stock_reord_rule_view.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>

        <record id="product_normal_form_view_procurement_by_days" model="ir.ui.view">
            <field name="name">product.normal.form_procurement_by_days</field>
            <field name="model">product.product</field>
            <field name="inherit_id" ref="product.product_normal_form_view"/>
            <field name="arch" type="xml">
                <group name="procurement" position="after">
                    <group name="Stock Procurement By Days">
                    <field name="days_warehouse"/>
                    <field name="days_stats"/>
                    <field name="forecast_gap"/>
                    </group>
                </group>
            </field>
        </record>

    </data>
</openerp>