Adding weeds into soil

soybean weeds

seedbed weeds

seed weeds

rice paddy field weeds

rice field weeds

restraint weeds

resistant weeds

removing weeds

quarantine weeds

Polygonaceae weeds

poisonous weeds

perennial weeds

pasture weeds

parasitic weeds

paddy weeds

overgrown with weeds

Other sea weeds

noxious weeds