Help fixing my lawn

Private_winkle

Good morning,
I am looking for some advice on how to get the best out of my lawn. New turf was laid last year wend certain sections of the lawn appear to grow much better and greener than others. 
I scattered evergreen 4 in 1 around a month ago and although some sections have gotten greener there still remains sections that are slightly bare and/or yellow. 

A few sections are completely dead due to the dog urinating on it. 

Any advice on how to get the best out of the lawn would be appreciated. 

Dovefromabove

It's going to need a fair bit of attention to get it up to Wembley standard ... and the dog's attentions won't help ... but hopefully some of the lawn experts will see this if I bump it onto the front page again ... 

Dovefromabove

Bump

The_herpetologist

Yes, it looks like very heavy soil to me. To get the best lawn, think about what grass likes: It loves aerated soil, so I add tonnes of perlite to my heavy yorkshire clay soil - the more perlite (or, better still vermiculite) you can add, the better. Grass loves aeration, so get a garden fork and put it deep into your lawn and lift the clod up a little by gently pulling down on the fork handle until it raises the ground slightly (this is what those people with gorgeous lawns spend all their time doing, and what they are achieving is air pockets under the soil that feed and aerate the grass roots). Grass gives up if it's roots are starved of oxygen, so compacted or heavy soils need our help to aerate. Then give it a jolly good feed with a decent lawn feed product and you should see a difference. If you want a perfect lawn, go the whole hog and rotavate in the following mix which grass will just love:

For aeration - perlite or vermiculite
For texture, aeration and food - compost or leaf litter

And the perfect proportions of each will depend on the state of your soil, but 30/70 should be fine. Then re-seed with some 'smart' grass seed which contains many different strains and varieties of grass such that the strain that likes / tolerates your soil conditions best will stay and thrive. Rye grass is known to be particularly tolerant to different soil types but is not the most lushious looking grass.

bradleywood32

How would you go about adding perlite or vermiculite to you soil?

Nanny Beach

Yes, get rid of the dog, and the kids I see a goal post, then you may get Wimbledon!!!

Private_winkle

Doesn't quite need to be Wimbledon but its odd some areas are growing much better than others. 
Last year I lifted the old lawn, rotavated it and added tonnes of new top soil. I'm keen not to need to rotavate it again if I can avoid it. 

I'll aerate it but as someone else asked how do i introduce perlite without rotavating?