BLOOM A&B – THE SCIENCE
To take in a positive ion a plant has to release a proton (+). This proton when released into water will add a positive load creating a Hydrogen (H+) particle. This H+ particle will bring the pH down in the rootzone/substrate. A flowering plant acidifies the substrate. There is also NH4 in the Bloom recipe to regulate the internal pH of the substrate as the up take of K+ on its own does not release enough H+ particles to keep the pH optimum.
The remaining Nitrogen needed for making amino acids to build the flowers is given in the form of the anion nitrate (NO−
3). When a plant uptakes NO−
3 an electron (−) is released into water adding a negative load which creates a hydroxide (OH−) particle. This OH− particle will bring the pH up in the root zone/substrate.
Also other cations like Calcium (Ca2+) and Magnesium (Mg2+) are decreased to the right amount to make sure the plant gets the correct level of K+ it needs in order to allow flowers to reach their full potential.
Flowering plants which acidify the substrate too much can create an absorption problem of most nutrient elements. Early autumn colouring in the leaves is often the result.