Sell multi-functional nutritive foliar fertilizer

Composition of Penshibao:
Citric Acid, Amino Acids & Fulvic Acids       30%
Zinc (Zn) as Sulphate               0.3%
Boron (B) as Borate               1.00%
Nitrogen as Urea                 1.10%
Phosphorus (P) Water Soluble            7.20%
Potassium (K) as Phosphate             2.30%
Total Active Ingredients (min)            41.90%
Dissolving Agent                 30.00%
Water added to make 100%             28.10%
PH Value: 2-3       Max Biuret: 0.05        Density=1.18-1.20
The principles in the functions and performance of Penshibao foliar fertilizer
Penshibao foliar fertilizer is the most popular and widely used foliar fertilizer in China. It is the most prominent and effective multi-functional nutritive foliar fertilizer.
The major active ingredients of PSB foliar fertilizer are extracted from natural plant materials. Only bio-active materials are extracted as chief components with the addition of trace elements required by plants.
As the concentration of its working solution is low, i.e. 1:10000 or 100 ppm ( Note: the solution for 3000-5000 can get the best effect ), the quantity required for spraying an area of 1 hectare is only 75 ml of concentrate diluted in 750 litres of water. What are the substances in PSB which work with such low concentration when sprayed onto foliage.
After years of research and testing, the specialists at Penshibao Research Centre have established the five principles ,which contribute to the effectiveness in PSB as follows:
PSB contains sixteen types of amino acids, fulvic acids, five different types of Vitamins and sugar, various types of trace elements (TE) and plant growth regulator (PGR).