diff --git a/__init__.py b/__init__.py
index 1860311..9856290 100644
--- a/__init__.py
+++ b/__init__.py
@@ -32,6 +32,8 @@ def register():
         product.ProductCrop,
         product.ProductDO,
         product.ProductEcological,
+        product.ProductPriceListType,
+        product.PriceList,
         product.ProductVariety,
         product.Template,
         weighing.WeighingCenter,
diff --git a/plot.py b/plot.py
index 0ad494f..6fecf6b 100644
--- a/plot.py
+++ b/plot.py
@@ -4,6 +4,7 @@ from trytond.model import fields, ModelSQL, ModelView
 from trytond.pool import Pool
 from trytond.i18n import gettext
 from trytond.exceptions import UserError
+from trytond.transaction import Transaction
 
 class Enclosure(ModelSQL, ModelView):
     "Enclosure"
@@ -62,11 +63,13 @@ class Plantation(ModelSQL, ModelView):
     "Plantation"
     __name__ = 'agronomics.plantation'
 
-    code = fields.Char('Code', required=True)
-    party = fields.Many2One('party.party', 'Party', required=True)
+    code = fields.Char("Code", required=True)
+    party = fields.Many2One('party.party', "Party", required=True)
     enclosures = fields.One2Many('agronomics.enclosure', 'plantation',
-        'Enclosure')
-    parcels = fields.One2Many('agronomics.parcel', 'plantation', 'Parcel')
+        "Enclosure")
+    parcels = fields.One2Many('agronomics.parcel', 'plantation', "Parcel")
+    plantation_year = fields.Integer("Plantation Year")
+    plantation_owner = fields.Many2One('party.party', "Plantation Owner")
 
     def get_rec_name(self, name):
         if self.code:
@@ -121,20 +124,6 @@ class Parcel(ModelSQL, ModelView):
         if self.plantation and self.crop:
             return self.plantation.code + ' - ' + self.crop.rec_name
 
-    @classmethod
-    def validate(cls, records):
-        super().validate(records)
-        cls.check_percent_beneficiaries(records)
-
-    @classmethod
-    def check_percent_beneficiaries(cls, records):
-        for record in records:
-            percent = sum([x.percent for x in record.beneficiaries])
-            if record.beneficiaries and abs(100 - round(percent, 2)) > 0.0001:
-                raise UserError(gettext('agronomics.msg_beneficiaris_percent',
-                    crop=record.crop.rec_name,
-                    plantation=record.plantation.rec_name))
-
     def get_all_do(self, name):
         return ",".join([x.name for x in self.denomination_origin])
 
@@ -168,7 +157,21 @@ class Beneficiaries(ModelSQL, ModelView):
     "Beneficiaries"
     __name__ = 'agronomics.beneficiary'
 
