diff --git a/addons/purchase/report/purchase_report.py b/addons/purchase/report/purchase_report.py
index 40a61efbc19..e5ca57ffef5 100644
--- a/addons/purchase/report/purchase_report.py
+++ b/addons/purchase/report/purchase_report.py
@@ -31,7 +31,7 @@ class purchase_report(osv.osv):
     _description = "Purchases Orders"
     _auto = False
     _columns = {
-        'date': fields.date('Order Date', readonly=True),
+        'date': fields.date('Order Date', readonly=True, help="Date on which this document has been created"),
         'name': fields.char('Year',size=64,required=False, readonly=True),
         'day': fields.char('Day', size=128, readonly=True),
         'state': fields.selection([('draft', 'Request for Quotation'),
@@ -52,11 +52,12 @@ class purchase_report(osv.osv):
         'date_approve':fields.date('Date Approved', readonly=True),
         'expected_date':fields.date('Expected Date', readonly=True),
         'validator' : fields.many2one('res.users', 'Validated By', readonly=True),
+        'product_uom' : fields.many2one('product.uom', 'Product UoM', required=True),
         'company_id':fields.many2one('res.company', 'Company', readonly=True),
         'user_id':fields.many2one('res.users', 'Responsible', readonly=True),
         'delay':fields.float('Days to Validate', digits=(16,2), readonly=True),
         'delay_pass':fields.float('Days to Deliver', digits=(16,2), readonly=True),
-        'quantity': fields.float('# of Products', readonly=True),
+        'quantity': fields.float('# of Qty', readonly=True),
         'price_total': fields.float('Total Price', readonly=True),
         'price_average': fields.float('Average Price', readonly=True, group_operator="avg"),
         'negociation': fields.float('Purchase-Standard Price', readonly=True, group_operator="avg"),
@@ -89,6 +90,7 @@ class purchase_report(osv.osv):
                     s.create_uid as user_id,
                     s.company_id as company_id,
                     l.product_id,
+                    l.product_uom as product_uom,
                     s.location_id as location_id,
                     sum(l.product_qty*u.factor) as quantity,
                     extract(epoch from age(s.date_approve,s.date_order))/(24*60*60)::decimal(16,2) as delay,
@@ -114,6 +116,7 @@ class purchase_report(osv.osv):
                     l.price_unit,
                     s.date_approve,
                     l.date_planned,
+                    l.product_uom,
                     date_trunc('day',s.minimum_planned_date),
                     s.partner_address_id,
                     s.pricelist_id,
diff --git a/addons/purchase/report/purchase_report_view.xml b/addons/purchase/report/purchase_report_view.xml
index bd69e4dfce0..79178048ff6 100644
--- a/addons/purchase/report/purchase_report_view.xml
+++ b/addons/purchase/report/purchase_report_view.xml
@@ -25,6 +25,7 @@
                     <field name="user_id" invisible="1"/>
                     <field name="partner_id" invisible="1"/>
                     <field name="product_id" invisible="1"/>
+                    <field name="product_uom" invisible="1"/>
                     <field name="day" invisible="1"/>
                     <field name="name" invisible="1"/>
                     <field name="month" invisible="1"/>
@@ -34,7 +35,7 @@
                     <field name="state" invisible="1"/>
                     <field name="location_id" invisible="1"/>
                     <field name="nbr" sum="# of Lines"/>
-                    <field name="quantity" sum="# of Products"/>
+                    <field name="quantity" sum="# of Qty"/>
                     <field name="price_average" sum="Average Price"/>
                     <field name="price_total" sum="Total Price"/>
                     <field name="price_standard" sum="Products Value"/>
@@ -52,18 +53,18 @@
         <field name="arch" type="xml">
             <search string="Purchase Orders">
             <group colspan="10" col="12">
-                <filter icon="terp-go-year" string="This Year"
-                                domain="[('date','&lt;=', time.strftime('%%Y-%%m-%%d')),('date','&gt;',(datetime.date.today()-datetime.timedelta(days=365)).strftime('%%Y-%%m-%%d'))]"
-                                help="Tasks performed in this year"/>
-                <filter icon="terp-go-month" string="This Month"
-                        name="month"
-                        domain="[('date','&lt;=', time.strftime('%%Y-%%m-%%d')), ('date','&gt;',(datetime.date.today()-datetime.timedelta(days=30)).strftime('%%Y-%%m-%%d'))]"
-                        help="Tasks performed in this month"/>
-                <filter icon="terp-go-week"
-                        string="7 Days"
-                        separator="1"
-                        domain="[('date','&lt;=', time.strftime('%%Y-%%m-%%d')), ('date','&gt;',(datetime.date.today()-datetime.timedelta(days=7)).strftime('%%Y-%%m-%%d'))]"
-                        help="Tasks during last 7 days"/>
+                <filter icon="terp-go-year" string="  Year  "
+                domain="[('date','&lt;=', time.strftime('%%Y-%%m-%%d')),('date','&gt;=',time.strftime('%%Y-01-01'))]"
+                help="Order in current year"/>
+                <filter icon="terp-go-month" string="   Month   "
+                name="month"
+                domain="[('date','&lt;=', time.strftime('%%Y-%%m-%%d')),('date','&gt;=',time.strftime('%%Y-%%m-01'))]"
+                help="Order in  current month"/>
+                <filter icon="terp-go-month"
+                 string="    Month-1    "
+                 separator="1"
+                 domain="[('date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                 help="Order in last month"/>
                 <separator orientation="vertical"/>
                 <filter icon="terp-document-new"
                         string="Quotations"
@@ -80,12 +81,12 @@
                 <newline/>
                 <group expand="1" string="Group By..." colspan="10" col="12">
                     <filter string="Supplier" name="group_partner_id" icon="terp-personal" context="{'group_by':'partner_id'}"/>
-                    <filter string="Product" name="group_product_id" icon="terp-accessories-archiver" context="{'group_by':'product_id'}"/>
-                    <separator orientation="vertical"/>
                     <filter string="Responsible" name="Responsible" icon="terp-personal" context="{'group_by':'user_id'}"/>
                     <filter string="Validated by" icon="terp-personal" context="{'group_by':'validator'}"/>
-                    <separator orientation="vertical"/>
-                    <filter string="Warehouse" icon="terp-go-home" context="{'group_by':'warehouse_id'}"/>
+ 					<separator orientation="vertical"/>
+                    <filter string="Product" name="group_product_id" icon="terp-accessories-archiver" context="{'group_by':'product_id'}"/>
+                    <filter string="Product UOM" name="group_product_uom" icon="terp-accessories-archiver" context="{'group_by':'product_uom'}"/>
+                    <filter string="Warehouse" icon="terp-go-home" context="{'group_by':'warehouse_id'}" groups="base.group_extended"/>
                     <filter string="Destination" icon="terp-gtk-jump-to-ltr" context="{'group_by':'location_id'}"/>
                     <separator orientation="vertical"/>
                     <filter string="State" icon="terp-stock_effects-object-colorize" context="{'group_by':'state'}"/>
@@ -106,7 +107,7 @@
                     <separator orientation="vertical"/>
                     <field name="company_id" groups="base.group_multi_company"/>
                     <newline/>
-                    <field name="date"/>
+                    <field name="date" />
                     <field name="date_approve"/>
                     <field name="expected_date"/>
                 </group>