RT Journal
T1 IMPACT OF CONSERVATION TILLAGE ON ORGANIC MATTER DYNAMICS IN LOESS DRYLAND SOIL, PUNJAB, PAKISTAN
A1 I. Naz
A1 S. S. Ijaz
A1 Mussie Y. Habteselassie
A1 M. Ansar
A1 K. S. Khan
JF Journal of Animal and Plant Sciences
JO JAPS
SN 1018-7081
VO 32
IS 5
SP 1274
OP 1286
YR 2022
FD 2022/09/30
DO DOI https://doi.org/10.36899/JAPS.2022.5.0534
AB <p>Conservation tillage and carbon sequestration are critical issues in rain-fed farming areas of Pakistan. Conservation tillage is not extensively used in developing countries on dryland soil where marginal farming is practiced. Therefore, primary purpose of this experiment was to determine the influence of conservation tillage practices on soil organic carbon (SOC), particulate organic matter (POC), mineral associated organic carbon (MOC), microbial biomass carbon (MBC) and dehydrogenase activity (Dha) in loess dry land Pothwar, Punjab, Pakistan. The tillage practices included zero tillage (ZT), minimum tillage (MT), reduced tillage (RT) and conventional tillage (CT) with mouldboardplough as a control in main plot and fallow-wheat (<em>Triticumaestivum</em>&nbsp;L.) and mungbean (<em>Vigna radiate L.</em>) crop rotation in sub plot as a split plot layout. The results indicated that ZT showed higher SOC (7.90 g kg<sup>-1</sup>), POC (2.35 g kg<sup>-1</sup>), MOC (5.1 g kg<sup>-1</sup>), MBC (359.37 &mu;gg<sup>-1</sup>) and Dha (45.12 TPF&mu;gg<sup>-1</sup> dry weight) than CT. Among crop rotation, overall mungbean-wheat showed higher values as compared to fallow-wheat crop. The study indicated that conservation tillage practices with legume crop rotation have potential for improving soil organic carbon storage and hence carbon sequestration in soil.</p>
K1 Conservation tillage; soil organic carbon; microbial biomass carbon; dehydrogenase enzyme; loess dryland; mungbean-wheat
PB Pakistan Agricultural Scientists Forum
LK https://thejaps.org.pk/AbstractView.aspx?mid=AG-20-0197