suite/product_catch_weight/views/stock_views.xml

<?xml version="1.0" encoding="UTF-8" ?>
<odoo>
    <record id="view_production_lot_form_inherit" model="ir.ui.view">
        <field name="name">stock.production.lot.form.inherit</field>
        <field name="model">stock.production.lot</field>
        <field name="inherit_id" ref="stock.view_production_lot_form" />
        <field name="arch" type="xml">
            <xpath expr="//field[@name='product_id']" position="after">
                <field name="catch_weight_ratio"/>
            </xpath>
        </field>
    </record>

    <record id="view_move_line_form_inherit" model="ir.ui.view">
        <field name="name">stock.move.line.form.inherit</field>
        <field name="model">stock.move.line</field>
        <field name="inherit_id" ref="stock.view_move_line_form" />
        <field name="arch" type="xml">
            <xpath expr="//field[@name='lot_name']" position="after">
                <field name="lot_catch_weight_ratio" readonly="1"/>
            </xpath>
        </field>
    </record>
    <record id="view_stock_move_line_operation_tree_inherit" model="ir.ui.view">
        <field name="name">stock.move.line.operations.tree.inherit</field>
        <field name="model">stock.move.line</field>
        <field name="inherit_id" ref="stock.view_stock_move_line_operation_tree" />
        <field name="arch" type="xml">
            <xpath expr="//field[@name='lot_name']" position="after">
                <field name="lot_catch_weight_ratio" invisible="not context.get('show_lots_text')"/>
                <field name="lot_catch_weight_ratio_related" invisible="not context.get('show_lots_m2o')"/>
            </xpath>
        </field>
    </record>
</odoo>