Compost scientists have determined that the fastest way to produce fertile, sweet-smelling compost is to maintain a C:N ratio somewhere around 25 to 30 parts Carbon to 1 part Nitrogen, or 25-30:1. In aerobic decomposition, part of the carbon is released as CO2 while the rest is combined with nitrogen in the bodies of microorganisms. Then, scroll to the bottom to see if your ingredients add up to the ideal carbon to nitrogen ratio of between 20 to 40 to 1. Solid Waste. Wondering what they heck people mean when they say composting carbon to nitrogen ratio? Enter the mass of each material (wet weight), percentage of carbon, percentage of nitrogen, and percentage of moisture, then click on the calculate button. C provides energy and microbial cell structure while N is linked to proteins, enzymes and other substances integral to cell growth and other biological functions. Physical Address 127 West Court St Goldendale, WA 98620. But there is a massive difference in bulk densities, especially with carbon-rich materials. For example, I want to add both leaves and sawdust for the carbon and then add coffee grounds and garden waste for the nitrogen. Carbon is a source of energy for microbe growth. Do I have to add the carbon ratios together and the nitrogen together individually? Phone: 509-773-4448 . Calculating Carbon : Nitrogen Ratios for Composting. Using the calculator is very easy. When piled to a point where heat can be trapped, this carbon-to-nitrogen ratio allows for thermophilic – or “heat loving” microbes to thrive, allowing your compost bin or pile to reach temperatures of 150°F or higher. When adding materials to your compost, it is not necessary to use precise measurements or attain an exact C:N (carbon to nitrogen) ratio. 14 Versatile Herbs That Grow in the Shade, Growing Basil: The Complete Guide to Plant, Care, and Harvest Basil, 12 Essential Fall Garden Tasks to Get You Ready for Spring, Zone Six Gardening: The Perfect Fruits and Vegetables for Your Zone, http://extensionpublications.unl.edu/assets/html/g1315/build/g1315.htm, https://www.planetnatural.com/composting-101/making/c-n-ratio/, https://ucanr.edu/sites/mginyomono/files/170818.pdf, http://cwmi.css.cornell.edu/AppendixATable1OFCH.pdf, http://agrienvarchive.ca/bioenergy/download/barker_ncsu_manure_02.pdf, http://www.carryoncomposting.com/416920203, http://docs.nmcomposters.org/2014-mc-project-bw.pdf, http://humanurehandbook.com/downloads/H4/Ch_09_Compost_Nuts%20and%20Bolts.pdf, http://sweeta.illinois.edu/composting-horsebedding.cfm, http://vermontllamaalpacaassociation.blogspot.com/2012/05/composting-your-camelid-manure-101.html, http://docs.nmcomposters.org/carbon-nitrogen-ratio-simplified.pdf, https://compost-turner.net/composting-technologies/grape-stalks-and-pomace-composting-process.html, https://www.agweb.com/article/understand-carbon-to-nitrogen-ratios-before-buying-cover-crop-seed/, https://www.webpal.org/SAFE/aaarecovery/1_farm_recovery/humanure/newchapter03_07.htm, https://content.ces.ncsu.edu/summer-cover-crops, https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8137.1928.tb06729.x, cespubs.uaf.edu/index.php/download_file/1258/. You may hear the C:N ratio bandied about in discussions among avid composters. To calculate the carbon content given C/N and percent nitrogen, solve: %C = %N x C/N You may be able to measure the carbon and nitrogen content of your own materials and then calculate the ratio directly. Since organisms use about 30 parts carbon for each part of nitrogen, an initial C:N (available quantity) ratio of 30 promotes rapid composting and would provide some nitrogen in an immediately available form in the finished compost. mmhos/cm or dS/m: 0 to 4 I’d even seen somewhat complicated compost calculators on the internet. Physical Address 127 West Court St Goldendale, WA 98620. It is the combination of materials that creates the ideal climate for compost microbes-a C:N ratio of 30:1. Compost Calculator helps you calculate the carbon nitrogen ratio of your compost pile for optimal composting. I’d read all the stuff about how a pile should have a 30:1 carbin to nitrogen ratio, I’d