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How To Make Compost


How To Make Compost

How To Make Compost. Compost is a nutrient-rich, organic material that is created through the process of decomposition. It is often used as a soil amendment to improve the fertility, structure, and moisture-retention capacity of the soil. Composting is a natural recycling process that converts various organic materials, such as food scraps, yard waste, and plant residues, into compost.

Benefits of Compost

Compost offers several benefits for both the environment and gardeners. Here are some key benefits of using compost:

  1. Soil Enrichment: Compost is a nutrient-rich soil amendment that enhances soil fertility. It adds essential nutrients, such as nitrogen, phosphorus, and potassium, as well as micronutrients, improving the overall nutrient content of the soil. This enriched soil promotes healthy plant growth, increases crop yields, and supports the development of robust root systems.
  2. Soil Structure Improvement: Compost improves soil structure by adding organic matter. It helps to loosen compacted soil, allowing better water drainage and root penetration. Compost also enhances soil's ability to retain moisture, reducing water runoff and promoting a healthy balance of air and water in the soil.
  3. Nutrient Recycling and Waste Reduction: Composting diverts organic waste, such as food scraps, yard trimmings, and plant residues, from landfills. By recycling these materials into compost, valuable nutrients are returned to the soil, reducing the need for chemical fertilizers. Composting helps to reduce greenhouse gas emissions from decomposing organic waste in landfills.
  4. Improved Plant Health and Disease Resistance: The use of compost enriches the soil with beneficial microorganisms and supports a diverse soil microbiome. This enhances plant health and boosts natural disease resistance. Compost can suppress certain plant diseases and discourage harmful pests, reducing the need for chemical pesticides.
  5. Environmental Sustainability: Composting is an environmentally sustainable practice that contributes to waste reduction and resource conservation. By recycling organic materials into compost, it reduces the amount of waste sent to landfills, which helps to mitigate greenhouse gas emissions and reduce the environmental impact of waste disposal.
  6. Cost Savings: Incorporating compost into your garden or landscaping can lead to long-term cost savings. Compost improves soil fertility, reducing the need for synthetic fertilizers. It also enhances water retention in the soil, reducing the frequency of irrigation. Ultimately, this can result in lower expenses for fertilizers, water, and the maintenance of plants.

Overall, composting is an eco-friendly and beneficial practice that supports healthy plant growth, reduces waste, conserves resources, and promotes sustainable gardening and agriculture.

Composting Methods

There are various methods of composting, each suited to different needs and circumstances. Here are some common composting methods:

1. Backyard Composting Method

Backyard composting is a popular and accessible method of composting that can be done in your own garden or outdoor space. Here's a step-by-step guide to backyard composting:

  • Select a Composting Location: Choose a suitable spot in your yard for the compost pile or compost bin. It should be easily accessible, well-drained, and preferably shaded or partially shaded.
  • Choose a Composting Container: Decide whether you want to use a compost bin or create an open compost pile directly on the ground. Compost bins are often preferred as they help contain the compost and maintain a neater appearance.
  • Gather Composting Materials: Collect a mix of green (nitrogen-rich) and brown (carbon-rich) materials. Green materials include kitchen scraps like fruit and vegetable peels, coffee grounds, tea leaves, and fresh grass clippings. Brown materials include dry leaves, straws, shredded newspaper, cardboard, and small twigs. Avoid adding meat, dairy products, oily foods, or pet waste to the compost pile, as they can attract pests or take longer to decompose.
  • Build the Compost Pile or Fill the Bin: If using an open compost pile, start by creating a layer of coarse materials like small twigs or straw at the bottom to aid aeration. Alternate layers of green and brown materials, aiming for a 3:1 ratio of brown to green. Moisten each layer as you go, aiming for a damp sponge-like consistency. Continue layering until you reach a desired height (around 3 to 5 feet). If using a compost bin, follow the instructions provided with the bin. Fill the bin with alternating layers of green and brown materials, moistening each layer.
  • Maintain and Manage the Compost: Regularly monitor and manage the compost pile. Turn or mix the materials every few weeks using a pitchfork or composting tool to provide aeration and promote decomposition. This helps prevent odors and speeds up the composting process. Maintain moisture levels by watering the pile if it becomes too dry or covering it during heavy rains to prevent over-saturation.
  • Harvest and Use the Compost: Over time, the composting materials will break down and transform into rich, dark compost. The composting process typically takes several months to a year, depending on factors such as the materials used, temperature, and level of maintenance. Once the compost appears dark, crumbly, and earthy with a pleasant smell, it is ready to use in your garden or potted plants. Apply the compost as a soil amendment or top dressing to enrich the soil and support plant growth.

