Dropdown are not working in Django , HTML

I am trying to display data from database throw drop-down list and Use filter query to filter data and display if i tried to select value of html and select but slot is not create. Debugging form and i see error. If i select anything but drop-down do't selected here is error

Here is my code: slot/views.py

def slot_create(request):  
    form = SlotForm(request.POST)  
    station = Station.objects.filter(user_id=request.user)
    if form.is_valid():  
        slot = form.save(commit=False)  
        slot.user = request.user  
        messages.success(request, 'Your Slot is add successfully')
        return redirect('view_slot')  

    return render(request, 'add_slot.html', {
        'form': form,
        'station': station

here is my add_slot.html

<form method="post" novalidate>
 {% csrf_token %}
    <div class="form-row">
        <div class="form-group col-md-12 mb-0">
            {{ form.slot_name|as_crispy_field }}
        <div class="form-group col-md-12 mb-0">
            {{ form.per_unit_price|as_crispy_field }}
        <div class="form-group col-md-6 mb-0">
            {{ form.current_status|as_crispy_field }}
         {% comment %} <div class="form-group col-md-6 mb-0">
            {{ form.station|as_crispy_field }}
         </div> {% endcomment %}
        <div class="form-group col-md-6 mb-0">
            <label for="station" class="block font-semibold text-sm mb-1"> Choose Station </label>
            <select name="station_name" id = "station">
            {% for station in station %}

                <option value="{{station}}"> {{station}} </option>
            {% endfor %}  
        <button type="submit" class="w-full rounded-full bg-red-gradient p-3 text-white font-bold hover:ring">
            Add Slot
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