read the add 2 parts brown to one green (I never had good results this way). In our experience, this level of detail is not needed to get achieve hot composting. #4 – Divide the carbon totals by the nitrogen totals to get the C: N ratio 21.5/0.62= 34.7 parts of carbon to 1 part of nitrogen is the cumulative C: N ratio of your compost recipe. This is a great example of why only considering volume when it comes to your mixture of browns and greens may lead you down the wrong path. Carbon to Nitrogen ratio (C:N) is a ratio of the mass of . Pro Tip: Check out this handy list of the carbon-nitrogen ratio for various compost ingredients to get a general sense of how much of each to incorporate into your pile. Then, scroll to the bottom to see if your ingredients add up to the ideal carbon to nitrogen ratio of between 20 to 40 to 1. Compost Mix Calculator Sources Bernalillo County Extension Master Composters. You need to fill in how many “parts” of each compost ingredient you are planning to add to your pile. You can build excellent compost without using a calculator. The trick, of course, is to hit the composting “sweet spot” with a carbon-to-nitrogen ratio of about 30:1 for the initial feedstock blend. The fair proportion between these two components is called the carbon-to-nitrogen ratio or C:N ratio. The carbon to nitrogen ratio in the compost pile should be 30:1, not the ratio of browns to greens. #5 – Achieve the C: N ratio between 25 and 35 to make the most of it. C:N Ratio: Ratio of carbon to nitrogen. The calculator then calculates the moisture content and C:N ratio of your compost mixture. As a soil amendment before planting new beds, use 1-3 inches of compost dug or tilled into the soil. (53 minutes, 44 seconds). Researchers report optimum values from 20 to 31. Therefore, compost piles are limited to plant material. It can, amongst other things, be used in analysing sediments and compost. Ideally, the estimated C:N ratio for composting is between 25:1 and 30:1 portions of carbon and nitrogen for a faster composting process. Carbon and Nitrogen - a quick review (con’t) Carbon: Provides energy and supports growth Nitrogen: Provides protein and support reproduction A balanced Carbon to Nitrogen (C:N) ratio of 25:1 to 30:1 is ideal for an active compost pile C:N ratios of as low as 20:1 or as high as 40:1 also produce good quality fnished compost Solid Waste. For instance, one cubic yard of horse manure needs 150 gallons of of a loose material like dry leaves to achieve a C:N of 25:1. Common C:N ratios %C %N Blood meal 43 13 Legume Hay (dry) 40 2-2.5 Fresh cow manure 12-20 0.6-1.0 ... the percent carbon of each ingredient by the number of parts by weight of that ingredient and then adding the carbon totals for ingredients. Your pile will thoroughly decompose if you find the total C: N ratio between 25 and 35. The calculator does take bulk density into account in order to give you accurate C:N ratios. CARBON-TO-NITROGEN RATIO To calculate the amounts of various materials to add to a compost pile with a C:N ratio of 30:1, you need to know the nitrogen and carbon con-tents of the individual ingredients. But adjusting the carbon-to-nitrogen ratio isn’t difficult. For optimal performance, the beneficial microbes need the right ratio of carbon for vitality and nitrogen for protein generation. Key Features When adding materials to your compost, it is not necessary to use precise measurements or attain an exact C:N (carbon to nitrogen) ratio. This page provides a little more detail on the Carbon: Nitrogen ratio and lists a range of Greens and Browns in order of their Carbon content. Note: This IS a function of sawdust's incredibly high carbon-to-nitrogen ratio, but is also a function of a gallon of sawdust's bulk density relative to dry leaves. The carbon to nitrogen ratio in the compost pile should be 30:1, not the ratio of browns to greens. The role that the composting carbon nitrogen ratio (C:N) ... Now before you start breaking out your calculators, please understand that if your ratios are not within this magical range, your pile will still breakdown; it may just happen