Remember to be patient and consistent with your backyard composting efforts. By recycling organic materials and following these steps, you can create nutrient-rich compost while reducing waste and enhancing your garden's health.

2. Vermicomposting Method

Vermicomposting is a composting method that utilizes worms to break down organic materials and convert them into nutrient-rich vermicompost. It is an efficient and compact way to compost, making it particularly suitable for those with limited space or indoor composting needs. Here's a step-by-step guide to vermicomposting:

  • Choose a Worm Bin: Select a suitable container for your vermicomposting system. It can be a commercially available worm bin or a DIY bin made from a plastic storage container or wooden box. Ensure the bin has drainage holes at the bottom and a lid to cover it.
  • Prepare Bedding: Create a bedding material to provide a comfortable environment for the worms. Shredded newspaper, cardboard, coconut coir, or a mixture of these materials work well. Moisten the bedding until it feels like a damp sponge. Squeeze out any excess water.
  • Add worms: Acquire composting worms, such as redworms (Eisenia fetida) or red wigglers (Lumbricus rubellus), which are well-suited for vermicomposting. Start with a population of worms appropriate for the size of your bin. Place them on top of the bedding.
  • Feed the Worms: Introduce small amounts of kitchen scraps and other organic materials into the bin. Worms can consume fruit and vegetable scraps, coffee grounds, tea leaves, crushed eggshells, and other non-meat, non-dairy, non-oily food waste. Bury the food waste in the bedding to avoid attracting pests.
  • Maintain the Vermicompost System: Keep the bedding moist, but not waterlogged. Spray the bedding with water if it becomes dry. Avoid overfeeding the worms; add food scraps only when the previous scraps have been mostly consumed. It's better to underfeed than overfeed, as excess food can cause odors and attract pests.
  • Harvest Vermicompost: Over time, the worms will break down the organic materials, and the bedding will turn into nutrient-rich vermicompost. To harvest the vermicompost, stop feeding the worms on one side of the bin for a few weeks. The worms will migrate to the active feeding area. Remove the finished vermicompost from the side where the worms have migrated and use it in your garden or potted plants. Repeat the process to harvest from the other side of the bin.
  • Maintain the Worm Population: As the worm population grows, you may need to separate the worms from the vermicompost to prevent overcrowding. This can be done by creating worm migration piles or by setting up multiple bins. Place fresh bedding and food in a new bin, and the worms will migrate to the new food source. Harvest the vermicompost from the original bin.

Vermicomposting offers a convenient way to compost organic waste while producing nutrient-rich vermicompost that benefits your plants. It is an excellent option for those living in apartments, urban environments, or anyone seeking a low-maintenance and efficient composting method.

3. Compost Tumblers Method

Compost tumblers are enclosed containers that provide a convenient and efficient method for composting. They are designed to facilitate the composting process by allowing easy turning or rotating of the compost, providing aeration, and accelerating decomposition. Here's a step-by-step guide on using compost tumblers:

  • Choose a Compost Tumbler: Select a compost tumbler suitable for your needs. Consider factors such as capacity, durability, ease of use, and ventilation features. Ensure that the tumbler is designed to handle composting and has proper drainage.
  • Prepare Composting Materials: Collect a mix of green (nitrogen-rich) and brown (carbon-rich) materials for composting. Green materials include kitchen scraps, fresh grass clippings, and coffee grounds. Brown materials include dry leaves, straws, shredded newspaper, and cardboard. Chop or shred larger materials to speed up the composting process.
  • Add Composting Materials to the Tumbler: Begin by adding a layer of brown materials to the compost tumbler, followed by a layer of green materials. Continue layering brown and green materials, aiming for a 3:1 ratio of brown to green. Moisten each layer as you add it, aiming for a damp sponge-like consistency. Avoid adding large or compacted materials that may hinder aeration.
  • Turn or Rotate the Tumbler: Once the compost tumbler is filled, secure the lid or cover and begin turning or rotating it regularly. The turning action helps mix the materials, adds oxygen, and promotes even decomposition. Aim to rotate the tumbler at least once or twice a week, or as recommended by the manufacturer.
  • Monitor and Adjust Moisture Levels: Check the moisture content of the compost regularly. It should be moist but not waterlogged. If the compost appears too dry, add water to moisten it. If it is too wet, add more dry brown materials to absorb excess moisture. Proper moisture levels are crucial for the composting process.
  • Maintain the Compost: As the composting process progresses, monitor the temperature, odor, and appearance of the compost. The interior of the tumbler should heat up as decomposition occurs, ideally reaching temperatures between 120°F (49°C) and 160°F (71°C). Adjust the carbon-to-nitrogen ratio if needed by adding more brown or green materials.
  • Harvest the Finished Compost: The composting process in a tumbler typically takes a few weeks to a few months, depending on various factors. When the compost has a dark, crumbly texture and an earthy smell, it is ready to use. Open the access door or remove the compost from the tumbler. Use the finished compost in your garden beds, containers, or wherever soil amendment is needed.

