According to the result of field trial, it is showed that the formulation product of tribenuron-methyl+MCPA-Na+carfentrazone-ethyl 55% WP can control effectively broad-leaved weeds in the wheat field at the level of 600 to 700 g/hm2.

Studied the effect on tribenuron-methyl to control broad-leaved weeds in summer cornfield and the safety of tribenuron to corn and the effect on tribenuron-methyl to control weeds in summer cornfield with acetochlor, alachlor· acetochlor·atrazine and propisochlor.

The investigation of bio-attributes and community of broadleaf weeds in field of Harbin;

Study on prevention and control of broadleaf weeds in wheat fields by affinity;

Results showed that fluthiacet-methyl 20% WP had a good control effect to broadleaf weeds at 8-10 g a.

The integrated control effect of ecological control measurement to the broad-leaf weeds of highland-barley field;

The effects of14%bensulfuron-methyl · dicamba WP for control of broad-leaf weeds in wheat,maize,sugrcane,rice fields were studied.

Its control effect on broad leaf weed is over 90%.

The control effect for broad leaf weeds was above 85% with 72% 2,4-D amine salf AS at the rate of 450 to 750 mL·hm-2,which being sprayed in 4 leaves stage of broad leaf weeds.

Likewise, the studies on sensitivity of different weeds in wheat fields may reveal the sensitivity mechanism of wheat weeds and can provide bas.

This paper studied the effect of pyruvic acid assistance factor dosage and reactive condition on the ALS activity, the resistance of the wheat weeds from different regions, effect of differ.