How long does it take to decompose manure

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Composting is a wonderful process that turns organic waste into valuable fertilizer. Among the different types of organic materials that can be fermented, manure is a popular choice due to its rich nutrient content. However, the lingering question for many farmers and gardeners is : how long does it take to decompose manure ? Let's dive into timing in natural conditions and using professional manure composting machines, Let's explore the three best composting equipment for animal manure disposal and share other tips to speed up the manure waste composting process.

Natural Fertilizer Vs Fermentation. Professional composters

Natural fermentation

In natural conditions, fermentation of manure is slow and regular. It relies on the activity of microorganisms to decompose organic matter. Depending on factors such as the size of the compost pile, the rapport C/N, humidity level and ambient temperature, this process can take 4 months to more than a year. During colder seasons, microbial activity decreases, thus extending the composting period.

Fertilizer Composting Equipment — Équipement de compostage d’engrais

Composting machine

On the other hand, using a professional composting machine can significantly speed up the process. These machines improve ventilation, maintain optimal temperatures and ensure regular turning. These controlled conditions can reduce manure composting time to just 10 has 20 days. After the active composting phase, additional ripening of 10 days is recommended to ensure that the composted manure is completely stabilized and ready for use.

Top 3 composting equipment for the disposal of manure waste

Compost turner in windrows

This equipment is designed to effectively turn and aerate the manure compost pile. By regularly mixing the organic matter, the windrow compost turner facilitates the circulation of oxygen and evenly distributes humidity, essential for microbial activity. Models range from small garden turners to large tracked composting units for commercial operations.

two-wheel compost turner for large-scale organic waste management

Wheel composting machine

Composting manure in a fermentation groove. Its rotation range can reach 30 m. Ideal for large-scale manure compost production (more than 10 t/h) and organic fertilizer.

Closed tank composting system

Ces tank fermentation systems provide a more controlled environment for making compost, thanks to features like temperature control and automatic turning. They are particularly useful for operations that need to deal with large quantities of manure quickly and efficiently.

machine de compostage d'engrais fermée en fonctionnement — machine de compostage d’engrais fermée en fonctionnement

4 Tips for Quickly Making Manure Compost

To accelerate aerobic fermentation of manure, follow the following tips :

Balance the carbon/nitrogen ratio

Aim for a carbon/nitrogen ratio of around 25:1 has 30:1 by mixing manure with carbon-rich materials such as straw or leaves.

Maintain adequate humidity

The humidity of the compost must be between 40 et 60 %. Excess humidity can lead to anaerobic conditions, while a lack of humidity can slow microbial activity.

Stir the pile regularly

This introduces oxygen, essential for aerobic composting. This also helps distribute heat and moisture evenly throughout the pile..

Monitor the temperature

A thermophilic process is desirable, with temperatures between 60 et 70 °C (140 et 160 °F) to kill pathogens and weed seeds.

In conclusion, the time it takes to decompose manure can vary considerably, but with suitable conditions and tools, the process can be accelerated. By choosing a fertilization equipment adapted and following best compost management practices, you can quickly turn manure waste into nutrient-rich compost.