Clark & Sons Organics, a farm near Portal, hosted a field day Friday with guests from the Coastal Organics Growers Association and local students.Al and Debbie Clark, along with sons Rene and John, welcomed four busloads of students and a host of other guests Friday morning for a tour of the farm and a snack of grilled eggplant and sausage.Clark and several others, including Donn Cooper, the farm services coordinator with Georgia Organics, spoke about issues in the organic farming world.“There is a really strong focus on conservation of resources in organic farming,” Cooper said. “Water, gasoline, using natural products.”Clark & Sons is a certified organic farm, one of a handful in the area. Farms like this “use less land” than traditional farming and target specific markets, he said.