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What a plant actually eats
Seventeen elements, most of them in traces. More fertilizer isn't more food. It's mostly salt and wishful thinking.
Not written yet
What you'll learn (once I've written it)
- ✦Mobile vs immobile: why old leaves tell one story and young leaves another
- ✦Iron chlorosis vs magnesium deficiency: same yellow, opposite cause
- ✦CEC in plain words: why clay and humus hold lunch and sand lets it slide