field drain, sublateral drain, field ditch; a drainage ditch between patches or strips in a field
field drain, sublateral drain, field ditch; a drainage ditch between patches or strips in a field
field drain, sublateral drain, field ditch; a drainage ditch between patches or strips in a field
field drain, sublateral drain, field ditch; a drainage ditch between patches or strips in a field
field drain, sublateral drain, field ditch; a drainage ditch between patches or strips in a field
field drain, sublateral drain, field ditch; a drainage ditch between patches or strips in a field
field drain, sublateral drain, field ditch; a drainage ditch between patches or strips in a field