Hi welcome to the site.
EYMP 1 barriers to parent partnerships include time, home-link books, emails, phone calls, parent's sessions at arranged times, confidence, language and literacy needs, disability and culture.
For example if a parent works full time it will not be easy for them to visit the setting, similarly if the setting doesn't operate an 'open door' policy parents may feel less welcome or inclined to visit.
Page 222 of this CYPW level 3 handbook looks at this criteria.
http://www.silkysteps.com/forum/showthread.php?t=17067
Open door policy means page 238 quote:
Effect for parents: feeling welcome, chance to experience what is happening in the nursery and to talk to staff, talking daily about their child.
Barriers to working well with parents: parents are in a hurry when dropping off or picking up, staff are split between talking to parents and caring for the children, lack of private space for discussion, parents staying longer than is beneficial for the child, too many parents in the room at the same time.
How barriers might be overcome: find time to have a few words with each parent when they arrive, make home-link books for parents and staff to share information, offer contact by phone or email if privacy is difficult, establish a time each day for parents to leave.
Hth