Radishes and carrots stunted, everything else is great

Beans, squash, tomatoes, peppers, cucumbers are great... the radishes and carrots grew nice big tops, but nothing on the bottom. What could cause it?
--
Mac Cool

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.