Remember to follow the manufacturer's instructions for your specific compost tumbler, as designs and recommendations may vary. Compost tumblers offer the advantage of easy turning and faster decomposition, making them a convenient option for those seeking efficient composting in a compact space.

4. Sheet Or Pit Composting

Sheet or pit composting is a simple and natural method of composting that involves layering organic materials directly on the ground or burying them in a pit. This approach allows the materials to decompose gradually over time, enriching the soil beneath. Here's a step-by-step guide for sheet or pit composting:

Sheet Composting:

  • Choose a Composting Area: Select a suitable location in your garden or yard for sheet composting. It can be an unused garden bed or an area where you plan to plant in the future.
  • Prepare the Site: Clear the area of any weeds or grass. Loosen the soil surface to improve contact between the organic materials and the soil.
  • Gather Composting Materials: Collect a mix of green (nitrogen-rich) and brown (carbon-rich) materials for composting. Green materials can include kitchen scraps, fresh grass clippings, and plant trimmings. Brown materials can consist of dry leaves, straws, shredded newspaper, and cardboard.
  • Layer the materials: Begin by placing a layer of brown materials on the cleared area, covering it evenly. Add a layer of green material on top of the brown layer. Continue alternating layers of brown and green materials, ensuring each layer is relatively thin and evenly distributed.
  • Add Soil or Finished Compost: Intersperse layers of organic materials with thin layers of soil or finished compost. This helps introduce beneficial microorganisms into the pile and aids in the decomposition process.
  • Water and Cover: After each layer, lightly water the materials to keep them moist but not waterlogged. Cover the compost pile with a layer of straw, leaves, or a breathable tarp to retain moisture and protect it from excessive rainfall or drying out.
  • Maintain and Monitor: Over time, the materials will decompose and shrink in size. Occasionally, lift the covering and check the moisture level. If the pile becomes too dry, water it lightly. If it becomes too wet, uncover it to allow for better airflow and drainage.

Incorporate the Compost: After several months or longer, the organic materials will break down into compost. At this point, you can incorporate the composted material into the soil by turning it with a garden fork or spade. Alternatively, you can plant directly in the composted area.

Pit Composting:

  • Dig a Compost Pit: Choose a location in your garden or yard where you can dig a pit. The size of the pit can vary depending on the amount of organic material you have available.
  • Layer the Organic Materials: Start by placing a layer of brown materials at the bottom of the pit. Add a layer of green materials on top. Continue layering brown and green materials, ensuring each layer is relatively thin.
  • Add Soil or Finished Compost: Intersperse the layers of organic materials with thin layers of soil or finished compost to introduce microorganisms and aid decomposition.
  • Cover the Pit: Once the pit is filled, cover it with a layer of soil, straw, or leaves to prevent pests and retain moisture.
  • Monitor and Maintain: Check the moisture level of the pit regularly. If it becomes too dry, water it lightly. If it becomes too wet, uncover it to allow for better airflow and drainage.
  • Decomposition and Harvest: Over time, the organic materials will decompose and turn into compost. This process can take several months to a year. When the materials have broken down and become crumbly, you can harvest the compost by removing the covering and digging it out from the pit. Use the compost as a soil amendment or for planting.

Sheet and pit composting are suitable methods for slowly enriching the soil with organic matter. They work well for larger quantities of organic materials and are particularly

5. Compost Tea Method

Compost tea is a liquid fertilizer and soil amendment created by steeping compost in water. It extracts beneficial microorganisms, nutrients, and other soluble components from the compost, resulting in a nutrient-rich liquid that can be used to boost plant growth and improve soil health. Here's a step-by-step guide on how to make compost tea:

