OCR Text |
Show Cultivate Growing Crop, t'nder semi-arid conditions, culti-tatlon culti-tatlon la of prime Importance In preventing pre-venting the lose of moisture, aa has already been explained. In addition, lultlvatlon la of great value In kill-'ng kill-'ng weeds, and In getting air Into the soil. The oxygen of the air Is necessary neces-sary for the proper growth of the roots, ir.d for the support of certain cer-tain bacteria which work upon nitrogen nitro-gen for the use of th plant. It used to he a saying that "cultivation Is manure." Thla statement today will bardly pass muster, but by conserving conserv-ing ao'l moisture and by liberating plant food, the cultivation of the I crop accounts for a wonderful Increase In-crease In plant growth. |