Jun

26

Adam Grimes comments:

Cool chart. Interesting data. We have some farmers in the family but I would not have expected such a big difference.

Peter Ringel writes:

I think, this productivity boost shows Norman Borlaug‘s Green Revolution. There would be no India or China as we know it . And in the West too. The topic seems close to not being politically correct in our upside-down world.

Michael Ott brings expertise:

The Y axis is Mg/hectare, which is a different way to measure weight per unit area. Technically, a bushel is a unit of volume (8 gallons) that is understood to be equivalent to 56 pounds of corn or 60 pounds of soybeans. Most US farmers measure in bushels per acre, which is a different way to express weight per unit area.

The major increase in corn came from breeding AND fertilization. GMO corn was introduced in 1996 and reached 50% market share around 2001, which is pretty fast adoption for agriculture. Biotech traits certainly help with yield, but more so prevent disasters from insects and weeds, which harm yields.

Big Al finds another chart interesting:


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