Vol. 51—1997 - NorthEastern Weed Science Society

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Waggone
December 24, 1994
140
As the thi
herbicide
raising yi
grow the 5
In the fir
model of e
more weeds
means 0.2
bone is connected to the leg bone, kg/ha
s connected to killing weeds l killing weeds to
ld, and raising yield to shrinking the hectares to
tons.
t joint, herbicide to weeds l Fig 8 shows that a
ch additional 0.01 kg/ha atrazine killing 3.6%
fits reasonably well. The 3.6% per 0.01 kg/ha
ills 50% and 0.8 kg/ha kills 90%.
..
oL-------.ii::::=:::-=== _ _a...J
o 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
Atrazine ppm or kg/ha
Fig 8. Th killing of oats, representing weeds, by increasing
doses of trazine. John Ahrens, who performed the experiments
in 1961-2, doses in ppm atrazine per soil, which
I assume