Show soils need air for total cro crop P growth increasing depth of aeration boosts yield stuffy soils that have little or no oxygen available to the plant roots that grow tn in them just are not able to support high crop yields hard working plant roots need oxy gen it if they are to do a good job ot of supporting the plant and collecting plant food tor for the above ground parts working with muck soil N K ellis purdue university and rich a ard rd morris U S soil conservation service found that when liberal quantities of oxygen penetrated the soil only four inches the yield of red beets sweet corn onions and chip it may pay to t so go deeper than this plow is 13 set cewa potatoes was small when the soils were ventilated to 18 inches the yields increased as much as 10 told fold when the depth of aeration was increased to 36 inches the yield of some of the crops was increased the yield of carrots went from 3 to 33 tons per acre when the depth of aeration was increased from 4 to 18 inches sweet corn yield went from 3 to 4 75 tons onions from 45 to 50 io pound bags red beets from 3 75 to 13 5 tons and potatoes from about 12 to bushels per acre oxygen in the soil for the use of the plant roots is the logical reason tor for the difference in crop yields adequate plant food was available on all the plots rainfall during the season was sufficient to eliminate water as a limiting crop production factor on the muck soils KNOW YOUR BREED blue game chickens A tradition that has been re corded by the historians of dela ware is that during the early day days of the revolutionary war the men of capt jonathan caldwell s corn com pany took with them game chicken chickens noted for their fighting ability these chickens were said to be the brood of a famo famous us blue hen company soon con s received the blue hen hens s chickens the state of delaware in 1939 adopt ed the blue hen a chicken as state bird the photograph shows a blue resulting from a cross of sumatra cock and blue white hen as developed by USDA trough and bath pen this drinking trough has an over flow pipe to carry water to larger trough the eliminates the need for float valve unique drinking tough and bath pen courtesy james F lincoln foundation the pipe also serves as a part the fence the water in the and lower trough is earned carried by an overflow pipe treating turkeys for blackhead recommended A little item on a large appeared recently in the publication of the american veter inary medical association I 1 im in e t h y I 1 benzyl ammonium chloride it seems bas has been recommended by veterinary authorities as a pre bentive of naturally occurring en tero hepatitis of boults Ente rohe batitis Is a disease more common ly known as blackhead |