Mixture of microelements, manganese (mn sulfate) and zinc (zn sulphate)

Package: Bottle 1 kg, Tank 6 kg, Tank 25 kg
Application: Leaf and soil
Consentito in agricoltura biologica - Menfin

Allowed in organic farming

Compliant with EC Regulation No. 834/2007 of June 28, 2007 pursuant to Legislative Decree No. 75/2010 of April 29, 2010.


PRO-PH is a powerful acidifier projected to correct the basic pH of the solutions for leaf treatments. 

PRO-PH enhances the effectiveness of agrochemicals and herbicides, avoiding their inactivation caused by the water alkalinity. It also contributes to neutralize the detrimental salts present in the water. 


Manganese (Mn) soluble in water … 0.5 % W/W

Zinc (Zn) soluble in water … 1.7 % W/W 

Doses and application

PRO-PH is added to the solution in the final stage of preparation. 

PRO-PH can be mixed with most of the agrochemicals; however, it is advisable to perform compatibility tests with products based on sulfur and/or copper. 

As a rule, use 50 ml of PRO-PH every 100 liters of solution. 

If the water used or some dissolved product causes a pH increase at very alkaline values, a maximum dose of 100 ml/hl can be reached. 

We recommend the farmer to investigate about the ideal pH for plant protection products. In case of doubt, is recommended to consult a technician.