Weed biomass
Weed biomass
Weed biomass
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<strong>Weed</strong> <strong>biomass</strong> used to quantify weed suppressive ability<br />
<strong>Weed</strong> <strong>biomass</strong> (g m -2 )<br />
400<br />
300<br />
200<br />
100<br />
0<br />
2003<br />
APO fitted<br />
APO observed<br />
IR60080-46A fitted<br />
0 100 200 300 400 500 600<br />
Plant number m -2<br />
IR60080-46A observed<br />
<strong>Weed</strong> <strong>biomass</strong>: Y wc = N w / (b w0 + b wwN w + b wcN c)<br />
2004<br />
b wc → crop competitiveness, time of weeding<br />
N c → seeding rate<br />
<strong>Weed</strong>ing at<br />
3 WAS <strong>Weed</strong>ing at<br />
2 WAS<br />
For both years: APO twice as competitive as IR60080<br />
0 100 200 300 400 500 600<br />
Plant number m -2