Worm composting science facts are helpful to understand how important vermicomposting is to the health of the soil. This is a continuation of a summary of worm composting facts from a survey in Australia. Please see my blog post Worm Compost Science Education Facts for the the introduction and more science facts on worm composting. There is a lot of information here so I divided it into two blog posts. In this picture you can see worms working on creating worm compost from a cantaloupe rind.
More Worm Composting Science Facts:
In all growth trials the best growth responses were exhibited when the vermicompost made up a relatively small proportion (10-20%) of the total volume of the container medium. (p. 17)
Surprisingly greater proportions of vermicast in the plant growth medium have not always improved plant growth. (p. 17)
There is a substantial body of evidence to demonstrate that microbes, including bacteria, fungi, etc. also produce ‘plant growth regulators’ such as: auxins, gibberellins, cytokinins, ethylene, and ascorbic acids. (p. 18)
Since microbe population is significantly boosted by earthworms, large quantities of ‘plant growth regulators” are available in vermicompost. (p. 18)
Vermicompost is rich in humic acid which promotes plant growth and nutritional uptake. (p. 19)
Several studies have shown that earthworms effectively bioaccumulate or biodegrade several organic and inorganic chemicals. (p. 19)
Vermicompost use in crops inhibits soil-born fungal diseases. (p. 19)
The ability of pathogen suppression disappeared when the vermicompost was sterilized, indicating that the biological mechanism of disease suppression involved was microbial antagonism. (p. 19)
Buckerfield found that the stimulatory effect of vermicompost on plant growth was apparently destroyed when it was sterilized. (p. 22)
The page number at the end of each fact gives the reference to the research in the original survey! As you can see there has been a lot of favorable research on worm composting.
Purchase My PowerPoint Video, an Introduction to Worm Composting!
I created a PowerPoint video which I saved as a movie, as an Introduction to Worm Composting. This is a very good introduction with my own photos and video clips on my experiences with worm composting. I tell you what common mistakes I have made to save you from making these mistakes yourself! There are two choices:
Download the Power Point/video to your computer for $1.99
Or rent it for $.99.
Click on this link which will take you to Gumroad, a secure site, where I sell my products:
Then click on Rent or Buy depending on which you want to do.
Lastly, click on “I Want This”. Gumroad processes your payment and then you will be able to download my video.
Here is a preview of my PowerPoint video: the Introduction and Chapter 1:
I have discovered the hugelkultur composting method! For years I have had the dilemma of what to do with the debris from my garden. This includes fallen branches and dead flower and vegetable stalks. I didn’t want to bag them up to be deposited in the landfill. I made a few compost piles with this garden debris. Read my last post on sticks in the compost pile for my conclusions about adding sticks and stalks to the compost pile.
Introduced to Hugelkultur Composting Method
A while ago, Veterans Compost emailed me a link to an article about the hugelkultur composting method. Hugelkultur involves creating a mound by piling soil, leaves, compost and any other vegetable matter around tree stumps and branches until you have built up a structure 3-4 feet high. Some people dig a trench first to put the tree stumps in. This is not necessary. You can create this mound on top of the ground saving yourself a lot of work digging!
It is actually a huge raised bed shaped like a small hill. The theory is that as the wood breaks down and composts, it will supply nutrients to whatever is growing and help retain water in the mound. There are pictures on the internet of these hugelkultur mounds (be sure to scroll down on the page to see the pictures). There are all kinds of plants growing abundantly out of them. The good thing is that the mound is permanent. You don’t have to dig it out or turn it as you do with a compost pile. So you don’t have to sort through the sticks and stalks that haven’t composted yet.
Hugelkultur comes from the Permaculture Community
Permaculture comes from the first part of the word permanent and the second part of the word agriculture. This term was introduced by David Holmgren and his teacher, Bill Mollison, in 1978. Permaculture is creating ecosystems that are sustainable and self-sufficient.
Hugelkultur gets its ideas from watching what happens in a forest as fallen trees decompose. With a hugelkultur mound, the wood is covered with soil, compost, leaves etc. to enable it to decompose faster.
My Version of a Hugelkultur Mound
I loved this idea of composting. No tree stumps were available for me to compost. So I modified this idea using lots of branches and garden debris. Last fall I started making a long pile of these. I would layer my pile with leaves, compost and soil , then garden debris and then repeat. If making a mound with tree stumps works I feel that my method will work also! You can get an idea of my mound from this picture. It is about 2 feet high. I am going to plant it with Tahitian Melon Squash. I will keep you posted on how it progresses! Continue reading →
Have you ever wondered about putting sticks in the compost pile? And I also mean dead flower stalks which are often similar to sticks. I have had this question for a while about putting sticks in the compost pile. Because what are you supposed to do with all the sticks and dead flower stalks that come from a garden and a yard (if you have any trees…) every season.
Experimenting with Sticks in the Compost Pile
So last year I decided to put sticks in the compost pile. And dead flower and vegetable stalks. I figured what the heck–I didn’t want to put them in the trash. I also thought that they would provide air pockets in the compost because everything can’t squish together with sticks and stalks criss crossing in the compost pile.
Now a Year Later…
You live and you learn or should I say I live and I learn. My compost is ready but the sticks and stalks have not composted. They are really a pain in the neck as I dig out my compost. They are so annoying. I always have to pick them out. Here is a picture of some sticks and sunflower stalks that did not compost in my pile.
It is a matter of opinion about how annoying these non -composted sticks and stalks are. It could be that it wouldn’t bother you at all. In the meantime, I have decided that I am not including sticks in my compost pile anymore. And that also includes dead flower and vegetable stalks. Some dead flower stalks are just like sticks. For example, sunflower stalks are large and rigid. Pepper stalks are also quite rigid and hard. So now I have a new dilemma. What am I going to do with the sticks that fall from my trees and all the dead flower and vegetable stalks at the end of the season. I do not want to send them to the landfill–that is for sure! I am thinking about modified Hügelkultur. I have already started working on this idea and will share more about it in my next blog post.