The right nutrients are essential for healthy cannabis growth. If your plants are lacking vital nutrients, the yield is going to be much smaller. Multiple signs can alert you of nutrient deficiencies.
- The leaves suddenly develop brown edges that appear scorched
- The leaves begin to yellow
- The leaves start to die
- The leaves begin to droop
If you notice any of the above, immediate action must be taken. The leaves of a cannabis plant are always the first part to start showing signs of nutrient deficiencies. Make sure to check your plants daily for any signs of problems with leaf growth.
Three macronutrients are vital for healthy plant growth and high yield. Nitrogen, phosphorous, and potassium are all essential. Nitrogen is especially important during the vegetative stage, while phosphorous and potassium are crucial during the flowering stages.
One of the biggest mistakes you can make as a new marijuana farmer is adding too many nutrients too quickly. Dumping a lot of nutrients in the soil or water can cause some of the same issues above.
It can be difficult achieving the ideal balance between the right level of nutrients and using too much. As you continue growing, gaining experience will help you to avoid giving too many nutrients or too little.
To be safe, it is typically better to use less nutrient solution than more. If you are using a commercial solution, make sure to use only half of the recommended amount, so you do not overfeed. Once your plants have reached the point where harvest time is coming, it is essential to stop feeding nutrient solutions.
Some growers begin to see their plants drooping towards time for harvest, and they panic and start feeding more nutrients, mistakenly believing their plants are about to die. Feeding at this stage is one of the worst things you can do to your cannabis plants because it will slow down the production of buds. Too many nutrients in the last couple of weeks can result in a lower yield and an “off” taste in marijuana.
It is entirely normal for the leaves of a marijuana plant to yellow and even fall off right before harvest. Do not let this concern you. If some of the leaves fall off, this allows the plant to put its full focus on developing big, delicious buds, which is what growers are after.
If you want to avoid having to worry about the nutrients the plants are receiving, it is easy to make compost. Adding rich compost to the soil will give your cannabis plants all the nutrients they need throughout their lifespan.