Abstract

Carbon sequestration and increases in soil organic matter have direct positive impacts on soil quality and fertility. This two-year study was conducted to evaluate effect of tillage (zero, minimum, conventional and deep tillage) and nitrogen fertilizer (N @ 0, 130, 160 and 190 kg ha-1) on wheat yield, carbon and nitrogen sequestration capacity, and soil organic carbon and nitrogen concentrations. The results show that tillage practices had a statistically significant effect on soil organic carbon and total nitrogen at different soil depths; soil organic carbon decreased with depth. Zero tillage treatments had a highly significant soil organic carbon than those of minimum, conventional and deep tillage treatments. Zero tillage treatments had higher soil organic carbon storage in the cultivated layer (0-15 cm) than the tillage treatments.

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