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Show TREE CROPS FOR DRY LAMS Olives of Tunis Have a Sprtsd r: Depth of Roots Which Enab es ! Them to Use Stored Moisture. The French colony of Tunis is ;' ' ducing more than 10,000,000 g..'.' ." olive oil per year, and ex-ec; - -double that output within the i?-decade. i?-decade. A large part of the c: :;- 0 more than half of it, accord!:? -some estimates is produced cs where the average rainfall is at:-'. ": 0 Inches per year. This Is the point which has ac :: ing interest for a country '- much semiarid land as the 1: J States. Only a tiny part of our -' regions is suitable for olive c;.: ( but that is not the only tree which : s proved itself able to resist drc:;:-Why drc:;:-Why not make a systematic el-develop el-develop the commercial value of ' tree crops which can be raised i: -land of little rain? Grain lives or dies according tc -moisture it receives in a sicj.c ' son, and two months of r-weather r-weather may destroy a crop. olives of Tunis have a spres , depth of roots which enables . use the ground water stored '- " season for times of exec, drought. Is it not possible to i- -some other useful tree or shrub " can go without rain as wel. J; 1 olive, and which can stand the t-'--of our western plains? |