Effects of Some Plant Residues on Nitrogen Mineralization and Biological Activity in Soils

Authors : Emine Erman KARA

Pages : 457-460

View : 14 | Download : 6

Publication Date : 2000-08-01

Article Type : Research Paper

Abstract :The objective of this experiment was to determine the rate of decomposition and nitrogen mineralization of plant residues in soil under laboratory conditions. The experiment consisted of six treatments: control, industrial tobacco residues, rice straw, rice straw + mineral nitrogen, rice husks and rice husks+mineral nitrogen. The plant materials were added at a rate of 2000 mg/kgC and the amount of NH 4 + -N completed the C:N ratio of the added materials to 12.5. After adding the plant material the following measurements were carried out: soil respiration measurements 14 times, dehydrogenase activity 14 times, mineral nitrogen insert ignore into journalissuearticles values(ammonium and nitrate);. The results show that the C:N ratio was found to affect the net mineralization and nitrogen mineralization under the present conditions for decomposition of plant residues. Mineral nitrogen addition is conducive for short-term decomposition when the C:N ratio is large.
Keywords : Turk J Agric For, 24, 2000, , 457 460 Turk J Agric For, vol 24, iss 4