+ Increase plant’s chlorophyll content and promote the photosynthesis. + Improve utilization of nutrients by overlay with other NPK fertilizer. + Can be absorbed by all parts of plant directly and also can promote plant growth, early maturity and delayed leaf senescence late crops, to increase production. Shorten the growth cycle of crop. + Improve crop quality and increase plant protein; + Clean, pollution-free and help improve the ecological environment. + Enhance metabolic function and adversity ability.