What it means to have healthy soil, might depend on who you
ask. For instance, a farmer might say that healthy soil will retain water and
provide crops with the nutrients they might need. These are not technically
wrong answers; however, they are more incomplete than they are correct. There are
a lot of things that determine the health of soil and this article will help
explain what they are, in addition to explaining what they mean.
Indicators of soil health
There are a few different ways to determine if soil is
healthy or not, some indicators are more scientific like testing the pH of the soil,
but we will not talk about those more complex indicators here. Instead we will
focus on the simpler indicators of soil health. The first being whether there
is anything growing in it already, chances are if there is lots of green
vegetation already growing in it the soil is fairly healthy. Another indicator
that is easy to determine is if there are earthworms living in it, the more
that live in it the better too. Earthworms play a very important role because
they do a few different things for soil. One thing they do is that they help
decompose organic matter like dead leaves and turn that into fresh healthy
black soil. In addition to being an important decomposer within the soil, they
also provide oxygenation to the soil by burrowing through it. This is important
because if there is no oxygen contained within the soil, nothing will be able
to grow because that is an important nutrient for just about every living
thing. One more indicator of healthy soil, is that there is a plethora of other
organisms living within the first few inches of soil. If there is a lack of
other things living there it usually means not all the nutrients necessary for
life are present.
Environmental benefits of healthy soil
There are quite a few benefits that healthy soil will
provide for the environment. There are 5 functions soil provides that are
essential to the health of an ecosystem, whether it be a garden in your
backyard or a forest far away from your home, it still does these 5 basic
functions.
Regulating water
Healthy soil will help control where any water in the environment will go. Whether it is rain, snow that has melted, or water from your garden hose it plays a large role in whether water pools up or runs off to another area.
Cycle nutrients
Just to name a few nutrients that are stored within the soil there is nitrogen, carbon, and phosphorus. These are all very important for the growth of any plants which form the base of most food chains, so it is vital that the soil can provide these nutrients to anything growing in it.
Sustain animal and plant life
This one is fairly self-explanatory, healthy soil is necessary for just about anything to live or grow in it. If there are not the proper conditions, nothing will grow or be able to live in it.
Support and physical stability
Healthy soil will provide anything growing in it, like grass, a place to anchor their roots in order to grow vertically. If the soil is loose or not packed somewhat tightly, nothing will be able to root itself properly within the soil and will be unable to sustain its structure in the lightest wind gusts.
Protection and filtration of pollutants
Arguably one of the more important functions of healthy soil is that it can filter out, detoxify, or degrade harmful pollutants. It also keeps them from reaching underground water, called aquifers, which is obviously important to humans because we use a lot of groundwater.
Composting food scraps and garden debris is one of the easiest sustainable practices you can take on. And your reward is rich, nutritious soil you can use in your garden and patio pots! You don’t fancy equipment or a lot of space and within one season, you can “grow” a large, usable amount of compost soil. Best of all, you create a cycle of sustainability in your garden. This article will teach how to start a compost pile, how to feed it, and how to maintain it through the season.
The Basics of Composting
Creating composted soil depends on decomposition and decay of organic materials. Each compost pile is a balance of browns (dry material such as fall leaves or wood shavings) and greens (such as produce scraps or grass clippings). Too much of either and the balance is thrown off (you’ll know right away because it will look and smell funny). In this mixture, will be active bacteria, worms, and insects with a little heat thrown in. Together they break each piece down into nutrient-dense, organic material that plants absolutely thrive in.
You cannot put meat, dairy or processed foods (like bread) in your compost pile as it will upset this balance (and attract unwanted critters). You can, however, sparingly add coffee grounds, eggshells, or ashes. Again, the smell and feel will tell you right away if there’s too much of one thing. (We cover this in detail in another blog post, “Compost Troubleshooting” here.)
Where to Locate Your Compost Pile
Compost piles need heat to work so choose a spot that gets lots of sunshine and (if using a barrel), choose a dark color that will absorb the heat. Don’t choose a location too far away from where you normally work outside or is hard to access in the winter. But you also don’t want it close to any neighbors who may not appreciate the process. It is decaying material and not the most beautiful part of gardening!
Types of Compost Containers
There are two common compost set-ups: a closed bin or barrel or an open, fenced in area that sits on the ground. This allows beneficial insects and worms easier access but can be unsightly. A bin or barrel is more practical in cases with limited yard space or where keeping the pile completely contained is necessary.
An open bin style works well on larger properties with lots of compost material. As shown in the photo, you can even create a multi-step system where new material goes into one bin and then is moved through each new bin as it decomposes. An open system is more susceptible to critters and should be covered to avoid too much moisture.
Choosing which type of storage is really based on personal preference and location. When done correctly, a compost pile will not smell bad but it can attract critters (if left open). For urban and residential properties, most people choose a closed container such as a large plastic tub or a barrel on a stand. This method also limits the quantity of compost produced and it is unwieldly to get the finished product out.
DIY Compost Bins
You can build your own compost pile by installing a three-walled enclosure built as you would a fence. This structure uses bare ground as its floor and the opening allows you to turn the compost with a rake or shovel. The drawback with this method is it will attract critters when you drop in fresh kitchen scraps.
For enclosed barrels, choose a large garbage can or barrel with a removable lid. Poke holes along the sides, bottom, and lid so air can move through and water can get in and drain out. Many large home stores and online retailers also offer premade compost barrels – some on a stand with a hand crank so you can easily give it a turn each day.
