Laboratory take on using methylene blue to determine soil cation exchange capacity: file:///Users/NimKibbler/Downloads/Determination%20of%20soil%20CEC%20using%20methylene%20blue%20student.pdf
Dave the longest UK worm (40cm) may have a challenger! Though photo makes one wonder what other things people use to show scale!? https://t.co/NHmOra98Q7
Dr. Dirt is one of the only soil teaching sources I've seen that promotes the joyous of activity of making art with soil. Soil used as a pigment for 1000's of years and long may it continue! https://t.co/5vGCNSnkxR
N2O emissions from soil commonly looked at as a chemistry problem, but should we also be considering the biology. Namely the scared biology! https://t.co/8lzHFSm1El