The leaves emerge from the branching rhizomes that lie just below the soil surface.
Gardeners can grab a few immature spuds just below the soil surface, leaving the rest to harvest later.
The water table was established at a depth of 45 cm below the soil surface.
Although located partly below the soil surface, much of this biomass compartment is functionally above-ground (the basis of shoots).
Rod weeders are used for weed control in open unplanted fields; their working element is a square-section rod that revolves a few inches below the soil surface.
In seed germination, the cotyledons may remain below the soil surface within the seed (hypogean germination) and may function in digesting and absorbing endosperm (corn).
Dense stands will grow only where the water table is between 5 and 20 feet (1.5-6 m) below the soil surface.
This arrangement allows seepage irrigation to deliver water to plants from below the soil surface through the precise management of water table levels.
Colonies of small weeds are quickly done in with a winged weeder, colinear hoe or some other hoe having a sharp blade that slides parallel to and just a fraction of an inch below the soil surface.
Choose a pot a bit wider than the tuber itself, Ms. Karpeichik advised, and plant it with its little nubs, or eyes, facing up, about an inch below the soil surface.
For these two soil types, shallow WTs within 1.0 1.2 m below the soil surface influenced infiltration.
