The use of a one or more Isoflavonoid compounds which may be with an agriculturally acceptable carrier, applied prior to planting, directly to the seed, a legume crop, for the purpose of increasing yield and/or improving seed germination and/or improving earlier seed emergence and/or improving nodulation and/or increasing crop stand density and/or improving plant vigour and/or improving plant growth, and/or increasing bimoass, and/earlier fruiting, all in circumstance of seedling and plant transplanting.
