Humic Acid's Role in Improving Fertilization

Humic acid is technically not a fertilizer, although in some walks people do consider it that. Humic acid is an effective agent to use as a complement to synthetic or organic fertilizers. In many instances, regular humic acid use will reduce the need for fertilization due to the soil's and plant's ability to make better use of it. In some occurrences, fertilization can be eliminated entirely if sufficient organic material is present and the soil can become self sustaining through microbial processes and humus production.

info from -naturalenviro.com

Potassium phosphite contains Glutathione ! what is this ?

Glutathione

Function in plants

In plants, glutathione is crucial for biotic and abiotic stress management. It is a pivotal component of the glutathione-ascorbate cycle, a system that reduces poisonous hydrogen peroxide.^[21] It is the precursor of phytochelatins, glutathione oligomeres that chelate heavy metals such as cadmium.^[22] Glutathione is required for efficient defence against plant pathogens such as Pseudomonas syringae and Phytophthora brassicae.^[23] APS reductase, an enzyme of the sulfur assimilation pathway uses glutathione as electron donor. Other enzymes using glutathione as substrate are glutaredoxin, these small oxidoreductases are involved in flower development, salicylic acid and plant defence signalling.^[24]

source -http://en.wikipedia.org/wiki/Glutathione#Function_in_plants