elect class="form-control" id="ext_field" name="ext_field">
                                    <option value="1">土肥</option>
                                    <option value="2">植保</option>
                                    <option value="3">育种</option>
                                </select>
                            </div>
                        </div>
                        <div class="form-group">
                            <label class="col-md-3 control-label" for="logo">上传