more slowly. As a result, the carbon content of a compost pile is continuously decreasing. … Bulk density is the measure of dry weight per unit of volume, often expressed as pounds per cubic foot. The carbon to nitrogen ratio (C:N) describes relative proportions of carbon and nitrogen in a substance. Hours Monday - Friday 8 a.m. - 5 p.m. Directory. Compost Mix Calculator About the Compost Mix Calculator; Compost Calculator; Contact Us. You can build excellent compost without using a calculator. The following factors will have a significant impact on your C:N ratio and the performance of your compost pile or vermicompost bin. Physical Address 127 West Court St Goldendale, WA 98620. As the microbes consume the carbon material and the nitrogen is converted to the more plant-available forms of ammonium (NH4+) and nitrate (NO3-), the C:N will slowly drop over the course of several weeks, assuming no new additions of brown or green material. Enter feedstock information based on your own analyses or data, or use the information provided in the feedstock list. by jackie unstad (omaha ne ) What would be the balance just using horse manure and grass clippings? Nitrogen, however, gets recycled, so the amount at the end of processing is the same as it was in the beginning. If they do, you can go and make your compost pile! Everything organic has a carbon:nitrogen ratio of carbon to nitrogen in its tissues. Electrical Conductivity (EC) A measure of soluble salts High salts may injure plants. Calculating Carbon to Nitrogen Ratios When starting out with small compost piles, you can follow ‘rule of thumb’ measurements rather than calculating the carbon to nitrogen ratio. Read this! Select the correct mix to give a carbon: nitrogen (C:N) ratio of about 30:1. Compost Carbon:Nitrogen Ratios Made Simple - Duration: 5:40. Spread the love . Give it a Grow 38,858 views. Diverse particle sizes allow for greater pore spaces to allow oxygen to enter your compost pile. Adding compost or other nutrients can help you find the right carbon-nitrogen ratios. A Road Map for What To Feed Your Worms, Complete Guide to Continuous Flow Vermicomposting, Winter Vermicomposting: How to Keep a Worm Bin Warm When It’s Cold, Why Worms Won’t Help Lifeless, Compacted Soil. But it only takes 3 gallons of sawdust to achieve that same C:N ratio. by Ruan How do you apply the carbon-nitrogen ratio if the compost consists of more than 1 C:N (greens and browns) ratio? The calculator is primarily intended for manure composting, however it can be used for other materials as well. carbon to the mass of nitrogen in a substance. Contact Us. I’d even seen somewhat complicated compost calculators on the internet. Vermicomposting is a much different process and allows for a much wider acceptable range when it comes to C:N. For larger bins, you want to avoid anything in the 25-30:1 C:N range or lower because we do not want to promote thermophilic composting in worm bins which need to remain between 50°F and 90°F to support and environment where worms can thrive. Spread the love . Calculating the Composting Carbon Nitrogen Ratio. by jackie unstad (omaha ne ) What would be the balance just using horse manure and grass clippings? Like most calculators, this one is garbage in, garbage out in terms of data. Composting For Beginners: Getting A Perfect Carbon to Nitrogen Ratio - Duration: 15:51. Ratio 1 is going to represent all of the organic waste you have accumulated at your home or business that you want to compost such as food scraps, weeds, and used paper. C:N impacts on compost use. So, in general, you should have 4” layers of brown material alternating with 2” layers of green material (source). So, for example, if your food waste includes high amounts of fruit waste, this can effect your calculated C:N. Composting and vermicomposting are aerobic processes. This affects compost use for farmland application. The calculator is primarily intended for manure composting, however it can be used for other materials as well. The carbon and nitrogen (C: N) ratio in plant material is variable and ranges from 20: 1 to 30: 1 to legumes