How to chemically control weeds before and after sowing and during the growing period of Bupleurum?

BupleurumChemical weed control before and after sowing and during the growing period

1. Chemical weed control before land preparation. For wasteland, secondary wasteland or fallow land with many perennial weeds, 10-15 days before land preparation or during the period of vigorous weed growth, spray 1000 ml of 10% systemic, conductive, non-selective herbicide "Glyphosate" aqueous solution per mu ("Roundup" and "Feida" are also products of the same type). This can kill most annual and perennial weeds and also has a root-rotting effect. For cultivated land with many young, tender weeds, 2-3 days before land preparation, spray 250 ml of 20% contact-type, non-selective herbicide "Gramoxone" per mu. This can kill all green weeds on the soil surface and reduce weed infestation during the seedling stage.

2. Chemical weed control after sowing and before emergence. From after sowing to before emergence of Bupleurum, "Glyphosate" or "Gramoxone" may also be sprayed depending on the weed species to kill weeds that emerge before the seedlings, reducing weed infestation during the seedling stage.

3. Chemical weed control during the growing period. After Bupleurum emerges, for broadleaf weeds of the same type as Bupleurum, currently only manual pulling can be used. However, for grass-family weeds, at the 3-5 leaf stage of the weeds, use 50 ml of 12.5% "Gallant" emulsifiable concentrate per mu, or 45 ml of 15% "Fluazifop-p-butyl" emulsifiable concentrate, or 50 ml of 10% "Quizalofop-p-ethyl" emulsifiable concentrate, or 100 ml of 20% "Sethoxydim" emulsifiable concentrate, dilute with 30 kg of water, and evenly spray onto the weed stems and leaves with a manual sprayer. This can kill various grass-family weeds. Large weeds have strong resistance and still need to be pulled by hand.