I would suspect that you'll have to feed them with a liquid that will work through the fabric, or use a foliar spray.

Sue

Its not too late although you should have worked a fertilizer blend into the soil prior to planting. You'll get enough phosphorus and potassium for the season in most cases that way. Nitrogen is more mobile and so you could use a soluble form like calcium nitrate driped or sprinkled onto the fabric and it should reach the plant root zone fairly quickly. Some peoplie use drip tape under the barrier (usually black plastic) and then they can fertigate with water soluble nutrients with the irrigation water.

I concur with the others that you should have incorporated all the organic matter/fertilizer into the soil before you put the weed fabric in place as it complicates things.

You can, however, still use a water soluble fertilizer with your irrigation water.

Thanks for the replies.

Yes, the fabric I used is a geotextile fabric which is perforated and does let water in to the roots. The soil was prepared with some 13-13-13 added prior to tilling. Additionally, I had planned to feed by foliar application. I was wondering if anyone had tried to place a dry fertilizer on top of the fabric to be watered in with the irrigation system, and if there would be any drawbacks to doing so.

Mike