Smooth Bumpy Ground

[Nutronic]

I have tried to follow the tutorial posted here and thought I had done quite well.

However, the ground is lumpy. What is causing this and how can I remove it or hide it?

Can I add grass on it or something?

Attached is project file and screenshot.

You maybe getting annoyed with my Noobish posts but I am more annoyed than you are.

[Dune]

It's good practise to hover your camera close to an area that's bothering you and one by one check the nodes for their settings. You can change a setting, say size of displacement or scales, and see what happens.

[Nutronic]

Maybe it would be good practice but unless someone tells me what causes this I wouldnt know how to fix it 

[Dune]

If you do as I siad, and disable each node one by one, it takes 10 seconds to find out the culprit is in your grass surface layers. Select a node, hit 'd' to disable or enable.

[Nutronic]

Select a node, hit 'd' to disable or enable.

Ok thanks