Show IN INCREASE REASE YIELD PER ACRE quantity of water required to aror duco duce grain becomes become smaller as ai fertility Is IB improved one of the most important recent discoveries in the handling of crops nd especially ot of grain brain to la that in n reference to the relation of soil eoll forti fertility lity and moisture experiments Expert menta havo have brought proof that the quantity of water required to produce a bushel 0 at grain becomes smaller as the forti fertility litY of the soil increases it requires ulrea twice an aa much water to produce a bushel ot of grain on an infertile soli soil as it does docs on fertile soil in good says the kan sas baa ri farmer armer tests testa showing this re r suit have been made both in europa ani an av i 1 america in every case the more mor fertile soil boll either through tillage ol of the use of manure or of commercial fertilizers the teas less the amount ol of water necessary tor for the production ol 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 preparation it 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 helps dissolve the plant food increasing the number and action ol at bacteria in the soil these bacteria manufacturing plant food from the earth particles A wheat grower who gives his fields the minimum amount of tillage only disking hla his land does doea little toward making the fertility available and 2000 pounds of water or more may bo be required in his fields for each pound ot of wheat harvested the crovi grower or 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 plowing and constant cultivation until it la Is in good with spring harrowing makes the soil so fertile that only about one halt half as much moisture la Is required to produce a bushel of gr grain it I 1 n as aa 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 way to double or treble tho the yield per acra acre |