Author:
Conteh A.,Lefroy R. D. B.,Blair G. J.
Abstract
Management of organic matter in soils requires techniques that accurately
monitor changes in soil organic matter over the short term and long term. This
study was carried out in a glasshouse pot experiment to examine changes in
soil carbon under the influence of long-term cropping, plant residue, and
fertiliser application, using variations in
13C/12C isotopic ratios of
organic materials and fractionation by ease of oxidation. The study examines
the changes in carbon contents of adjacent soil samples with different
cropping histories as affected by application of fertiliser and crop residue
and the growth of wheat. Significant increases in soil carbon values were
observed with residue application. The effects of the applied fertiliser on
soil carbon levels depend on the presence or absence of wheat. A higher amount
of labile carbon was found in the native soil than in cultivated soil.
Subject
Earth-Surface Processes,Soil Science,Environmental Science (miscellaneous)
Cited by
40 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献