Table 6. Effect of different herbicides on following weed emergence in corn-soybean mixed cropping fields

Weed emergence parameters	Treatments					SEM	p-value
	No herbicide	Pendimethalin	Linuron	S-metolachlor	Ethalfluralin
Chenopodium album (No/m2)	159.3	0	0	105.6	27.8	30.8	0.062
Digitaria sanguinalis (No/m2)	509.3b	31.5a	266.7ab	16.7a	9.3a	60.8	0.004
Portulaca oleracea (No/m2)	35.2	20.4	0	22.2	25.9	7.5	0.208
Echinochloa crus-galli (No/m2)	335.2b	64.8a	1.9a	0a	61.1a	16.7	<.0001

Variables having different superscripts in the same rows are significantly different (p < 0.05).
SEM, standard error of the mean.