Abstract: Herbicidal compositions comprising a post-emergence herbicide and tetrapotassium pyrophosphate as the spray adjuvant. The compositions are suitable as foliar sprays for controlling undesirable vegetation without causing damage to crops. The tetrapotassium pyrophosphate spray adjuvant has surfactant and plant nutrient characteristics and functions synergistically with the herbicide to increase its level of absorption into plant tissues and to stimulate both the target and non-target plant species to growth responses for increased herbicide efficacy.

Abstract: A plant growth enhancing composition comprising as an active ingredient a synergistic mixture of (a) gibberellins, (b) the heteroauxin indole-3-acetic acid and the cytokinin 6-(4-hydroxy-3-methyl-2-trans-betenylamino) purine in definite proportions. Application of the composition to the locus of various plants or to the seeds of a plant produces a wide variety of plant growth enhancing responses including, increasing yields; stimulating seed germination and breaking of dormancy; increasing flowering and fruiting; preventing lodging and freeze injury; aiding in the recovery of damaged crops and increasing root proliferation.