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seabird guano vs bat guano

Guano’s many applications in the garden make it desirable for organic growers. It can be used on both field- and indoor-grown crops as a soil builder. Guano is an odorless manure that can be diluted with water and used in hydroponic applications. It can be used for lawn treatments and as a fertilizer for landscape plantings.

Bat guano is often marketed with either high nitrogen or high phosphorus values. It is usually powdered so it can be spread as is, or mixed with water for spray or hydroponic applications. It also comes in pellet form or ready-to-use liquid form.
Studying these strata tell scientists about the historical climate, and give them insight into the history of flora and fauna of the area. This valuable information is irreplaceable once guano has been harvested.

They both tie up the majority of their nutrients as slow-release fertilizers, needing four months or more to release their goods. Guano also stimulates the soil’s microbial activity and aids in the decomposition process. Guano’s interaction with soil can be sped up by introducing an enzyme that increases the biological activity of the breaking-down process.
Peruvian guano is often regarded as the most desirable, as the cold water and warm air on Peru’s coast prevent rainfall and subsequent nutrient-leaching of the guano. This results in higher levels of nitrogen in particular.
Some vulnerable bat species will starve to death, as disturbances to their homes put them in a panicked state and their low fat reserves are unable to sustain them. Other bat species may abandon their young.
In addition to the biological damage that can be caused by guano mining, historical data can be lost forever in the process. Deep guano deposits contain local paleo-climatic records in the strata that have built up over thousands of years.
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Guano is not a rapidly renewable resource. It can take hundreds of years for the raw material to develop into a usable form for plants. Guano caves can be thought of like peat bogs. The material was formed naturally, and more will be formed as time goes on, but we are using the material faster than it can be replaced.

Guano, most often associated with bats, is nutrient-rich manure from bats, seabirds and even seals. It is popular with organic gardeners because of its high levels of slow- and fast-release nitrogen and phosphorus. Depending…