Soil Fertility Design Make
The five key areas of improvement
Improved access to the composting systems
Improve existing composting methods
Improved use of the compost
Additional ways to improve soil fertility
Improved planting methods
With these five key areas of improvement, four of them will be ongoing for the future of the gardens. The improved access to the composting systems will be very important in the first year and will be the foundation of this design. Having good access to composting systems will make composting much easier and will encourage me to keep improving my methods. From experience, without accessible compost systems, they tend to get neglected.
The other four key areas will be built upon each year. It will be in the second year of this design that I focus on the additional ways to improve soil fertility and look at improved planting methods. This is due to focusing on the design foundations in the first year, with also making a start on improving my existing composting methods along with the improved use of the compost.
Improved Access To Composting Systems
As part of the kitchen garden reloaded design, I made sure that easy access to the different composting systems I was running would be also included in the design. I cover the building of the new composting locations in that design. I will also mention the locations here because it was through thoughtful design planning, working on both designs at the same time that lead to the final decisions for the new locations.
Main Composting System
My main compost heap is located inside two pallet sides with the plastic compost bin next to it. With the new location, I have access to the main heap from two sides allowing me good access to turn the heap. The plastic bin I do not turn so it’s not as important to have full access leaving me some space to store compost in bags next to it.
Having paving slabs in front of the heaps makes access very easy, something that was missing and much needed in the previous location of these heaps.
The Leaf-Mould Cage
The leaf-mould cage has been relocated to the top corner of the garden next to the hedge. This will allow me to fill the cage and give me space to turn the heap.
The system I use for the cage is very basic, rabbit wire shaped to fit the size of the space. Once I start filling the cage the bulk of the leaves holds the cage up. To turn the leaves I can open the front by pulling the wire open. Due to the nature of how the leaves compost down, having such a cheap and simple design seems to work great.
The Wormery
The wormery is now located next to the house sitting on a gravel base for easy around-the-year access. I also have room to work when lifting out the trays and harvesting the vermiculate.
As odd as it may sound having a wormery you are essentially a worm farmer, and as with any farmer of animals, you have a responsibility for the welfare and care of your animals. In this case, the animals are worms that need to be looked after. Having a dedicated location that is clean with good access is very helpful when monitoring the conditions of the wormery, for me, it also makes me more conscious of the fact that I have animals that need to be cared for.
Improve Existing Composting Methods
This is another key area that I wanted to focus on in the first year. With already composting onsite, improving the existing composting methods would only need a little more thought and planning than usual. I didn’t get to where I wanted with the wormery but instead made excellent progress working with the main composting heaps.
Summer Compost Heap
I’ve been looking forward to building my first summer compost heap in the new composting location. Before the build I was able to gather and store some of the materials ready for composting in the space next to the heap, other materials will be cut on the day.
In the below photographs, I share the creation of the heap along with a few photographs of how the heap progressed through the summer. I’m enjoying finally having some space to work.
Autumn Compost Heap
The autumn compost heap will be colder and will take longer to compost down than the summer heap. For this heap, the materials used will be much dryer due to the time of year. The Chlorophyll will no longer be present in much of the plant leaves, layering again the dry high carbon materials with the contents from the plastic bin will help the composting process. I expect this heap to be ready for mulching the bed's early May ready for planting out.
In the photographs below taken 07/11/2021 you can see how very different the autumn heap is from the summer heap regarding the materials used.
Improved use of the compost
In past years the compost I’ve made has been used to mulch the beds along with a mulch around the fruit bushes. With the sudden need for compost to fill the new raised beds, I’ve got a little more creative in how I use my compost.
The largest along with the two new raised beds next to the path, a similar process was used to the description below. Where they differ is in what I used to fill the bulk of the bed. For these three I had no compost from the main heap, so I used all the previous year's leaf-mould mixed with old compost from the raised bed that I removed. I also mixed biochar into these beds. When it came to planting, I used a few handfuls of bought-in compost to give the plants a boost to set them away growing in their new home.
Composting Beds
The below photographs taken 07/11/2021, are a step-through of the process I used when filling the latest raised bed. Unlike the other beds, I now had access to some partly composted material from the new main compost heap. This compost will be used as the bulk material and will have a further seven months to continue to compost before planting the bed up in late May next year. Over time the woody materials in the bottom of the beds will slowly compost down giving the beds a continuous boost for years to come.
Additional Ways To Improve Soil Fertility
In the idea section of this design, I gathered a few thoughts on additional ways to improve soil fertility.
With this year's comfrey crop I was able to follow the plan of using the first cut around the fruit trees and goji bushes. The second cut gave me a very large amount of material, most of this went into the mail compost heap leaving me enough to add to the tops of the raised beds in the front garden. The third cut gave plenty of material to go around all the fruit bushing along with the fruit trees in the back garden.
With regards to compost teas, these will be used next season. Keeping to this year, I also made more use of what I have plenty of, leaves. Below are a couple of sections, the first on improved use of leaves as a mulch with the second on using leaves as a mulch on the raised beds.
Deep Mulching
As with previous years, I’ve once again mulched the back garden with fallen leaves gathered from the car park in front of the house. The major difference this year is the number of leaves that have gone into this garden, not that I have counted them all but there has been a substantial amount more than in past years. I’ve also coved nearly all the growing areas in the garden, the exception being the chamomile lawn inside the stone circle.
This year when I first put the leaves into the garden I covered most parts with a mulch of around 6 -12 inches deep, I also had large piles in places to enable me to keep spreading more leaves out as the leaves started to compost down.
The concept of this garden is for it to resemble a forest garden (See Forest Garden Design). The most sustainable and earth-friendly way to grow food is the way which is most like the natural vegetation of that area. In Britain it’s woodland. My logic here for the use of so many leaves is to give the soil what it once would have had a lot of when it was woodland. Gardening is just a big experiment learning from what works and what doesn’t, next year I might be using even more leaves, or I might delete this section altogether.
Leaf Mulched Raised Beds
Not having to look too far or think very creatively, the obvious material to give the raised beds a mulch over winter is you guessed it, leaves. With my endless supply of autumn leaves, I topped three of my raised beds with as many leaves as I could push down onto the tops of the beds. I quickly learned that on windless days I could use a much deeper mulch, this gave me time to fill the beds and spread the old compost bags to the top of the leaves, then using wood or stones to hold everything in place. On windy days I would press the leaves down on the beds, turn around, then watch the leaves blowing past me looking for their last taste of freedom.
Year Two
This will be when the design gets more fun. No more major groundwork, no major planning just a time to play and have some fun.
In year two I will complete the outstanding improvements I never got around to doing in year one.
These are
- Improve the wormery – Add additional trays, try feeding the worms with a more varied diet
- Improve the use of the compost – Be more observant in the garden, adding a few handfuls of compost mulch when plants look like they need a boost.
- Keep improving my use of comfrey – Use the extra cuts around different plants to see what happens, give the worms some to eat.
- Compost teas – Get the activated aerated compost tea system up and running.
- Improved planting methods – Probably my most fun one, look at what I’m going to be planting this next growing season and plan out using the companion planting chart in the Idea section to see which plants grow best next to each other and learn what plants may benefit from been moved in the garden that could be growing next to not so friendly plants.