Show INCREASE YIELD PER ACRE quantity ct cf water required to produce grain becomes smalle as fertility Is 1 improved one of the most important recent discoveries in the handling of crops and especially of grain Is that in reference to the relation ot of soil eoll fertility and moisture experiments havo have brought proof that the quantity of water required to produce a bushel of grain becomes smaller as aa the fertility of the soil increases it requires twice its as much water to produce a bushel of grain on an infertile soil eoll as it does on fertile soil in good says the kansas kanbas farmer tests testa showing this result have been made both in europe and america in every case the more fertile soil either through tillage or the use of manure or ot of commercial fertilizers the less the amount of water necessary tor for the production of each bushel of grain the greater portion of the plant food in the soil la Is inert until by deep plowing thorough tillage and early prepa ration it la Is made available to the plants such treatment holds moisture deeper in the soil the air and the gases work on the inert earth and the moisture mo latura helps dissolve the plant food increasing the number and action of bacteria in the soil these bacteria manufacturing plant food from the earth particles A wheat grower who gives his fields the minimum amount ot of tillage only disking his land does little toward toward making the fertility available and 2 pounds of water or more may be required in his fields for each pound of wheat harvested the grower who follows the plan of shallow plowing secures some increase in fertility but not enough to use the moisture to the best advantage early preparation of land deep plow ing ng and constant cultivation until it Is in good with spring bar harrowing rowing makes the soil so fertile that only about one half as aa much moisture la is re quiren to produce a bushel of grain as it required with slight preparation intensive tillage secures double the service from the rainfall commercial fertilizers and manure after becoming thoroughly incorporated in the soil have the same effect rotation with legumes and summer fal lowing similarly increase the grain producing effect of the rainfall this la is the surest vay to double or treble the yield per acre |