A midwest American farmer tills his field with a horse-drawn disc plough prior to planting his soybean crop. Richer in protein than most meat, soybean also contains many vitamins and minerals. Soy flour is used to make artificial meats and is an important food in times of famine. Soybean oil is used in the manufacture of various foods, household products and agricultural sprays. Over half of the world?s soybean crop is now grown in the United States. - - General: General.