[scroll a single line lcd arduino]

If you want to help me, i have some questions. 

I want to scroll  just a single line of a 20x4 display. on this line i want to write a string , then a value and at least another string. The last string will be change by a condition like this

 

 

if (percent1 > 50)

{  

LCD.setCursor(0,1);

  LCD.print("Moisture S1: ");

  LCD.print(percent1); 

  LCD.print("%"); 

  LCD.print(" ");

LCD.print(" Irrigation sistem OFF");

LCD.print(" ");

}

else

{

 LCD.setCursor(0, 1);

 LCD.print("Moisture S1: ");

  LCD.print(percent1); 

  LCD.print("%"); 

 LCD.print("Irrigaion sistem ON");

 LCD.print(" ");

 

 

"Moisture S1: " / percent1 / "%"/  " Irrigaion sistem OFF" 

or 

"Moisture S1: " / percent1 / "%"/  " Irrigaion sistem ON" 

 

Thanks a lot!