The Relation of the Fertilizer Industry to the Agricultural And Industrial Development of the Country
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At a recent convention in Hartford, Dr. Jenkins made the following state- ment: "Fertilizers for most soils and crops are necessary for the highest production and, when rightly used, for the highest profitable production." Director Thorne of the Ohio Experiment Station has recently summed up in Circular 144 an instructive series of experiments covering twenty years with fertilizers. They show that complete, available mixtures, containing nitrogen, phosphorus and potash, gave the largest yields ...of corn, oats and wheat in five-year rota- tions, including timothy and clover. They show a gain over check plats where nothing was applied of 57 per cent, in oats, 60 per cent, in corn, 126 per cent, in wheat, with the soil practi- cally holding its own; in fact in the case of corn, where the best 10 balanced mixture was used, there was a gain of four bushels an acre in the last five-year period over the first five-year period. We might quote similar convincing experiments elsewhere, if time permitted.
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