  • Gather Composting Materials: Start with high-quality compost that has undergone sufficient decomposition. Ensure that the compost is free of contaminants, such as pesticides or herbicides. You'll also need a large container, such as a 5-gallon bucket, to brew the compost tea.
  • Prepare the Compost Tea Bag: To contain the compost during brewing, place the compost in a porous bag or create a mesh bag using cheesecloth or burlap. The bag should allow water to flow through while keeping the compost contained.
  • Fill the Container with Water: Fill the container with water, preferably non-chlorinated water, such as rainwater or dechlorinated tap water. Avoid using chlorinated water, as it can harm beneficial microorganisms.
  • Add Compost to the Container: Place the compost-filled tea bag into the water, ensuring that it is fully submerged. Use a weight, such as a rock, to keep the bag submerged throughout the brewing process.
  • Brew the Compost Tea: Allow the compost tea to steep or brew for 24 to 48 hours. The brewing time can vary depending on the desired strength of the tea. Longer brewing times can result in a more concentrated tea.
  • Aerate the Compost Tea: During the brewing process, it's essential to agitate or aerate the compost tea to promote the growth of beneficial microorganisms. You can use an aquarium air pump with an air stone or manually stir the tea a few times a day. Aeration helps prevent anaerobic conditions and enhances microbial activity.
  • Strain the Compost Tea: After the brewing period, remove the compost tea bag from the container. Use a fine mesh strainer or cheesecloth to strain the tea, removing any solid particles or debris.
  • Apply the Compost Tea: Dilute the compost tea before using it. Mix 1 part compost tea with 4 to 10 parts water, depending on the strength of the tea and the plants' needs. Apply the diluted compost tea to the soil around plants or use it as a foliar spray on the leaves. Apply the tea within 4 to 6 hours after dilution to ensure maximum effectiveness.
  • Store and Use Remaining Compost Tea: If you have leftover compost tea, store it in a covered container and use it within 24 to 48 hours. Proper storage helps maintain the microbial activity and nutrient content of the tea.
Compost tea provides a natural and nutrient-rich supplement for plants, promoting healthy growth and enhancing soil fertility. Regular application of compost tea can improve soil structure, nutrient availability, and overall plant health.

6. Bokashi Composting Method

Bokashi composting is a method of composting that utilizes a specialized mixture of beneficial microorganisms to ferment organic waste. It is an anaerobic composting process, meaning it occurs in the absence of oxygen. Bokashi composting is particularly useful for composting kitchen scraps, including meat, dairy, and small bones, which are typically not recommended for traditional aerobic composting. Here's a step-by-step guide on how to do bokashi composting:

  • Acquire a Bokashi Composting System: Purchase or create a bokashi composting system. This typically consists of airtight containers with a drainage spigot, a perforated insert, and a lid. The containers can be commercially available or DIY options such as repurposed buckets.
  • Prepare the Bokashi Bran: Bokashi bran is a mixture of bran or other carrier material infused with beneficial microorganisms, typically including lactobacillus bacteria. You can either purchase bokashi bran or make your own using an effective microorganism (EM) culture starter kit.
  • Layer Organic Waste and Bokashi Bran: Place a layer of food waste, including vegetable scraps, fruit peels, cooked leftovers, and even small amounts of meat or dairy, into the bokashi composting container. Sprinkle a thin layer of bokashi bran over the waste. Continue layering food waste and bokashi bran, ensuring each layer of waste is thoroughly coated with the bran.
  • Compact and Seal the Container: After each layer, press down or compact the waste to remove excess air and create a uniform surface. Once the container is filled, press the waste down firmly and ensure that it is tightly sealed to create an airtight environment.
  • Drain Liquid: As the fermentation process occurs, the organic waste will release a liquid known as bokashi tea. Open the drainage spigot periodically to drain the tea into a container. Bokashi tea can be diluted and used as a liquid fertilizer.
  • Fermentation Period: Keep the container in a cool, dark place, ideally between 15°C (59°F) and 25°C (77°F). Allow the fermentation process to proceed for about two weeks. During this time, the microorganisms break down the organic waste, fermenting it into a pre-compost material.
  • Bury or Ferment the Pre-compost: After the fermentation period, you have two options for further processing the pre-compost material. You can bury it directly in the soil or continue the fermentation process in a separate composting bin. If burying, dig a trench or hole in your garden, bury the pre-compost, and cover it with soil. If continuing fermentation, transfer the pre-compost to a traditional compost bin or pile, where it will further decompose aerobically.
  • Final Composting: Whether you bury or transfer the pre-compost to a separate composting system, it will require further aerobic composting to fully break down into mature compost. This process typically takes several weeks to several months, depending on various factors such as temperature, moisture, and turning frequency.

Bokashi composting offers a convenient way to compost a wide range of kitchen scraps, including materials that are typically not suitable for traditional aerobic composting. The resulting fermented pre-compost can be buried directly in the soil or further composted to produce nutrient-rich compost for your garden.


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