Nitrogen Mineralization for Three Compost Fraction Sizes.
Poster Number 2034
Monday, November 4, 2013
Tampa Convention Center, East Hall, Third Floor
Dorcas H. Franklin, Crop and Soil Sciences Dept., UGA, Athens, GA, Nedim Ozenc, Crop and Animal Production Program, Ordu University, Vocational School, Ordu, Turkey, Damla Bender-Ozenc, Department of Soil Science and Plant Nutrition, Ordu University, Faculty of Agriculture, Ordu, Turkey and Miguel Cabrera, Crop and Soil Sciences, University of Georgia, Athens, GA
The rate of nitrogen mineralization from composted materials may be affected by fraction size. This study was conducted to evaluate nitrogen mineralization from 3 size fractions (< 1.0 mm, 1.0 to < 2.0, and 2.0 to 4.0 mm) of 5 different composted materials. Each experimental unit consisted of 10 g of soil mixed with 1 g of compost for each size fraction (5 sampling dates x 3 replications each). The experimental units were incubated at 30C for 7, 14, 28, 56, and 116 days Three of the composts showed the smallest nitrogen mineralization from the finest fraction (<1 mm) and the greatest mineralization from the coarser fraction (2-4 mm). These results suggest that sieving composted materials may have an impact on nitrogen mineralization.
