using the microscope with the finished compost

The successful compost is ready – it has now fallen to roughly ambient temperature.

1507_otl_AS_fourweeklyunfortunately the temperature logger failed when I was on holiday so I don’t know what the profile was as it cooled down. And yes, it didn’t spend three times three days above 55C – more like three days and two days. There’s still more to learn here.

Time to look at this and see what sort of microbial stuff is in it. I shook this up with about 20 times the amount of water and put a drop on a slide

fungal hypah and bacteria
fungal hypha and bacteria

According to Elaine Ingham’s rules of thumb this is probably a good sort of soil fungus, because if the little round cocci are 1µm in diameter the fungal hypha is about 4µm. I could see that this one was slightly tan coloured, but the incandescent lamp of the microscope plays havoc with the white balance of the camera, making everything bright yellow.

1507_hypha_DSCN2669_lznThis next one is narrow and clear, so not good in the morphology  rule of thumb that fungi < 3µm in diameter and clear are undesirable soil fungi.

I saw no protozoa or micro-arthropods. That’s either because there aren’t any or because I didn’t recognise them. The dilution is high, – it appears that Ingham starts at 5:1 so I’m four times less likely to see these at 20:1.

 

Leave a Reply

Your email address will not be published. Required fields are marked *