What to Add to Your Compost Pile
Start with twigs, straw, ash, hay, or another dry/brown material as your foundation. This allows the bottom of the pile to have more aeration and not become a slimy mess at the bottom. Your first layer, and every other layer thereafter should have a healthy dose of loose, dry, brown debris. Avoid large sticks, branches, or logs, as they can slow down the process. Larger things are harder to compost so be sure to break them down into smaller pieces before adding them.
Add produce scraps, grass clippings, and plant debris but do not add meat, dairy, or oily and processed foods. Avoid using too many onions or citrus peels. They break down slowly and can kill off beneficial insects. Using kitchen scraps is a great way to reduce your indoor garbage and utilize things you would otherwise throw away. Keep a container with a tight-fitting lid in the kitchen where you store scraps until you’re ready to add it to your pile.
Any green plant matter can also be added but avoid adding weeds or leaves from diseases plants (such as tomato blight). These will remain in the finished compost and spread new weeds or disease when you use it next season.
Animal waste, or manure, is also a form of green compost. Avoid using dog or cat waste in gardens for crops meant for consumption. Their waste contains microorganisms that aren’t ideal for a healthy garden, especially ones growing food. For those of us that have fish, tank water is an excellent resource to use for your pile! Tank water is rich in nitrogen and phosphorus, both of which are important to maintaining your pile’s carbon cycle. Just be sure not to use too much water, as this can cause your compost to become overly soggy. Store excess in gallon jugs to use later!
Other excellent choices for the inclusion of animal waste are chicken, cow, horse, sheep and goat waste. Unless any of the animals are being medicated (aside from vaccinations), their waste is completely safe to use! Medications like antibiotics can be passed through the waste and into the crops. If the animals are sick, and/or on medication, avoid using their waste until they are healthy.
Brown scraps are usually found outside in the yard. Fallen leaves, dried grass clippings, chicken bedding, or small twigs. These materials are also the ideal foundation for your outdoor pile!
Maintaining Your Compost Pile
Having a good ratio of green scraps and brown scraps is the key to a successful compost. 50% green to 50% brown is a good ratio of each, and if layered correctly, there won’t be much maintenance. Composting, for the most part, will take care of itself. Checking on it occasionally and turning it with a pitch fork or shovel is about all that needs to be done to the pile – typically after adding scraps or at least twice per month. If the pile becomes overly soggy or starts to have a foul odor, toss in some brown scraps, make sure it gets mixed well and has plenty of aeration.
A healthy pile will stay at an average temperature of 150 degrees. This keeps things moving, including insects and microbes that all work together to help along the nitrogen cycle. Towards the end of the process, it will have cooled down significantly. If it’s cold out, the temperature will most likely be much lower depending on the size of your set up.
Once the compost turns a rich brown color and has an earthy smell, it’s ready to use! By this stage, everything you put in the pile should be completely broken down and unrecognizable. The pile will also have cooled down in temperature. Just scoop it out and mix it into your existing garden beds with a fork or shovel.
Composting in Winter
If you have a pile that isn’t finished and winter is nearing, don’t worry. Worst case scenario, the process is slowed down. Keep your compost taller and wider if you’re banking to keep your pile going during the winter. This will allow for the organisms breaking your compost down to stay alive and thrive in the winter months. If you live in an area that gets extremely cold during the winter, be sure to start it in a place where it stays sunny most of the day, and expect the process to be a bit slower.
Maintaining compost isn’t a difficult process and anyone can do it. It is an excellent addition to the garden, will yield beautiful crops, and is an awesome way to sustain the garden season after season!
The best way to tell if your compost is ready for use is if it looks like soil or if it still resembles whatever you put in your composting area. If it looks like soil and does not look like the things you put in to be composted, it is ready for use! Another easy way to tell if it is ready, is if it smells earthy, it is ready for use! If you are still unsure after these two techniques, there is one more you can try. Put some in a sealed container and remove the air from it; a plastic bag works best for this. Let it sit in the bag for a few days and after this open it up. If you detect any sort of funky smell coming from it, your compost is not quite ready for use yet and needs more time to decompose.
Where to use compost
As far as usage of your compost, there really is not a limit to where you can use it. Any plant that uses soil will love a compost home. It can be sprinkled and then raked into flower beds or gardens; it can used to fill outdoor containers; you can put some in your indoor plants as well to help maintain nutrient rich soil. It can also be spread around a newly planted tree to help it grow. Compost is especially helpful in enclosed raised beds which over time lose soil health. Essentially, compost is good to use just about anywhere you might try to grow something. It will provide the necessary nutrients to the soil to improve the growth of whatever you might try to grow.
Helpful tips to use compost more effectively
Generally speaking, indoor plants do not need to have compost added in the amount or frequency of an outdoor garden. This is mostly because an outdoor garden will have more plants removing more nutrients compared to an indoor plant. For indoor plants you only need to add compost every 6 months or so and you do not need to add more than a handful or two provided it is not a large plant.
For outdoor gardens, there are a few different approaches you can take. In the fall, add a layer of compost that is a few inches thick across the entire surface. Then in the springtime, till the soil so the layer of compost you added in the fall gets mixed in thoroughly with the topsoil. In addition to this, it would also be helpful to add a small handful to each hole as you plant something in within your garden.
What not to do when using compost
The most important thing to avoid when using compost is to ensure it is actually decomposed completely. If food scraps are still present or not completely decomposed, you may attract critters or pests and by removing it from your composter, you will significantly slow down the process. Be patient and wait until your compost looks and smells like soil.
Once it’s ready, use like you would regular soil. Be sure to till it in well with existing soil and plant as you normally would. You may be able to cut back on fertilizer when adding compost as this soil will be much more nutritious for plants than regular garden soil.
