How to increase the number of soybean seeds/plant

The seed production per plant is determined by the amount of nodes as the amount of flowers per node is genetically determined and does not alter much.

The same goes for pods per node. Therefore the aim must be to develop as many reproductive nodes per plant prior to flowering (before stage R1). Factors that influence in the development of a good canopy prior to stage R1 will all contribute to achieve the production goals.