Between 1806 and 1841, guano caused astonishment and trepidation in European and new-American farmers. This horticultural curiosity caused such huge and healthy plant growth that it was feared the soil may be depleted irreparably. Within a few years though, it was in great demand by every farmer in the world.
The savvy contemporary cannabis consumer is learning to demand high-quality, organic marijuana. Guano is one way of achieving world-class quality when growing organically indoors or outdoors.
The benefits of guano for plant growth are numerous:
Two million tonnes were imported by Britain from 1840 onwards, and the government of the United States made it a matter of agricultural necessity. During his tenure, President Fillmore said “Guano has become so desirable an article to agricultural interests in the US that it is the duty of the Government to employ all means properly in its power for the purpose of causing this article to be imported into the country at a reasonable price”.
The diet of the particular bat species can alter the nutrient profile of the guano. Insect-eating bats produce a guano that has a high nitrogen content. This makes it ideal for fertilising during the vegetative phase. Fruit-eating bats produce a guano that has a high phosphorus content. This is best for use during the flowering phase when cannabis has a higher demand for phosphorus.
Add guano to the soil for a boost in plant performance. Here’s how:
- It improves soil texture. If the soil is too loose, guano will bind it better and increase water retention. If the soil is too dense, guano will loosen the texture and let water penetrate more efficiently.
- Bioremediation. Guano can help flush toxic elements from the soil while protecting the roots microbially and continuing to feed the affected plant.
- It encourages healthy decomposition of exhausted material. Adding guano to compost speeds up the composting process and improves friability.
- It is a slow-release fertiliser. Guano will provide nutrients for most of the life of your plant.
- It is a pH-adjuster, buffering the pH of the root system.
- It controls nematodes and is a natural fungicide against chitin (from insect shells).
- It keeps soil friable and acts as a soil conditioner. Guano adds beneficial enzymes and microflora for continuous soil health.
- When combined with other additives like worm castings and various meals, guano helps create thriving colonies of root fauna.
- Used as a dilute spray, guano can help provide plants with fungal protection.
- Dig it in (under the mulch) so that it activates properly
- It will dry, clump, and not work as effectively if only sprinkled on the surface
- Water-in well
Guano has a long history as a high-performance organic fertiliser. When you see the benefits of guano on cannabis plants, you will immediately comprehend why wars have been fought and fortunes have been made and lost because of guano.
Guano has been a respected organic fertiliser for centuries. When used to grow cannabis, it often produces spectacular results.