The Looming Soil Phosphorus Shortage

by

Opinion

I sometimes feel a little bad for phosphorus. Nitrogen gets all the attention when it comes to fertility planning. Sure, most farmers are committed to throwing down a little phosphorus-rich starter fert, and, yes, nitrogen is needed in the largest quantities, but little ol’ immobile phosphorus is just not getting the respect it deserves. Even sulphur seems to get more hype these days, given the rapid increase in canola acres over the last five to 10 years. Western Canadian farmers are blessed with relatively young phosphorus- and potassium-rich soils. Add in good organic matter levels (though not great, and eroding…

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