and farm yard manure to as high as 100: 1 in certain straw residues. If the C:N ratio is too high (excess Carbon), decomposition slows down. On the other hand C: N ratio of the bodies of micro-organisms is not only more constant but much narrower between 4: 1 and 9:1. Carbon is also released as CO2. Composting For Beginners: Getting A Perfect Carbon to Nitrogen Ratio - Duration: 15:51. Everything organic has a carbon:nitrogen ratio of carbon to nitrogen in its tissues. Carbons for the compost pile include the following: Dry leaves: ... Sawdust: Because sawdust has an extremely high carbon to nitrogen ratio, use it sparingly in the compost pile. Each of these four parameters is discussed in more depth in the following section. What Is My Desired Carbon-to-Nitrogen Ratio for Composting and Vermicomposting? Each of these four parameters is discussed in more depth in the following section. At least in Polish publications and the ISRIC calculations (i have one sheet with profile data received this year during ISRIC spring School) the C:N ratio is calculated on the mass basis. C provides energy and microbial cell structure while N is linked to proteins, enzymes and other substances integral to cell growth and other biological functions. Solid Waste. 3) Get the Feel of Your Pile There is no need to get out your calculator to know whether you’re striking the right balance carbon-nitrogen balance. Of course, it is still an approximation, because we will be relying on published average percentage, but it is as close as you will get without testing each batch. To calculate the carbon content given C/N and percent nitrogen, solve: %C = %N x C/N You may be able to measure the carbon and nitrogen content of your own materials and then calculate the ratio directly. Overall they use 30 carbon for every 1 nitrogen atom – hence the optimal ratio of carbon to nitrogen for bacteria growth is 30:1. Soil nutrient analysis laboratories or environmental testing laboratories can … Calculate the Carbon to Nitrogen Ratio - Cornell Composting Calculate C/N Ratio For Three Materials This calculation solves for the carbon to nitrogen ratio of up to three materials. This page provides a little more detail on the Carbon: Nitrogen ratio and lists a range of Greens and Browns in order of their Carbon content. But adjusting the carbon-to-nitrogen ratio isn’t difficult. Below this range excess nitrogen was lost, while above this range the composting speed slowed down. by Ruan How do you apply the carbon-nitrogen ratio if the compost consists of more than 1 C:N (greens and browns) ratio? Why Are Worms Crawling Up The Walls of My Bin? Calculating Carbon to Nitrogen Ratios. 21.5/0.62= 34.7 parts of carbon to 1 part of nitrogen is the cumulative C: N ratio of your compost recipe. This Price to Earnings Ratio Calculator makes it easy to calculate the P/E rat (Soil microbes prefer a C:N ratio of around 24:1.) Above 70%, the risk of anaerobic conditions increases as moisture displaces air in the pore spaces of the compost, at which point the microbes consume the available oxygen without an avenue to re-oxygenate the pore space. Carbon : Nitrogen Ratio 20:1 to 40:1 25:1 to 30:1 20:1 to 40:1 Bulk Density <1200 Lbs/Yard3 <1100 Lbs/Yard3 <1200 Lbs/Yard3 Note: While porosity can be estimated, both in the field and in the lab, field observation and knowledge of recipe are typically adequate. If they do, you can go and make your compost pile! None: 12 to 15: Compost with high C:N will reduce N availability to plants. Hours Monday - Friday 8 a.m. - 5 p.m. Directory. I must stress that compost will still be produced if the C: N ratios of the bins are outside the recommended range. A compost pile with mostly coffee grounds and  a low-particle-sized material like sawdust may not compost as effectively as a mix of coffee grounds, sawdust, and wood chips. Trying to make a compost pile? How To Calculate C:N Ratio for a Compost Pile. How to Prevent and Eliminate Fruit Flies in the Worm Bin, Water Content of Fruits and Vegetables: Vermicomposting 101. Using the dropdown options above, add various compost ingredients to arrive