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The Key to Preventing NPK and Cal-Mag Deficiencies Hurting your Plants

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All New Homegrown PotCast
February 17, 2021
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Here You Will Find:

This week’s PotCast will look at solving the two most common types of nutrient deficiency. First up we will look at macronutrients before launching into the most common micronutrient deficiency.

NPK Deficiency

To start off NPK stands for the 3 major macronutrients cannabis requires to thrive and develop, now those are not the only nutrients that make cannabis grow happy and healthy, these are just the three major macronutrients. The N stands for Nitrogen, the P for Phosphorus, and the K for Potassium. These 3 major nutrients are very key to the growth of cannabis.

These 3 major nutrients bind to multiple macronutrients such as calcium, magnesium, zinc, manganese, copper, and more. When you, as a cultivator, incorrectly feed out of proper PH ranges, your cannabis plant cannot access specific nutrients. Each nutrient sits within specific ranges and is absorbed best in exact ranges, such as nitrogen is best absorbed at the 5.8 to 6.1 range with 6.0 being the exact range I find preferable with the best results of nitrogen uptake being 5.9 PH.

The P stands for Phosphorous and the K stands for Potassium, which both of these are much more heavily absorbed during flowering time.

Cal-Mag Deficiency

To begin we’ll start with calcium deficiency. Calcium is a macronutrient technically in plant cultivation but considered a micronutrient in cannabis cultivation as the plant may heavily uptake calcium, however it only utilizes large traces of calcium during the vegetative stage. Calcium also requires time to break down and bind to other nutrients to be absorbed.

Now that we figured out calcium let’s discuss magnesium. Magnesium deficiencies show up as a yellow fade that goes from the edge of the leaf to the center of the stem. Magnesium is an activator of specific enzymes that help with chemical processes along with being the main component being the development of chlorophyll. Chlorophyll is what allows the plant to photosynthesize and without chlorophyll that part of the plant can no longer take in photosynthetic active radiation from the sun and will eventually cause the plant to die off in that area if not eventually kill the whole plant.

If you want to find out how to prevent these deficiencies and more, then make sure you listen to the PotCast above!

If you want to get involved in the discussion and comment or question anything in this week’s episode, be sure to head over the the Homegrown Forum.

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