Fish Agra Foliar Concentrate (4 – 1 – 1) is effective when plant is under stress. Proven to increase antioxidant (SOD) activity. Natural chelating agent. Provides slow release of nitrogen for 15 weeks. Compatible with most fungicides, insecticides and herbicides. Fish Agra is Blended to produce active high energy soils. Filtered for easy spray or use in fertigation system. Increases cation exchange capacity. Increases plant cell membrane permeability. Turns on chlorophylase. Compatible with most fertilizers, pesticides, herbicides, and fungicides. 100% soluble, sprayable, screened through #80 mesh.