For most of the twentieth century, soybeans were an American crop. The United States grew more than everyone else combined for decades. That is over. On the 1990 to 2024 production figures, Brazil produces about 144 million tonnes against 119 million in the United States.
The interesting part is not the overtake. It is the growth rate behind it. American output roughly doubled over the period, from 52 to 119 million tonnes, which is a strong performance for a mature agricultural economy. Brazil's went from 20 million to 144 — more than sevenfold.
The whole continent moved, not just Brazil
Argentina grew from 10.7 to 48.2 million tonnes. Paraguay went from 1.8 to 11.1. Bolivia, from a base so small it barely registered, is now above 3 million. Add them together and South America produces well over 200 million tonnes of a crop it was a marginal player in fifty years ago.
This did not happen through gradual improvement. It required a specific technical unlock: soybeans originally would not grow well in the Brazilian cerrado, the vast tropical savannah of the interior, because the soil is acidic and low in nutrients. Brazilian agricultural research produced varieties adapted to those conditions and to a tropical day length, and the cerrado went from cattle scrub to one of the most productive agricultural regions on earth.
Why anyone wanted that much soy
Almost nobody eats these soybeans directly. They are crushed into meal, and the meal is fed to animals — mostly pigs and chickens.
That connects the whole story to a single change in consumption. As Chinese incomes rose through the 1990s and 2000s, meat consumption rose with them, and industrial-scale pig farming needs protein feed at a volume no domestic crop could supply. China now imports more soybeans than the rest of the world combined.
So the expansion of the Brazilian interior is, in a real sense, a downstream effect of what a billion people started putting on their plates. The chart shows tonnes of a legume. What it is actually measuring is a dietary shift on the other side of the planet.
China grows soy too, and it does not help
China appears fourth on the list at about 20.7 million tonnes, up from 11 million in 1990. That looks like meaningful growth until you set it against demand: Chinese imports run several times its own production. The country made a deliberate choice decades ago to prioritise self-sufficiency in grain for human consumption — rice and wheat — and to accept import dependence on animal feed. The soybean figures are the visible result of that policy.
What the ranking does not show
Two things are worth holding in mind when reading any production table like this one.
The first is land. Soybean expansion in South America has come partly from converting cerrado and, more contentiously, from pressure on the Amazon frontier. A tonnage figure carries no information about what the land was before.
The second is concentration of risk. When three neighbouring countries supply a majority of a globally traded commodity, a drought across southern Brazil, Argentina and Paraguay hits all of them at once. That is not a hypothetical — correlated South American droughts have moved world soybean prices sharply more than once in the last decade. The old American-dominated market had its own problems, but it was geographically hedged against exactly this.