Compost Sampling for Nutrient and Quality Parameters: Variability of Sampler, Timing and Pile Depth
Compost Science & Utilization, (2012), Vol. 20, No. 3, 141-149. Authors: William Brinton, Jean Bonhotal and Tom Fiesinger. http://solvita.com/wp-content/uploads/2012/09/Brinton-Bonhotal-Fiesinger-CSU.pdf