Effect of manure on organic carbon content and fractal dimensions of aggregates

Authors : Coşkun GÜLSER, Feride CANDEMİR, Yasemin KANEL, Salih DEMİRKAYA
Pages : 1-5
Doi:10.18393/ejss.85620
View : 54 | Download : 5
Publication Date : 2015-01-08
Article Type : Research Paper
Abstract :Effects of farmyard manure treatments on some soil structural parameters such as, aggregate stability insert ignore into journalissuearticles values(AS);, geometric mean weight insert ignore into journalissuearticles values(GMWD); and mean weight insert ignore into journalissuearticles values(MWD); diameters, fragmentation insert ignore into journalissuearticles values(D); and mass insert ignore into journalissuearticles values(D m ); fractal dimensions, bulk density insert ignore into journalissuearticles values(BD); and organic C insert ignore into journalissuearticles values(OC); contents of aggregates were determined in a clay soil. Application of 67 Mg ha -1 farmyard manure to Vertic Haplustoll soil decreased AS 12.14% compared with the control. Manure treatment increased the proportion of microaggregates in the fractions <1.00 mm in size and decreased the proportion of macroaggregates in the fractions >1.00 mm in size. While OC contents of aggregates increased between 22.8% and 123.4%, BD values decreased between 0.8% and 16.6% with the manure treatment. Fragmentation insert ignore into journalissuearticles values(D); and mass insert ignore into journalissuearticles values(D m ); fractal dimensions were increased with decreasing numbers of macroaggregates of the clay soil. GMWD insert ignore into journalissuearticles values(1.16 mm); and MWD insert ignore into journalissuearticles values(1.86 mm); obtained in the manure treatment were lower than that in the control treatment insert ignore into journalissuearticles values(1.20 mm and 1.95 mm, respectively);. Although OC content of the aggregates increased with the manure treatment, the number of macroaggregates of clay soil decreased with decreasing AS..
Keywords : Manure, aggregation, fractal dimensions, organic carbon

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