“The situation is critical,” says Nancy Rodríguez, who runs a produce stand at the Quinta Crespo market in Caracas. (Mary Beth Sheridan/The Washington Post) CARACAS, Venezuela — The lights are back on at Quinta Crespo, a bustling public food market in central Caracas. But after Venezuela’s worst blackout in history, there’s a sense of dread at Nancy Rodríguez’s fruit and vegetable stand. Word from the countryside is that farmers have been unable to find seeds and fertilizer. And the planting season is about to start. Everyone from Wall Street analysts to Rodríguez, who has sold carrots, parsley, bananas and garlic here for decades, worries that this will be the year Venezuela’s agricultural sector collapses. “The situation is critical,” said Rodríguez, 70, squatting on a plastic stool as customers handled her food, then moved on without buying. “There’s already very little production.” The five-day nationwide blackout this month was a […]