[SalesForce] Display formula field in visualforce page

I have apex column to display the formula field on visualforce page.I am rendering the page on submit of the record and then displaying the newly created record.But issue is (Fiscal_Year_Start_Date__c)formula field value is displaying blank in the results section.Whereas if i go to record detail page I see the value but not on the vf page.

public class SerndingEventController {


 public SerndingEventController(){

 seriesId = ApexPages.currentPage().getParameters().get('id');
 fevent = new Fund_Event__c();
 showFields = false;
}


   public PageReference Save(){
   newfevenlist = new list<Fund_Event__c>();
   system.debug('.....'+fevent);
   fevent.Series__c = seriesId;
    showFields = true;

    fevent.RecordTypeId= rectype;
    newfevenlist.add(fevent);
    insert newfevenlist;

 return null;
}

 public PageReference Cancel(){
  return null;
   }

  }

Controller:

<apex:page Controller="SerndingEventController">
<apex:form >
<apex:pageBlock title="New Funding Event" mode="edit">

  <apex:pageblockButtons location="top">
<apex:commandButton value="Submit" action="{!save}" reRender="result,fields">
</apex:commandButton>
<apex:commandButton value="Cancel" action="{!cancel}" immediate="true">
</apex:commandButton>
</apex:pageblockButtons>
 <apex:pageBlockSection id="fields">
 <apex:pageBlockSectionItem >
     <apex:outputLabel value="Record Types" /> 
                <apex:selectList value="{!RecordType}" size="1">
                    <apex:selectOptions value="{!rectypes}" />
                </apex:selectList>           
  </apex:pageBlockSectionItem>

  <apex:inputField value="{!fevent.Project__c}" rendered="{!showFields==false}"/>
  <apex:inputField value="{!fevent.Status__c}" rendered="{!showFields==false}"/>
  <apex:inputField value="{!fevent.Fiscal_Year__c}" rendered="{!showFields==false}"/>
  <apex:inputField value="{!fevent.Number_of_years_of_the_Funding_Event__c}" rendered="{!showFields==false}"/>
  <apex:inputField value="{!fevent.Amount__c}" rendered="{!showFields==false}"/>
  <apex:inputField value="{!fevent.Budget_Expenses__c}" rendered="{!showFields==false}"/>
  </apex:pageBlockSection>
</apex:pageBlock>
<apex:pageBlock id="result" >
     <apex:pageBlockTable value="{!newfevenlist}" var="fundevent">

    <apex:commandLink action="{!editFundingEvents}" rerender="result">Edit<apex:param name="editid" value="{!fundevent.id}"/></apex:commandLink>
     </apex:column>
     <apex:column value="{!fundevent.Grant__c}" rendered="{!fundevent.Id != editEvent.Id}"/>
     <apex:column value="{!fundevent.Grant__c}" rendered="{!fundevent.Id != editEvent.Id}"/>  

     <apex:column value="{!fundevent.Amt__c}" rendered="{!fundevent.Id != editEvent.Id}"/>
     <apex:column value="{!fundevent.Budget_Expenses__c}" rendered="{!fundevent.Id != editEvent.Id}"/>
     <apex:column value="{!fundevent.Fiscal_Year_Start_Date__c}"/>           
  </apex:pageBlockTable>       
  </apex:pageBlock>