You PM This image to me
<img src="http://dl.dropbox.com/u/37148455/rrightsdgsdg.jpg" border="0" />
Image 1:
You asked But Rate is just 1
That is bec it recreate the particle with oneshot enabe
You don't need to use that met. But I use it
Image 2:
-Left arrow down
-->Set particle Rate 3
-->Create Particle at point of Object
That should stable every thing out.
If you want less grass:
-Right arrow down
-Every (your number(1000))MS
-->Create Particle at point of Object
-Left arrow down
-Every (your number(1000))MS
-->Create Particle at point of Object