Some great analysis on P/ee for thought… err, Food Policy for Thought!
Since my post about nitrogen fertilizer is still one of the most successful ones yet (who’d thought?), and I’ve been working non-stop this week on a paper to analyze phosphorus and its resource, phosphate rock, for a paper in my class Economic Growth and Sustainable Development, I thought I’d give you some insights into what I learned. Sit tight, since there are definitely a couple of things you’ll be surprised by…
1. First off, you’ll remember that there are three macronutrients that are needed for plant growth – nitrogen (N), phosphorus (P) and potassium (K). A German chemist called Justus von Liebig actually discovered this in the 1840s; before, people thought that plants got their energy somewhat mysteriously from other plants and animals decomposing in the soil which would transfer their life onward – but then came organic chemistry and people rejoiced at a quick and easy formula to make…
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