aqueous solution of a substance capable of contributing focused to modify the ph and increase the activity of compounds used in agriculture as a fertilizer, antipas initiatives.defolianti and coagulant

摘要

A concentrate for dilution with water in the preparation of an agricultural composition for application to crops, soil or animals comprises an agricultural chemical whose agricultural activity varies with the pH of the water and a pH indicator for colouring the water, the proportions of pH indicator and agricultural chemical being selected so that when the concentrate is diluted with water to provide an effective concentration of agricultural chemical in the water ,the pH indicator indicates visually whether or not the pH of the water is suitable for acceptable agricultural activity of the chemical.