The effect of fertilization and spacing on the yield and composition of soybeans

Among the agricultural crops of the United States soybeans, Glycine max. rank fourth in value. The response of this crop to direct fertilization and spacing between rows is inconsistent. The reasons for the lack of response are frequently not known. It has been suggested that one of the important phases of research on soybean nutrition might be to study the relationships between spacing and the nutrient needs of the crop. One phase of this study pertained to the response of soybean yield components to varying fertilizer application and different spacings between rows.

Soybeans generally respond to lime applied to acid soils. These responses are in part related to the availability and uptake of other nutrients. A greenhouse experiment to determine the influence of lime and potash on the growth and composition of soybean plants was conducted.