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Organic Cannabis Nutrients: What Do Your Plants Require?

If you’re looking to grow chemical and pesticide-free cannabis, keeping your soil rich in Organic Cannabis nutrients is crucial. They are essential for the proper growth and thriving of your plants.

Fertile soil is generally composed of a wide variety of matter, which includes micro and macronutrients, various fungi, and microbes. It can also include manure, humus, and compost.

But in all fairness, nutrients are undeniably the most important part of the soil. Thus, it’s absolutely crucial to understand what each specific nutrient brings to the table. It allows you to take better care of your cannabis plants. 

Having a concrete knowledge of Organic Cannabis nutrients and their function helps you to stay on top of things because even organic soil is capable of degrading over time.

Understanding what each nutrient does can aid to observe any nutrient deficiencies in your plants, and if you’re planning to grow your cannabis plants in outdoor soil, chances are you’ll probably have to add some of the nutrients long before you plant the weed.
Let’s check out what are the most important organic cannabis nutrients for your plants.

What Are the Best Organic Cannabis Nutrients for Cannabis Plants

Even though cannabis plants also require other micronutrients, these three macronutrients are generally considered the most important ones and are needed in the greatest quantities.

The most important macronutrients include nitrogen, phosphorus, and potassium.

Nitrogen is essential for several differing reasons. Firstly, it is crucial for both DNA and RNA, and cannabis plants simply can’t grow and multiply without this chemical element. 

Nitrogen is essential for the production of chlorophyll, the pigment which enables plants to harness sunlight in order to convert carbon dioxide into oxygen. 

Cannabis plants require nitrogen in every stage of their growth since it’s essential for photosynthesis. Nitrogen is also involved in the production of amino acids, the precursors of various proteins, which are needed for the overall health of the plant. 

Despite being a crucial element, too much nitrogen can also create serious issues. Excess amounts of nitrogen can result in a weakened root system and excess leaf and stalk growth and can have a detrimental effect on the groundwater.

hand in soil
hand in soil

Testing your soil is a great way to determine whether your nitrogen levels are optimal, and some of the best sources of nitrogen include:

  • Compost
  • Animal manure
  • Blood and fish meal

As for phosphorus, it is another important element for various functions within the plant. 

Phosphorus is essential for growth, and also plays a fundamental role in cell division, photosynthesis, water storage, and plenty more. 

If your cannabis plants exhibit stunted growth, feeble stems and aren’t flowering as they should be, these are clear signs that they aren’t receiving sufficient quantities of phosphorus from the soil. 

Contrarily, too much phosphorus can be really damaging for both the soil and the plant, so it’s important to test the soil before adding this element.

The best organic sources of phosphorus include:

  • Compost
  • Animal manure
  • Fish and bone meal

Finally, the third important piece of the puzzle is potassium. This element regulates both water and salt levels and therefore makes sure that your stems don’t wilt. 

Just like nitrogen and phosphorus, it plays a capital role in photosynthesis and the production of energy. 

A lack of potassium results in a weak plant, which can really be detrimental, especially in the flowering stage. A clear sign of potassium deficiency is crisp yellowish leaves with a burnt-like appearance. 

On the other hand, potassium in excess quantities interferes with the uptake of other important macro and micronutrients, so it’s also a smart idea to test your soil before deciding what to do.
Great organic sources of potassium are:

  • Hardwood ashes
  • Alfalfa and kelp meal

Organic Micronutrients for Cannabis

While cannabis plants also require other macronutrients like calcium and magnesium in smaller quantities, they also need these essential micronutrients:

  • Iron
  • Zinc
  • Copper
  • Silicon
  • Boron
  • Cobalt
  • Chlorine
  • Manganese
  • Molybdenum

Even though micronutrients are needed in minuscule amounts, they are nonetheless crucial for the overall health and growth of your plants.

Getting the Nutrients Through Composting

Creating compost is a cheap but very effective way of producing your own organic soil filled with nutrients. 

Besides creating nutrient-rich soil on a budget, composting also helps to significantly reduce waste.

Composting is a method that involves using food scraps to create soil wealthy with nutrients. It depends on various microorganisms that gradually degrade and break apart the food scraps into micronutrients. These nutrients replenish the soil and are then available for your plants to absorb and consume.

This process greatly relies on three aspects: moisture, bacteria, and oxygen. These elements combined create a supportive environment for microorganisms. It supplements the rapid breakdown of food scraps, which are later used to feed the plants.

If executed properly, composting can be the sole source for both your macro and micronutrient requirements, and compost is also a nutrient source that gradually releases its nutrients to the plants.

The main benefits of composting include:

  • It’s great for the environment (it reduces chemical pollution of the soil)
  • It recycles waste (composting reduces about 30% of the waste you produce)
  • It introduces benevolent microorganisms to your soil (which aerate the soil)



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