineering is concerned with tasks such as planning, supervising and managing the building of dairy effluent schemes, irrigation, drainage, flood water control systems, performing environmental impact assessments, agricultural product processing and interpret research results and implement relevant practices. Some are consultants, employed by private engineering firms while others work in industry for manufacturers of agricultural machinery, equipment, processing technology, and structures for housing livestock and storing crops. Agricultural engineers work in production, sales, management, research and development, or applied science.