Jack's Professional 21-8-18 Mag Mum

Brand: Jack's

Jack's Professional is JR Peters' water-soluble range for commercial growers - over 60 stock formulas developed through years of testing in their own laboratory and commercial facilities. They are concentrated powders built for high-output powder injector systems, and formulated to go into true solution so the nutrients stay available rather than dropping out in the stock tank.

Jack's Professional 21-8-18 Mag Mum is for mum programs, with supplemental magnesium, supplied at a 21-8-18 analysis.

Why Growers Use Jack's Professional

• True solution - goes fully into solution so nutrients stay available and injectors stay clear
• Built for injectors - concentrated powder suited to high-output powder injection
• Consistent across the range - formulas are designed to be rotated and tank-mixed within the line
• Lab-developed - stock formulas tested in JR Peters' own laboratory and commercial facilities

Specifications

• Analysis (N-P-K): 21-8-18
• Form: Water-soluble powder
• Pack size: 25lb
• Brand: Jack's Professional by JR Peters

Mix and apply according to the manufacturer's label and your own water and substrate testing.