<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<form class="form-horizontal">
<fieldset>
<legend>مشخصات زمین زراعی-کاشت</legend>
<div class="form-group">
<label class="col-md-4 control-label" for="kesht">سطح زیر کشت</label>
<div class="col-md-4">
<div class="input-group">
<input id="Field characteristics" name="kesht" class="form-control" placeholder="" type="text">
<span class="input-group-addon">هکتار</span>
</div>
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="ravesh">روش کاشت</label>
<div class="col-md-4">
<div class="radio">
<label for="ravesh1">
<input type="radio" name="marsom" id="Planting method-0" value="1" checked="checked">
کشت مرسوم
</label>
</div>
<div class="radio">
<label for="ravesh2">
<input type="radio" name="mostaghim" id="Planting method-1" value="2">
کشت مستقیم
</label>
