피복작물 이용방법이 양분공급량과 배 과실품질에 미치는 영향

This study was conducted to evaluate the effects of ground cover treatments on the nutrient contribution of the cover crops and fruit quality of ``Niitaka`` pear (Pyrus pyriforia) trees, in order to develop utilization of the ground covers as an organic nutrient source in a pear orchard. The study was conducted at diligent farmer in Boseong in Chonnam, and the treatments included; 1) sod culture, 2) winter cover crop [ryegrass+hairy vetch], and 3) winter [ryegrass+hairy vetch]+summer [green solgo(sudan grass (Sorghum bicolor L.))+nemajanghwang (crotalaria (Crotalaria juncea L.)] cover crops. Winter+summer cover crops provided greater amounts of residue, followed by winter cover crop and sod culture. The difference of amounts of residue from the ground cover treatments affected to the total N, P, and K contents in the soil, which were greater nutrient levels than those of recommendation of a conventional pear orchard. Greater amounts of residue from the ground covers increased organic matter and concentrations of K, Ca, and Mg in soil. Fruit quality was not affected amongst ground cover treatments.