Table 1.

Land uses and their default parameter values used for this study. Potential yield y_p (t ha⁻¹), price received p ($ t⁻¹), variable cost Cv ($ ha⁻¹), nitrogen requirement Nr (kg ha⁻¹), nitrogen boost per tonne of crop yield or pasture biomass grown Nb (kg t⁻¹), disease multiplier dm (−1 means return to minimum level), disease effect on crop s (proportion), weed seed survival p_s (proportion), competition index k_c, sowing density d_c (plants m⁻²), crop–weed antagonism index a_wc and weed seed return wsr (proportion).

Name	yp	p	Cv	Nr	Nb	dm	s	ps	kc	dc	awc	wsr
Wheat	3	350	250	160	0	3	1	0.05	0.091	150	1	1
Lupins	1.5	250	200	0	50	−1	0	0.03	0.08	40	1	1
Pasture	3	0	80	0	25	−1	0	0.03	0.08	50	1	0.1
Canola	1.3	550	250	120	0	−1	0	0.03	0.08	100	1	1