Translating research into agronomic insight
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The Red Book on macronutrients: Read about fertility research dating back to the early 1900s. The Red Book – ‘Impact of macronutrients on crop responses and environmental sustainability on the Canadian Prairies’ – is the basis for many of today’s fertility recommendations. Read it.
In a new, 2019 review of P fertility research, 4R Management of Phosphorus Fertilizer in the Northern Great Plains: A review of the Scientific Literature, the authors built upon the Red Book’s Chapter 2 on Phosphorus by incorporating research conducted since 1993, and aligning the research review with 4R principles.