Lawn weed and feed. How much is 35g?

[Neil WyattModerator @neilwyatt]

Posted by Michael Gilligan on 23/04/2020 08:46:13:

 

[quote from various sources]
By hand , apply a max individual dose of 35g per square metre (1oz per square yard)

 

May be worth noting the max ^^^

MichaelG

In a nitrate sensitive zone there's maximum average application rate of 300 kilos per hectare (30 grams per square meter) of nitrogen per year that you can apply to grass.

Grass fertilisers seem to be typically 10% N – so 3.5g in a 35g dose, and if you are dedicated you would use it every six weeks during the growing season say 4 to 6 applications. 30g at 3.5g a time would be 8.5 applications i.e. every six weeks for a year.

So I would guess that setting a max is about making sure they are recommending an amount that comes in under the NVZ limit if used by some mowing addict all year round.

IMHO this is almost certainly the origin of the number rather than needs of the lawn which can only really be judged by a combination of soil testing, experience and the sort of lawn growth you want to see…

 

(bear in mind that these fertilisers are often the same ones as used in places like sports pitches, golf courses etc where the rules will be enforced…)

Neil

 

Edited By Neil Wyatt on 23/04/2020 21:03:13

[Johnboy25Participant @johnboy25]

35grams = Approx.a level desert spoon full. ✔️-

Edited By Johnboy25 on 26/04/2020 23:55:10

[Simon Robinson 4Participant @simonrobinson4]

Posted by Johnboy25 on 26/04/2020 23:53:59:

35grams = Approx.a level desert spoon full. ✔️-

Edited By Johnboy25 on 26/04/2020 23:55:10

Thanks that seems about right

[Gerard O’TooleParticipant @gerardotoole60348]

I think that will be too little

Below is 35grms of lawn food in a 60ml container and it takes up about 2/3rds so 40ml. . A table spoon is about 15 – 20 ml.and a desert spoon would be smaller.

[roy entwistleParticipant @royentwistle24699]

Gerard You appear to be weighing the cup as well

[Gerard O’TooleParticipant @gerardotoole60348]

Posted by roy entwistle on 27/04/2020 14:55:21:

Gerard You appear to be weighing the cup as well

Why would you think I would do that?

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