Column	Description
treatment_code	Denotes treatment code, the combination of factors for the plot
factor_crop_rotation	Denotes factor crop rotation, I=system with livestock, II=system without livestock
factor_PK	Denotes four different levels of phosphorus (P) and potassium (K) addition
factor_N	Denotes four different levels of nitrogen (N) addition
livestock_manure	Denotes if the treatment recives any livestock manure
	
Note: The design of these experiments are complex and differs between sites. Please visit the corresponding GLTEN metadata entry for more information.