at a recipe which gives you your desired carbon-to-nitrogen ratio, of C:N. Add as many items as you like, and subtract them along the way as needed. Pro Tip: Check out this handy list of the carbon-nitrogen ratio for various compost ingredients to get a general sense of how much of each to incorporate into your pile. A useful application for C/N ratios is as a proxy for paleoclimate research, having different uses whether the sediment cores are terrestrial-based or marine-based. Fax: 509-773-5991. Good compost must have a balance of carbon-rich (woody material) and nitrogen rich (green leafy matter or manure) materials. C:N Ratio: Ratio of carbon to nitrogen. A successful active compost pile will have a 2 to 1 carbon-to-nitrogen ratio by volume. It all depends on which browns and greens you use. It is a ratio of carbon to nitrogen. Ratio 1 is going to represent all of the organic waste you have accumulated at your home or business that you want to compost such as food scraps, weeds, and used paper. Phone: 509-773-4448. When organic matter decays, the carbon is dissipated more rapidly than the nitrogen, thus bringing down the carbon-nitrogen ratio. Using the calculator is very easy. Directory. If you wish to analyse and achieve 30:1 then there are online calculators to help. carbon/nitrogen ratio [written as C:N] is used as a primary indicator of nutrient content. Compost Mix Calculator About the Compost Mix Calculator; Compost Calculator; Contact Us. For best performance, the compost pile, or more to the point the composting microorganisms, require the correct proportion of carbon for energy and nitrogen for protein production. Measuring C:N • Nitrogen is measured by Kjeldahl method (TKN) Combustion method. I’ve had frequent conversations about composting over the years. Physical Address 127 West Court St Goldendale, WA 98620. If the C:N ratio is too low (excess nitrogen) you will end up with a stinky pile. This calculator determines the amount of carbon source material and water needed to create a good compost mix. 3) Get the Feel of Your Pile There is no need to get out your calculator to know whether you’re striking the right balance carbon-nitrogen balance. carbon/nitrogen ratio [written as C:N] is used as a primary indicator of nutrient content. Compost Carbon:Nitrogen Ratios Made Simple - Duration: 5:40. Together, they influence microbial feeding activities. Wondering about how to estimate the moisture of your compost? This affects compost use for farmland application. It can, amongst other things, be used in analysing sediments and compost. The calculator then calculates the moisture content and C:N ratio of your compost mixture. The 30:1 ratio is the Goldilocks Zone for composting, but a typical finished compost might have a ratio of 20-25. Fax: 509-773-5991. mmhos/cm or dS/m: 0 to 4 Ratio 2 is going to be additional items mixed in afterwards that have a C:N either high in nitrogen or high in carbon – whichever is opposite to Ratio 1. ***** Jackie, you ask about working out the calculations of carbon to nitrogen ratios using horse manure and grass clippings. Overall they use 30 carbon for every 1 nitrogen atom – hence the optimal ratio of carbon to nitrogen for bacteria growth is 30:1. As a result, the carbon content of a compost pile is continuously decreasing. The ideal C:N for composting is approximately 25-30:1. Give it a Grow 38,858 views. This is why fruit wastes themselves are not included in the calculator. For example, a C:N of 10:1 means there is ten units of carbon for each unit of nitrogen in the substance. For example, I want to add both leaves and sawdust for the carbon and then add coffee grounds and garden waste for the nitrogen. Ratio 2 is going to be additional items mixed in afterwards that have a C:N either high in nitrogen or high in carbon – whichever is opposite to Ratio 1. So for worm composting, we would like to see C:N at 50:1 or higher. Please note, if you're a commercial compost producer, you really want your ratios between 25:1 and 30:1. Directory. However, it is not just a question of getting the right C: N Ratio. Phone: 