What are the true macro nutrients that you need to worry about on your farm? Ever since the dawn of synthetic fertilizers, we've had the three letters NPK drilled into our minds. But it's really carbon, hydrogen, and oxygen you need to support the health of your soil, your crops, and your farm. Here are some key points from our discussion about this crucial topic:10:55: Carbon, hydrogen, and oxygen as macronutrients17:45: Have we gone too far with synthetic fertilizer use?28:00: Why do plants' leaf tips burn first? What is this telling you?42:10: What are humic/fulvic acids, and are they actually acidic?1:08:45: You depend on soil biology to make nutrients available to plants.

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