Members of a new farmers co-op plan to begin construction this summer on a soybean crushing plant in southwestern Minnesota, with the help of some Iowa producers. Minnesota Soybean Processors chair Bob Kirchner says the average farmer invested 12-thousand dollars in the project.Some 23-hundred farmers from Minnesota, South Dakota, Iowa and Illinois raised about 28-million dollars. Kirchner says the new plant will add at least 50-cents a bushel to the value of soybeans it processes. The plant may also someday produce a soybean-based diesel fuel.