Once a flush is performed, your system will be completely saturated. The soil needs to dry out before watering again to allow the roots to breathe and avoid developing root rot. After a flush, you may continue to water your garden normally for a few more cycles before introducing nutrients again.
Nutrient lockout will resemble nutrient deficiency; the plants will be weak and flimsy with stunted growth. Any yellowing or curling of the leaves also indicate that the plant is experiencing nutrient lockout.
Chemical fertilizers are salt-based, and these high salt concentrations tend to cause nutrient lockout. Look for nutrients with a low salt content or stick to organic nutrients exclusively.
- Your cannabis garden is oversaturated with nutrients, particularly chemical fertilizers with a high salt content
- There are unsuitable pH levels in the soil, water, or nutrient solution
Nutrient lockout is a problem that can be remedied as long as you’re paying close attention in your garden. Keep logs of your feeding schedule, observe your plants daily, and record what you notice before and after feedings. Cannabis plants respond rapidly to changes in their environment, which often makes them easy to care for under the eye of a vigilant, observant gardener.
If pH isn’t the issue, take inventory of your plant’s nutrient diet. Have you been feeding your cannabis heavily? If so, try flushing your plants to free up the nutrients.
Once your plants are experiencing nutrient lockout, you’ll need to act quickly to reverse it and free the nutrients. Otherwise, they will become nutrient deficient and begin to die. To protect your plants, you’ll need to know how to identify nutrient lockout as well as how to correct, or better yet, prevent the issue altogether.
If you’re growing in a hydroponic setup, you should generally check your pH multiple times a day. It’s easy to monitor and correct nutrient lockout simply by adding pH buffers.
Identifying nutrient lockout can be difficult. Your cannabis plants may look underfed when in fact the problem is being created by overfeeding, pH variations, or other stresses on the plant.
Learn about nutrient lockout in cannabis, including the signs and symptoms, how to fix it, and what you can do to prevent it from happening.
If a nutrient, or multiple nutrients, show up in high concentrations then nutrient lockout is occuring.
Your soil or solution should be checked weekly or bi-weekly to insure a healthy medium for optimum growth. This will allow you to ward off nutrient deficiencies and lockout. It will also lead to a more connected relationship with your plants. This gives you the ability to take action in the event that something does need adjusting.
When air is blown at the plant directly for extended periods of time the plant can become wind burned. Its leaves will curl and it will droop because of this. The wind is effectively dehydrating the plant.
If the soil drys out too much the plant will droop and its leaves will yellow and dry out. This can happen if the plant is not receiving enough water. To test this place, a finger into the soil and see how it feels.
If you are having to pre-drill your own drainage holes, mimic the patterns of pots with holes. One medium hole in the middle or a half dozen small holes in a circle should do the trick.
To remedy wind burn, do not water the plant. Simply adjust the source of air, be it a fan or air conditioner to an oscillating mode or above or below the plants. This will allow air flow to continue but not be so harsh on the plants. If your plants are growing outdoors, you may need to be more creative to prevent airflow.
Early growers view the dead leaves as under-watering, then water the plant more. This can compound the issue making it worse. Plants love moist to dry soil. Not soaked and mucky, and not bone dry.
Organic fertilizers are a great way to give your plants the minerals they need in a format they can absorb in a natural way. The levels in organic fertilizers are lower than their chemical counter parts. This makes for easier ingestion for the plants and more importantly less salt in the soil. As chemical fertilizers are notorious for having higher salt levels which lead to nutrient lockout.
To remedy a mineral based lockout, flush the soil. This means watering the soil for an extended period of time to severely dilute the concentration of minerals or pH. Be sure to use pH neutral water when flooding your soil. This will allow for a clean reset and let the plants to come back into a safe and stable state.
Nutrient lockout is when the soil, or soil medium, is overloaded with nutrients or has a pH that is too extreme. Nutrient lockout restricts the pant from feeding.