Maximum Yield USA 2012 March | Page 69

“ Although calcium supplements at hydroponic stores are sold separately from the actual base fertilizers, calcium is so integral to basic plant functions that it should be considered part of your base formula. ” Blooming Additives There is a multitude of fertilizer amendments for crops that have a fruiting/flowering stage. Most blooming additives can be divided into three categories: initiators, mid-blooming and ripening formulas. Blooming initiators are products specifically designed to help the onset of fruit or flower sets—as a plant transitions into a blooming period it produces specific hormones for fruit or flower production and most blooming initiators target these particular hormones. Mid-blooming additives are products designed to be used through the stage of actual fruit and flower production. These products are meant to either boost or enhance hormonal production or to supply a higher amount of the nutrients commonly used during that particular stage. For most fruiting or flowering plants an increase of phosphorus and potassium will heighten hormonal response, creating larger yields. In my opinion, the best mid-blooming enhancers contain slightly more potassium than phosphorus and are best used from the time when fruit or flow \