Allelopathically active compounds of weed plants and scientific principles for development phytoregulators with herbicide-like action

On the basis of allelopathic properties of donor plants, viz. Cirsium arvense (L.) Scop., Barbarea vulgaris R. Br., Fumaria officinalis L., preparation technology of herbicide like phytoregulators with active substances – polycomponent mixtures of phenolic compounds. Chemical composition of above-mentioned plants has been investigated at the first time. At that the compounds of lipid and phenolic nature with high growth inhibiting activity have been isolated.