 Strikes by producers at harvest time in 1991 forced the closure of the Choluteca refinery for a short time but had little effect on the depressed long-term outlook for the industry.While the total value of export merchandise fell in 1990 and 1991 and had still not recovered in 1993 to its 1989 level, the overall agricultural sector output has grown somewhat because of growth in the sale of winter vegetables and shrimp.Nontraditional vegetables and fruit produced $23.8 million in export revenue in 1990, a figure that was almost double the 1983 figure.