-    party = fields.Many2One('party.party', 'Beneficiary', required=True)
-    percent = fields.Float('Percent', digits=(16, 2), required=True)
-    parcel = fields.Many2One('agronomics.parcel', 'Parcel')
-    weighing = fields.Many2One('agronomics.weighing', 'Weighing')
+    party = fields.Many2One('party.party', "Beneficiary", required=True)
+    parcel = fields.Many2One('agronomics.parcel', "Parcel")
+    weighing = fields.Many2One('agronomics.weighing', "Weighing")
+    product_price_list_type = fields.Many2One('product.price_list.type',
+        "Product Price List Type")
+
+    @classmethod
+    def __register__(cls, module_name):
+        cursor = Transaction().connection.cursor()
+        table = cls.__table_handler__(module_name)
+        sql_table = cls.__table__()
+
+        # Migration from #047773
+        if table.column_exist('percent'):
+            table.not_null_action('percent', 'remove')
+            table.drop_column('percent')
+
+        super(Beneficiaries, cls).__register__(module_name)
diff --git a/product.py b/product.py
index 8a6df98..058cd65 100644
--- a/product.py
+++ b/product.py
@@ -195,3 +195,15 @@ class ProductEcological(ModelSQL):
         ondelete='CASCADE', select=True, required=True)
     ecological = fields.Many2One('agronomics.ecological', 'Ecological',
         ondelete='CASCADE', select=True, required=True)
+
+
+class ProductPriceListType(ModelSQL, ModelView):
+    "Product Price List Type"
+    __name__ = 'product.price_list.type'
+    name = fields.Char("Name", required=True)
+
+
+class PriceList(metaclass=PoolMeta):
+    __name__ = 'product.price_list'
+    product_price_list_type = fields.Many2One('product.price_list.type',
+        "Product Price List Type")
diff --git a/product.xml b/product.xml
index 5603e0d..9623f4a 100644
--- a/product.xml
+++ b/product.xml
@@ -224,5 +224,41 @@
             <field name="perm_create" eval="True"/>
             <field name="perm_delete" eval="True"/>
         </record>
+
+        <!-- product.price_list.price -->
+        <record model="ir.ui.view" id="product_price_list_type_view_form">
+            <field name="model">product.price_list.type</field>
+            <field name="type">form</field>
+            <field name="name">product_price_list_type_form</field>
+        </record>
+        <record model="ir.ui.view" id="product_price_list_type_view_tree">
+            <field name="model">product.price_list.type</field>
+            <field name="type">tree</field>
+            <field name="name">product_price_list_type_tree</field>
+        </record>
+
+        <record model="ir.action.act_window" id="act_product_price_list_type_form">
+            <field name="name">Product Price List Type</field>
+            <field name="res_model">product.price_list.type</field>
+        </record>
+        <record model="ir.action.act_window.view" id="act_product_price_list_type_form_view1">
+            <field name="sequence" eval="10"/>
+            <field name="view" ref="product_price_list_type_view_tree"/>
+            <field name="act_window" ref="act_product_price_list_type_form"/>
+        </record>
+        <record model="ir.action.act_window.view" id="act_product_price_list_type_form_view2">
+            <field name="sequence" eval="20"/>
+            <field name="view" ref="product_price_list_type_view_form"/>
+            <field name="act_window" ref="act_product_price_list_type_form"/>
+        </record>
+        <menuitem parent="product_price_list.menu_price_list" action="act_product_price_list_type_form"
+            id="menu_product_price_list_type_form"/>
+
+        <!-- product.price_list -->
+        <record model="ir.ui.view" id="price_list_view_form">
+            <field name="model">product.price_list</field>
+            <field name="inherit" ref="product_price_list.price_list_view_form"/>
+            <field name="name">price_list_form</field>
+        </record>
     </data>
 </tryton>
diff --git a/tryton.cfg b/tryton.cfg
index 31f6ff4..4c715c0 100644
--- a/tryton.cfg
+++ b/tryton.cfg
@@ -6,6 +6,7 @@ depends:
     party
     product_classification
     product_classification_taxonomic
+    product_price_list
     product_template_form_quantity
     quality_control
     purchase_contract
diff --git a/view/beneficiary_form.xml b/view/beneficiary_form.xml
index d87b709..b55cb3b 100644
--- a/view/beneficiary_form.xml
+++ b/view/beneficiary_form.xml
@@ -1,8 +1,8 @@
 <form>
   <label name="party"/>
   <field name="party"/>
-  <label name="percent"/>
-  <field name="percent"/>
+  <label name="product_price_list_type"/>
+  <field name="product_price_list_type"/>
   <label name="parcel"/>
   <field name="parcel"/>
 </form>
diff --git a/view/beneficiary_list.xml b/view/beneficiary_list.xml
index a6c751c..741021f 100644
--- a/view/beneficiary_list.xml
+++ b/view/beneficiary_list.xml
@@ -1,4 +1,4 @@
 <tree editable="1">
   <field name="party"/>
-  <field name="percent"/>
+  <field name="product_price_list_type"/>
 </tree>
diff --git a/view/plantation_form.xml b/view/plantation_form.xml
index db95641..2ba4c9e 100644
--- a/view/plantation_form.xml
+++ b/view/plantation_form.xml
@@ -3,6 +3,10 @@
   <field name="code"/>
   <label name="party"/>
   <field name="party"/>
+  <label name="plantation_year"/>
+  <field name="plantation_year"/>
+  <label name="plantation_owner"/>
+  <field name="plantation_owner"/>
   <notebook>
     <page name="parcels">
       <field name="parcels" widget="many2many"/>
diff --git a/view/plantation_list.xml b/view/plantation_list.xml
index f694d23..c844456 100644
--- a/view/plantation_list.xml
+++ b/view/plantation_list.xml
@@ -1,4 +1,6 @@
 <tree>
   <field name="code"/>
   <field name="party"/>
+  <field name="plantation_year" tree_invisible="1"/>
+  <field name="plantation_owner" tree_invisible="1"/>
 </tree>
diff --git a/view/price_list_form.xml b/view/price_list_form.xml
new file mode 100644
index 0000000..3b32f1f
--- /dev/null
+++ b/view/price_list_form.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<data>
+    <xpath expr="//field[@name='unit']" position="after">
+        <label name="product_price_list_type"/>
+        <field name="product_price_list_type"/>
+    </xpath>
+</data>
diff --git a/view/product_price_list_type_form.xml b/view/product_price_list_type_form.xml
new file mode 100644
index 0000000..5037817
--- /dev/null
+++ b/view/product_price_list_type_form.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<form>
+    <label name="name"/>
+    <field name="name"/>
+</form>
\ No newline at end of file
diff --git a/view/product_price_list_type_tree.xml b/view/product_price_list_type_tree.xml
new file mode 100644
index 0000000..13f295a
--- /dev/null
+++ b/view/product_price_list_type_tree.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tree>
+    <field name="name"/>
+</tree>
\ No newline at end of file
diff --git a/weighing.py b/weighing.py
index 672bc18..27691cc 100644
--- a/weighing.py
+++ b/weighing.py
@@ -262,22 +262,6 @@ class Weighing(Workflow, ModelSQL, ModelView):
     def on_change_with_netweight(self):
         return (self.weight or 0) - (self.tara or 0)
 
-    @classmethod
-    def validate(cls, records):
-        super().validate(records)
-        cls.check_percent_beneficiaries(records)
-
-    @classmethod
-    def check_percent_beneficiaries(cls, records):
-        for record in records:
-            if record.state == 'draft':
-                continue
-            percent = sum([x.percent for x in record.beneficiaries])
-            if record.beneficiaries and abs(100 - round(percent, 2)) > 0.0001:
-                raise UserError(gettext('agronomics.msg_beneficiaris_percent',
-                    crop=record.crop.rec_name,
-                    plantation=record.plantations[0].plantation.rec_name))
-
     @classmethod
     @Workflow.transition('in_analysis')
     def analysis(cls, weighings):
@@ -426,7 +410,7 @@ class Weighing(Workflow, ModelSQL, ModelView):
                 b = Beneficiary()
                 b.party = ben.party
                 b.weighing = weighing
-                b.percent = ben.percent
+                b.product_price_list_type = ben.product_price_list_type
                 to_save.append(b)
 
         if to_save: