Trying to render multiple hair particle systems shows only the first one I'm kinda new on blender so sorry if this is an obvious question, I have this basic terrain, which has a patch of grass as a particle system, in order to add more randomness to it, I decided to create a few different variations for the grass (grass 1, grass 2, grass 3) objects.

So basically only the first particle system is showing up, the other 2 are there, but I had no luck making them appear on the viewport or render unless I change the object emitter from the first system.




Also, it looks kinda blurry in the final render not sure why.
Thank you in advance for all your help!

I'll be adding the .blend file.
Your 2nd and 3rd hair particles are controlled by vertex groups "Group.001" and "Group.002" which don't have any weight applied. Just weight paint them where you want the grass to spread.

Also you should invert the normals of the plane (now they are facing downwards, select all then Shift N in edit mode, choose "inside" option), and put the origin of the grass objects at the bottom of the meshes, so that the leaves grow from their base and not from the middle.