Physics and chemical property：

DA-7, also known as Diethyl aminoethyl heptylate, it is white flake crystal, colourless and odourless, stable property, and easily soluble in water.

Function characteristics：

1. DA-7 has strong chelating adsorption function, and it can chelate absorption microelement and other nutrients in soil, reduce the loss of nutrients, increase efficiency of fertilizers, decrease fertilizer consumption, the use of this product reduces the environmental pollution caused by abuse of fertilizer. It can promote the physiological development of plants.

2. DA-7 can release nutrients in the soil, and prevent nutrient loss and infiltration. It can be used as a carrier for transport of fertilizer transport trace elements and other nutrients to the root of crops, facilitate crops absorption, make the root system developed.

3.  Non-hormone, it is the active substance needed for crop growth and development after degradetion, and has good ecological value.