| OCR Text |
Show DRY FARMING IS NECESSITY Vast Area Cannot Be Irrigated and Must Remain Uninhabitable Unless Dry Farm Methods Used. (Br i H WORST. Mwfh DahMa tsrt. tural Cnll.a The fact that nearly half the earth's surface Is visited with less than twenty twen-ty inches of annual precipitation Bakes dry farming a necessity. Ilut s fraction of this vast area Is sua-septlbte sua-septlbte of Irrigation under any circumstances. cir-cumstances. What cannot be Irritated Irri-tated must be cultivated by dry-larmlng dry-larmlng methods or remain unlnhablty ible and practically useless, for hi sian genius cannot remove natural barriers, such as mountain ranges, which place a limit open precipitation. precipita-tion. It can, however, suggest roeth-Js roeth-Js of agriculture that may be ad-lusted ad-lusted to local conditions; methods it Ullage that will prevent the nn-secessary nn-secessary evaporation of aoll moisture, mois-ture, together with the breeding of slants, themselves economic of mols-are. mols-are. These factors taken together win ;end to make agriculture not only roccessful, but profitable with lees alnfall than In humid districts where, ta a matter of fact, the total preclpl-ation preclpl-ation during the year Is frequently 'mx In excess of the needs ot the rowing crops. Moreover, excess of nolature la likely to pro-re as destructive de-structive of crop aa deficiency ot Dolsture and far mora Injurious ta bo land. The fact must be admitted (hat the ewanope and the aea receive l tremendous anaual toll of plant food asaltlag from the "run -off" of humid SMatriea. This Vasa of fertility, rnlch la beyond estimate, must be aada goed by aome means, so that tetweea rwetorlag wet fertility and aatalUag dralaage systems, the kamld Issaatrlea are sjatta aa severely vexed the eemtarU aoaatiiea. |
