1651 what does this mean

we used weedkiller using instructions on container..so we thought !!!..nothing has happened. There is one bit we do not understand.....but cannot find what it means.

infestanti graminacee non accestite : 3-4 l/ha
infestanti graminacee gia accestite : dicotiledoni gia sviluppate (15-20cms di altezza) : 6-8 l/ha

what does l/ha mean ?

it also says before this : si distribuisce in 200-400 litri di acqua per ettaro ?
There is a litre in the conatiner.

Any help greatly appreciated .

Category
Gardening & Agriculture

I think this means that you have to dilute the product in 200/400 litres of water per hectare (10,000M2). If you are trying to get rid of an infestation of couch grass which is not well developed you use 3/4 litres of the product per hectare. If the couch grass or other weed is well developed (15/20 cms high) then you you use 6/8 litres of the product per hectare. These quantities will need to diluted in water.

I hope this helps!

Serge