509-773-4448. Contact Us. If you're wondering about the difference between vermicomposting and composting, this article ought to help! The results shown on the report page are calculated based on the ideal C:N Ratio (Carbon, Nitrogen Ratio) of 30:1 (30 parts carbon to 1 part nitrogen). You need to fill in how many “parts” of each compost ingredient you are planning to add to your pile. As a soil amendment before planting new beds, use 1-3 inches of compost dug or tilled into the soil. Disclosure. Sandwich an ultra-thin layer (no more than an inch) between moist grass clippings, or mix handfuls thoroughly with lots of other ingredients. 5:40. ***** Jackie, you ask about working out the calculations of carbon to nitrogen ratios using horse manure and grass clippings. For instance, fruit waste in particular can have C:N as low as 20:1 and as high as 50:1. The second composting recipe could be correct, but it is probably not. This calculator determines the amount of carbon source material and water needed to create a good compost mix. Are They Escaping? Calculating the C:N ratio For perfect compost every time you must know the Carbon and Nitrogen content of each material you will add to the bin or pile. Composting and vermicomposting should both occur at moisture contents between 50-70%. A carbon-to-nitrogen ratio (C/N ratio or C:N ratio) is a ratio of the mass of carbon to the mass of nitrogen in a substance. The researchers tested Carbon:Nitrogen ratios varying from 201 to 78:1. N stands for Nitrogen. Mixtures are calculated by volume, not by weight. For now, feel free to continue reading. You may hear the C:N ratio bandied about in discussions among avid composters. Want to … F1 Plants and Seeds: What Are They and Should You Use Them? Urban Worm Guide to Coconut Coir: How is It Used and Why? I’ve had frequent conversations about composting over the years. You need to fill in how many “parts” of each compost ingredient you are planning to add to your pile. If the C:N ratio is too high (excess Carbon), decomposition slows down. Carbon is a source of energy for microbe growth. Stable soil organic matter has C:N of 12-15. Andre Leu, Soil Carbon, from the 2007 Eco-Ag Conference & Trade Show. Do I have to add the carbon ratios together and the nitrogen together individually? 5:40. It is a ratio of carbon to nitrogen. It is the combination of materials that creates the ideal climate for compost microbes-a C:N ratio of 30:1. If the C:N ratio is too low (excess nitrogen) you will end up with a stinky pile. Compost scientists have determined that the fastest way to produce fertile, sweet-smelling compost is to maintain a C:N ratio somewhere around 25 to 30 parts Carbon to 1 part Nitrogen, or 25-30:1. Calculating Carbon : Nitrogen Ratios for Composting. A majority of investigators believe that for This Price to Earnings Ratio Calculator makes it easy to calculate the P/E rat Solid Waste. Carbon : Nitrogen Ratio 20:1 to 40:1 25:1 to 30:1 20:1 to 40:1 Bulk Density <1200 Lbs/Yard3 <1100 Lbs/Yard3 <1200 Lbs/Yard3 Note: While porosity can be estimated, both in the field and in the lab, field observation and knowledge of recipe are typically adequate. Simply add one part green to two parts brown, and your compost should be roughly balanced. Then, scroll to the bottom to see if your ingredients add up to the ideal carbon to nitrogen ratio of between 20 to 40 to 1. Electrical Conductivity (EC) A measure of soluble salts High salts may injure plants. Enter feedstock information based on your own analyses or data, or use the information provided in the feedstock list. I’d read all the stuff about how a pile should have a 30:1 carbin to nitrogen ratio, I’d read the add 2 parts brown to one green (I never had good results this way). When starting out with small compost piles, you can follow ‘rule of thumb’ measurements rather than calculating the carbon to nitrogen ratio. Simply add one part green to two parts brown, and your compost should be roughly balanced. Compost calculator allows for multiple opened and finished piles to meet all your composting needs. If you see incorrect data, would like to