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Homepage / Dirt science and getting grubby!

Dirt science and getting grubby!


Rectory woods

My first few weeks in Cranfield have been a bit overwhelming, with a complete difference in learning style (more independent learning), handing in assignments, learning how to paraphrase and reference properly to avoid plagiarism, and learning a new software from scratch but I am happy that I have made new friends during this time and they have made the transition and learning process easier.

Dr Jacqueline Hannam came in this week, all smiles, I knew I was in for a treat and I wasn’t wrong. I learnt about the physical, chemical and biological components of soil and their interactions. From identifying the different soil textures (sand, clay or loam) by moistening the soil sample and feeling it with your fingers, to identifying the different structures of soil and their effects on soil biology, compact or friable with aggregates respectively as seen below:

Compact soil   friable soil

The major organisms which can be seen in the soil are earthworms also known as soil engineers (picture below) and they help to alleviate compaction, aerate and increase porosity in soil due to their burrowing activities.

Earth worms


The different horizons of the soil (A (sandy loam),B (loamy sand),C (sand)) are also shown below, colour change which also indicates organic matter levels is evident in the different horizons at the Parrish farm.

Soil types

Learning about soil as a carbon store (three times more than the atmosphere) and the Nitrogen cycle, different forms of Nitrogen available for plant use and their effects on the soil and plant growth, the effect of PH on phosphorus mobility, biosolid (BS) and their benefits and the numerous methods of analysing these chemical properties was great. Dr Ruben Sakrabani says there will be in-depth explanations in the next module (can’t wait!). Lots of case studies too to aid understanding. Finally another visit to the Rectory Wood site (pictures below) by the Land Reclamation and Restoration MSc students as “consultants” to obtain data for decision making that will help us reach the restoration target for the woodland.

Soil is a living system that renders a lot of services (provisioning, regulating, cultural and supporting) to us hence the need to utilise it sustainably since it takes a very long time to renew (1cm in 1000 years)! I had great fun learning this week (lots of team work and field trips) and I look forward to my next module. In all, it was a fun and enjoyable week with the integration of class room learning and relevant field and industry experience which I am discovering is unique to modules here at Cranfield.

I’ve had the best learning experience here with a beautiful and serene environment, excellent IT training sessions for different skills, career prospects awareness and lots of PC labs too (Building 90 is my favourite). I hope to enjoy my year in Cranfield to the maximum while acquiring relevant skills along the way.

Thank you Cranfield!

Blessing Adejoh

Written By: Cranfield University

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  1. Babatunde Olugbenga Samuel 21/11/2018 at 8:06 pm - Reply

    This is a good article, keep up the good work Blessing.

    • Blessing 16/04/2019 at 11:51 am - Reply

      Thank you

  2. Solomon 15/03/2019 at 3:13 pm - Reply

    Honestly, you just made this part of science alive to me! Good work!

    • Blessing 16/04/2019 at 11:52 am - Reply


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