initialize with null values in case the compute variables aren't present in this keyfile
initialize with null values in case the compute variables aren't present in this keyfile

Ecotrust/growth-yield-batch,jgcobb3/growth-yield-batch,jgcobb3/growth-yield-batch,jgcobb3/growth-yield-batch,Ecotrust/growth-yield-batch,Ecotrust/growth-yield-batch,jgcobb3/growth-yield-batch,Ecotrust/growth-yield-batch,Ecotrust/growth-yield-batch,Ecotrust/growth-yield-batch,jgcobb3/growth-yield-batch,jgcobb3/growth-yield-batch