Irrigation Farming: A Handbook for the Proper Application of Water in the Production of Crops

acre acre feet acre foot alfalfa alkali alkali soil amount of water applied bottom canal cement cent clay Colorado condition constructed corn cost crop cubic cubic foot cultivation depth diameter ditch drainage drouth early earth eight evaporation fall farm farmers fertilizing field flooding flow flume foot four fruit furrows gallons gate give grade grain ground grow growers growth head hight horse-power humus inches deep iron irri irrigation land laterals loam lower manure method miner's inches moist moisture necessary orchard pipe placed plank plants plat plow potash potatoes pounds pump quantity raise require reservoir ridges roots rows sand sandy season seed seepage shovel shown in Fig side six inches slope soak soil spring stream subirrigation subsoil sufficient supply surface tile tion tivation trees trenches twenty usually velocity vines vitrified wheat wheel windmill winter