22—Lancaster Farming. Saturday. April 6.1968 • Nutrition (Continue.! from Page 17) lion tons on January I. 1968- in sharp contrast to only 7.6 million tons 4 years earlier. Further expansion of the ni trogenous fertilizer industry will depend largely on how the mar ket reacts to increased supplies in the coming 2 or 3 years. Meanwhile, a goal of industry research is to fix atmospheric nitrogen at even lower unit cost. Phosphorus -is found in all rocks, but concentration usually is too low for economic recovery of the material. Workable re serves have been found in only a few parts of the world. By far the largest known deposits are in North Africa, followed by those in the U.S. and the USSR. About 80 percent of U.S. phos phate ore is mined in Florida. Around 40 percent of total U.S phosphate rock production is ex ported. Imports are small. Development of North Caro lina phosphate rock fields, along with operations in Florida and the Western States assures an ample domestic supply of phos phate rock for some time. However, supplies of sulfur— widely used as sulfuric acid with phosphate rock in fertilizer man ufacture are limited Though new domestic deposits are being sought, they are slow to come into production. Sulfur supplies are now ex tremely tight. Domestic con sumptior has been outpacing production since 1962, and prices have been rising With the ris ing prices, some manufacturers may shift to another ingredient Nitric phosphates, made with ni tric acid, have been turned out successfully in Europe for many years. And U. S processors of fertilizer ingredients may find it necessary to follow suit. Potassium occurs m over 50 chemical compounds in rocks and in water solutions (brines) Developed world reserves are large. Except for Chilean potas sium nitrate deposits, they are practically all in the Northern Hemisphere. New, deep Canadian potash mines in Saskatchewan are be lieved the richest in the world —an estimated 70 to 100 times bigger than U S reserves which are mainly in the Carlsbad, New Mexico, area The U S has been, and con tinues to be, a large importer of potash from Europe—and more recently from Canada These imports will increase in volume, especially trom our neighbor to the north. Looking ahead at fertilizer prospects in general, the follow ing trends are indicated: —A continued rise in quality as well as demand. —More ways of including car riers of micro and secondary mtnents along with the primary elements. —lncreasing use of bulk-blend ed and liquid fertilizers. —Stepped up granulation of ;ohd fertilizers to around the 90 percent level in about 5 years —More competitive emphasis on product condition, prices, and services (because the products of different manufacturers are close substitutes within most class and grade categories of plant nutrients). —Shortening of distribution channels, as some basic pro ducers will tend to deal direct ly with users through company owned outlets And what about prices? In contrast to most of a farm ers’ other inputs from industrial sources, fertilizer prices have been relatively low to date. And as new technology continues to stimulate a sharp expansion in output, the fertilizer industry is likely to maintain its moderate . < * ?v A Jt. y V ** *><•* <' s > N •< ' * •*>«.' > v< ' *, < - ■v s v«v , ■Vy % s s W* *' ■. VS *»■■* 'WfX*' V i ' V '-- l ' ~ ‘ 't, Need a hog farrowing house one that's warm and weather-tight easy to ventilate and in sulate and sized for the pen arrangement you have in mind? You can get it with Panl-Frame. Want a dear-span machinery storage build ing with plenty of room to maneuver your largest machines and big slide doors for easy access? Again the answer is new Butler Panl- Frame. Or are you looking for a big, low-cost cattle shelter with one side open a minimum number of inside supports and accessories designed to match your exact requirements? Make it Butler Panl-Frame, the versatile build ing system. To help you, Butler agricultural specialists have developed building plans for these and many other end uses. DESIGNERS and BUILDERS of SYSTEMS R. 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