Mobile nutrient deficiencies will show symptoms in older cannabis leaves at the base of the plant, while immobile nutrients will show the first signs of deficiency in newer growth at the top and outer branches of the marijuana plant. Knowing which nutrients are mobile and immobile will help you diagnose potential deficiencies.
Essential nutrients for marijuana plants and symptoms of deficiencies
Knowing the signs of nutrient deficiency is essential for growing weed. Check out our resource on what nutrients cannabis plants need, and here we’ll talk about how to identify and correct nutrient deficiencies.
Identifying cannabis nutrient deficiencies
When identifying nutrient lockout, test the pH of your water, as it can vary widely depending on the source. It should be between 6.0-7.0. When the pH is too high or too low, nutrient availability plummets and your plants can’t absorb nutrients.
In the beginning, bud rot attacks a plant’s stem, which will appear mushy and gray. As the infection progresses, signs of bud rot are characterized by wilted, yellow and burnt leaves. It’s tricky to spot bud rot ahead of time because the fungus first takes hold inside the plant and works its way to the outside.
How do I know if I have bud rot?
Bud rot, or botrytis, is a common fungus many cannabis growers face at some point, especially those who are unfamiliar with controlling humidity and air circulation.
We’re HEre to HELP
“If you’re trying to save what you can, at the first sign of bud rot, remove infected buds carefully and don’t expose them to any other plants,” Watson said. “Wear gloves to remove and discard infected buds and place them in a sealed container so spores don’t spread throughout your grow room. Be sure to sanitize or toss any garden equipment used in the process, such as trimmers.”
The amount of water that the plants are being fed is another factor that can affect nutrient uptake. If a cannabis plant is not being fed enough water, it won’t be able to absorb enough nutrients. Conversely, if a cannabis plant is being watered too often, it won’t be able to absorb enough nutrients.
The fact of the matter is that the cannabis plant can be finicky with hurdles and issues popping up during the cultivation process. One very common problem is cannabis nutrient deficiencies. Marijuana plant deficiencies come in many forms, knowing how to spot them and how to fix them is crucial to success.
One of the most important things that every cannabis cultivator can do is a daily visual inspection. It is likely that many cannabis cultivators stare at their plants probably more than they should, however, many make the mistake of not inspecting their plants often enough. Whether it’s bugs, temperature, disease, some type of equipment malfunction, or nutrient deficiencies, it does not take long for a cannabis garden to be ruined, which is why constant monitoring and early intervention is key.
If a cultivator can confidently determine that it is indeed a nutrient deficiency or deficiencies that they are dealing with and that it’s not some other type of factor, then early intervention is extremely important. If a plant is truly experiencing one or more nutrient deficiencies it does not take long for the plant to be harmed to the point that it cannot be salvaged.
Is It Really A Nutrient Deficiency?
It is a virtual guarantee that if you cultivate long enough, you will run into nutrient deficiencies. Educating yourself on common types of cannabis nutrient deficiencies and being prepared ahead of time very well could be the difference between you salvaging your harvest or having no harvest at all.