why invoke the rate module can't work?

i have installed the views and rate module, in views-view-fields.tpl.php, i put this code in

$node=node_load($row->nid)   //$row->nid is the node's id
 echo $node->content['rate_poll']['#value'];
echo $node->title;

there is no any output of echo $node->content['rate_poll']['#value']; echo $node->title is ok. but when i echo $node->content['rate_poll']['#value']; in the node page, it can output the result. why? and how to make it can outputted in the views-view-fields.tpl.php. thank you.