diff --git a/user_guide/doc/source/namelists/jules_irrig.nml.rst b/user_guide/doc/source/namelists/jules_irrig.nml.rst
index 2f367f6..a172a6c 100644
--- a/user_guide/doc/source/namelists/jules_irrig.nml.rst
+++ b/user_guide/doc/source/namelists/jules_irrig.nml.rst
@@ -10,7 +10,7 @@ This file sets the irrigation options. It contains one namelist called :nml:lst:
 
 .. nml:namelist:: JULES_IRRIG
 
-This namelist specifies the different options available for setting up the irrigation.
+This namelist specifies the different options available for setting up the fraction-based irrigation scheme.
 
 .. note::
 
@@ -26,7 +26,11 @@ This namelist specifies the different options available for setting up the irrig
    :type: logical
    :default: F
 
-   Switch controlling the implementation of irrigation demand code.
+   Switch controlling the implementation of fraction-based irrigation demand code.
+   This scheme can only be used if :nml:mem:`JULES_PFTPARM::irrig_pft_io` = npft*0 and :nml:mem:`JULES_NVEGPARM::irrig_nvg_io` = nnvg*0
+
+   For setting up the tile-based irrigation scheme please see :nml:mem:`JULES_PFTPARM::irrig_pft_io` and :nml:mem:`JULES_NVEGPARM::irrig_nvg_io`.
+   
 
    TRUE
       Tiles are irrigated.
diff --git a/user_guide/doc/source/namelists/nveg_params.nml.rst b/user_guide/doc/source/namelists/nveg_params.nml.rst
index cd0a1b6..a399781 100644
--- a/user_guide/doc/source/namelists/nveg_params.nml.rst
+++ b/user_guide/doc/source/namelists/nveg_params.nml.rst
@@ -84,6 +84,16 @@ HCTN30 refers to Hadley Centre technical note 30, available from `the Met Office
 
    See HCTN30 p14 for full details.
 
+.. nml:member:: irrig_nvg_io
+
+   :type: integer(nnvg)
+   :default: nnvg*0
+
+   Switch for the tile-based irrigaton scheme only. 
+   Value indicates whether the non-vegetated surface tile is irrigated or not, where 0 = Not irrigated and 1 = Irrigated. 
+   Can only be set to 1 if :nml:mem:`JULES_IRRIG::l_irrig_dmd` = F.
+    
+   For the fraction-based irrigation demand code please set up your namelists using the instructions in the :nml:lst:`JULES_IRRIG` namelist.
 
 .. nml:member:: z0_nvg_io
 
diff --git a/user_guide/doc/source/namelists/pft_params.nml.rst b/user_guide/doc/source/namelists/pft_params.nml.rst
index 0c18aa8..fcfe5f9 100644
--- a/user_guide/doc/source/namelists/pft_params.nml.rst
+++ b/user_guide/doc/source/namelists/pft_params.nml.rst
@@ -389,6 +389,17 @@ ease the direct links to these documents are:
 
    See HCTN30 p14 for full details.
 
+.. nml:member:: irrig_pft_io
+
+   :type: integer(npft)
+   :default: npft*0
+
+   Switch for the tile-based irrigaton scheme only. 
+   Value indicates whether the vegetated surface tile is irrigated or not, where 0 = Not irrigated and 1 = Irrigated. 
+   Can only be set to 1 if :nml:mem:`JULES_IRRIG::l_irrig_dmd` = F.
+    
+   For the fraction-based irrigation demand code please set up your namelists using the instructions in the :nml:lst:`JULES_IRRIG` namelist.
+
 .. nml:member:: gsoil_f_io
 
    :type: real(npft)