This
package includes the calculated LC50,mix in [mg/kg-soil] resulting
from the soil residue of up to 20 active ingredients of pesticides used in 9
cropping systems, the number of active substances in the mixture, and the percent decline in earthworm population size in these
cropping systems. The 9 cropping systems under consideration are: corn,
soybean, wheat, cotton, vegetables and fruits, rice, orchards and grapes,
alfalfa, and other.