Potassium Deficiency - Potassium is one of 3 important elements needed by all flowering plants to survive. its primary function is to assist the marijuana plants and absorbing nutrients from the roots and to regulates the photosynthesis process.
potassium also assist in water respiration,photosynthesis, stems strength and thickness and disease resistance, to put it plainly potassium is important for the health of your plant as a result it is important to ensure that it receives enough potassium to survive.
a potassium deficiency can be dangerous with potentially fatal effects and high probability of occuring during the flowering period. if the deficiency occurs make sure you are prepared avoid and even solve it.
Signs of a Potassium Deficiency - potassium deficiency can damage the plant if left unthreated, plants may begin to dry out as they lose their ability to move water, furthermore cannabis plants with the potassium deficiency would be unable to perform photosynthesis making it difficult for them to absorb light turn into energy necessary for growth and bud production.
potassium deficiency in marijuana is typically occurs itself on older leaves but not always, symptoms can be seen on top of the plants at times, whether there is potassium deficiency the edges and tips of the leaves turn yellow,orange or burnt, the burnt edges can resemble nutrient burn except the affected leaves begin yellow in the margins. Plants may strech is stems and may weaken but leaves symptoms are more apparent, the leaf symptoms match an iron deficiency and that may turn bright yellow but the tips of leaf curl while the edges brown burn and die
Solutions For Potassium Deficiency - whatever the cause of your potassium deficiency once diagnose its time to get work on restoring on your potassium levels heres how to do it depending on substrate your using.
in the soil increase CC for the couple of feeds to correct if using mineral nutrients, add soil additives with ash,sulfate, coco shells, etc. to increase potassium levels while growing organically, make sure the ph of the water/nutrients is in between 6.0 and 7.0.
specify that it is not a light burn when a cannabis plants keep too close to the grow lights its may expericience light burn which resembles a potassium deficiency, if you using powerful lamps such as LED or MH/HPS try shifting a light a few inches away to see if it prevents the problem from spreading , LED and MH /HPS bulbs can never be keep close them 12 inches apart, if the process is overly basic or acidic flush it PH neutral water allow the plants to recover for a few days before gradually reintroducing cannabis specific hydro fertilizer in to your hydrophonic setup this gives the plants time to adapt. check new plant growth for changes in coming days in a weeks. potassium like nitrogen and phosphorus is important for all plant life as a grower you must be aware of the symptoms of cannabis potassium deficiency as well hydro or out possible issue.
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