see an ingredient added, or have general questions, please feel free to e-mail me and let me know! Soil nutrient analysis laboratories or environmental testing laboratories can … Some ingredients have a wide variance in C:N ranges which can of course have an outsized effect on the final C:N you think you're getting. A carbon-to-nitrogen ratio (C/N ratio or C:N ratio) is a ratio of the mass of carbon to the mass of nitrogen in a substance. Phone: 509-773-4448 . The trick, of course, is to hit the composting “sweet spot” with a carbon-to-nitrogen ratio of about 30:1 for the initial feedstock blend. Guide to Red Wiggler Composting Worms: Everything You Need to Know, Red Wigglers Vs Indian Blues: How to Tell the Difference, What Do Worms Eat? Compost Mix Calculator Sources Bernalillo County Extension Master Composters. However, even when a Carbon:Nitrogen ratio of 78:1 was used compost was still produced in 21 days. If you wish to analyse and achieve 30:1 then there are online calculators to help. They found that the optimum range for speed was between 30:1 to 35:1. Using the calculator is very easy. C means Carbon. This is often – though not always – achieved with equal volumes of nitrogen-rich green and carbon-rich brown waste. In aerobic decomposition, part of the carbon is released as CO2 while the rest is combined with nitrogen in the bodies of microorganisms. Higher C:N ratios in compost piles will greatly slow decomposition while lower ratios will result in rotting, release of ammonia, and foul odors. Calculating the Composting Carbon Nitrogen Ratio. Carbon: Nitrogen Ratio The C:N ratio can be determined easily when you know the C and N values and weight of the product you are using. C provides energy and microbial cell structure while N is linked to proteins, enzymes and other substances integral to cell growth and other biological functions. Carbon and Nitrogen - a quick review (con’t) Carbon: Provides energy and supports growth Nitrogen: Provides protein and support reproduction A balanced Carbon to Nitrogen (C:N) ratio of 25:1 to 30:1 is ideal for an active compost pile C:N ratios of as low as 20:1 or as high as 40:1 also produce good quality fnished compost #5 – Achieve the C: N ratio between 25 and 35 to make the most of it Your pile will thoroughly decompose if you find the total C: N ratio between 25 and 35. 28 Medicinal Herbs You Need to Have in Your Garden, How to Grow Hanging Tomato Plants with a DIY Upside Down Planter, Coco Coir: What Is It, Benefits, and How to Use It in Hydroponics or Soil, How and Why to Add Magnesium to Garden Soil, How to Build a Budget-Friendly DIY Compost Bin in 3 Different Ways, 5 Clever DIY Tower Garden Ideas to Make the Most of Your Space, 5 Ways to Use Duck Poop to Enrich Your Edible Landscape Soil, Betony Plant: Growing Guide, Care, Problems and Harvest, How to Grow Mango Trees in Your Home Orchard, How to Rejuvenate and Restore a Neglected Garden to Its Former Glory, 10 Frugal Automatic Watering Systems Your Potted Plants Will Love, How to Till a Garden: Everything You Need to Know, Find the Right Fruit Tree for Your Growing Zone, Growing Stevia: Varieties, Planting Guide, Care, Problems, and Harvest. The results shown on the report page are calculated based on the ideal C:N Ratio (Carbon, Nitrogen Ratio) of 30:1 (30 parts carbon to 1 part nitrogen). Below 40-50%, microbial activity slows and composting stops. Decomposers that actively break down organic matter prefer a diet containing about 30 times the amount of carbon-rich material as nitrogen-rich material, or a C:N ratio of 30:1. The calculator tracks the compost piles carbon:nitrogen ratio, temperature, percent completion and when you turn it. Using the dropdown options above, add various compost ingredients to arrive at a recipe which gives you your desired carbon-to-nitrogen ratio, of C:N. Add as many items as you like, and subtract them along the way as needed. One of the common culprits of composting-science-gone-bad is getting it wrong when calculating C:N ratios. That substance can be soil, compost, or plants. 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