Placement of the herbicide beneath the soil surface with minimum mixing or stirring of the soil, as with an injection blade, knife, or tine.
Water that does not contain those minerals that pre- vent free lathering when soap is added (see Hard Water).
A chemical that is more toxic to some plant species than to others (may be a function of dosage or mode of application).
Early stages of growth of crop plants or weeds, within a few days or weeks after seed germination and emergence.
The reservoir of viable seeds present in the soil.
The basal or early leaves of a plant, before bolting.
Underground rootlike stem that produces roots and leafy shoots.
A plant population that does not respond to rates of a herbicide to which it was formerly susceptible.
The amount of pesticide residue that may legally remain in or on a food crop.
The amount of pesticide that is on or in the crop at the time an analysis is made.
