Many factors can contribute to thinner stands.
Which may require replanting. You must consider many factors in making this decision. Some factors include the cost associated with replanting, influence of later planting, uniformity of the partial stand, weed control, and the physical condition of the remaining plants. Remember, soybean plants have a tremendous capacity to compensate for thin stands. If the stand is within 50 percent of the recommended population, replanting would probably not be advisable if weed control is good and the remaining plants are healthy.