Show In soil fertilization the biggest yield is the payoff THE FIELD Fertilizers can be an aid to higher yields and more profitable Within reasonable limits the total nutrient requirements of the good crop yields are available to the It must be determined what contribution the soil will make toward these total plant food It is necessary then to take inventory of what is available in the soil of a particular field in Knowing the amount needed and the inventory of what is on not difficult to determine hand it is the fertilizer in kind and amount to make up soil deficiencies i 1 r First in America The Chemistry of coal yields a rich harvest in high-grade nitrogen fertilizers at the new Nitrogen Plant at U. S. Steel's big Geneva Works near first of its kind at a major steel mill in United At this chemical coke oven gas from operations is converted into anhydrous ammonia which is stored in the two big Some of the anhydrous ammonia goes to produce ammonium This nitrogen-rich fertilizer is converted into solid form as in the tower Ammonium a third member of the fertilizer is turned in another section of Geneva's coal chemicals producing THE FIELD OR soil Lory can be accomplished by a soil The soil test coupled with a knowledge of previous crops grown and any manure applications for the current and past years can pinpoint quite well the supply of nutrients available in the From the extra need of nitrogen can be determined to meet the yield goal established General fertilizer recommendations can't possibly be as exact or accurate as fertilizer recommendations based on a soil The application of needed is not an expense but an From the nutritional standpoint the crop yield is limited by the supply or level of the most deficient plant which is usually nitrogen or It is particularly important to 1 apply the specifically needed fertilizer to the right soils or ALL COMMERCIAL fertilizers are required to be labeled i A chemical analysis is required j by law and must be shown on a j tag or on a bag of commercial j This analysis will give the total the available and the water potash that is in the By observing the a fertilizer purchaser can tell first if the fertilizer contains the or he and second the quan that he will be getting per In the product that has the cheapest cost per pound of N or would be the most convenient to is the one |