0 a tool consisting of a twisted rod of metal attached to a handle, used for making large holes in wood or in the ground
As such, the solid stem auger was used in instances where bentonite was encountered in neighbouring boreholes.
They were recovered with a 5-inch bucket auger, and soils descriptions were per formed immediately.
Soil samples were collected with an auger in each soil layer and then air dried at ambient conditions and passed through a 2-mm sieve.
Auger-coring in selected plots to a depth of 1 m later in 1995 revealed no sign of nitrate accumulation.
Each sample consisted of 500 g of soil from 0-6 cm depth extracted with a soil auger.
At sowing and harvest in each year, soil samples were collected from each plot using a 5-cm diameter auger.
Boreholes were advanced using either an air rotary system or a solid stem auger.
In each plot, 12 diagonally distributed subsamples were taken from the centre of the ridges to a depth of 0.15 m using a soil auger 0.07 m in diameter.
