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We then put these also into three other tulgren funnels. By then it was lunch time and we all ate together. After lunch I weighed the soil samples and got to see the organisms that were in the beaker under the tulgren funnel. At 3.30 p.m I left for home. 11th November: In the morning, I was given two types of earthworms i.e. Lampito mauritii and Perionyx excavatus and told to observe them.
We put the soil samples in the tulgren funnel and observed the arthropods that fell into the beaker under a compound microscope. We also observed some preserved specimens of microarthropods. 15th November: Pounded 100 gms of soil sample and then sieved each soil sample through 5 sieves. Then weighed the soil in each sieve and noted this down. 16th November: Did sieving of soil in the morning.
10th November: Sir gave me a book on earthworms to read, then Jagan took me down to the field. There I was able to observe many organisms other than earthworms. We took a soil sample from one place and then went back to the lab where we put the soil sample into the tulgren funnel. I then went and brought three more samples from the vermi-tech pit.
14th November: Sir did not arrive today either. With the help of Jagan I used the Infrared Moisture Balance to find out the moisture content of the soil samples which we had taken on Saturday. After we finished one sample, the voltage started fluctuating so we used the tulgren funnel instead. Then Jagan sent me to get soil samples from the field and from the area near the Boarding.
Later I started to observe the different types of earthworms, their movements, colour and other characteristics. I also learnt a lot about different types of soils, their textures and nature, and was taught how to take soil samples using the tulgren funnel.
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