PKB 16/21

Professional fertiliser PK flowering additive with the completely unique PK ratio of 16/21 and added Boron The proactive PKB Methodology... PKB will enhance photosynthesis, ensure water regulation and have a significant effect during the blooming stage when plants need PKB the most. ProActive PKB 16/21 is complemented with Boron in a selected and pure form to ensure maximum efficiency. Boron can play an important role and help to increase yields and imp..

£39.95