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New Research Suggests Declining Levels of Phosphorus, Potassium

Although farmers have achieved yield increases over the past several years, new data suggest that the trend of soil nutrient removal rates are outpacing fertilizer application rates in most states. PotashCorp's eKonomics program released an in-depth, state-by-state analysis of the 2015 soil test levels in North America issue by the International Plant Nutrition Institute (IPNI). eKonomics combined IPNI data from 2005, 2010 and 2015 and presented it alongside nutrient balance data.

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