You can't actually compare them very well because commercial food production uses fossil fuel derived fertilizer to feed its yields. Small subsidence farms ofte

You can't actually compare them very well because commercial food production uses fossil fuel derived fertilizer to feed its yields. Small subsidence farms often don't use any fossil fuel derived fertilizer, and is thus infinity sustainable, but also low yield. Big commercial farms rely almost entirely on fossil fuel derived fertilizer, which is unsustainable unless we pull ass tons of clean renewable energy out of our butts to replace it, but have extreme yields. We can make artificial fertilizer without fossil fuels, but the energy cost is atleast 10x what our current usage is for fertilizer and is already over 1% of global power. And we are still a ways off of producing an extra 10% of global energy output via completely clean power.