1. Changes in soil carbon stock under the wheat-based cropping systems at Vojvodina province of Serbia.
- Author
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Seremesic, Srdjan, Ćirić, Vladimir, Milošev, Dragiša, Vasin, Jovica, and Djalovic, Ivica
- Subjects
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CROPPING systems , *CARBON in soils , *MICROBIOLOGY , *WHEAT , *FERTILIZERS , *CARBON sequestration - Abstract
The aim of this study was to assess the changes in soil organic carbon (SOC) stock in relation to the carbon (C) input from nine wheat-based cropping systems and untilled grass. The SOC pool ranged from 32.1 to 49.4 Mg ha−1at 0–20 cm and from 94 to 171 Mg ha−1at 0–100 cm for the arable soil, while in untilled grassland, it was higher (54 and 185 Mg C ha−1, respectively). SOC stock was observed to be lower at the unfertilized 2-year rotation and higher at the 4-year rotation with manure and mineral fertilization. The study showed a winter wheat yield decrease of 176.8 kg ha−1for a 1- Mg ha−1SOC stock change in the 0–20-cm soil depth. The estimated C input for SOC stock maintenance was from 266 to 340 g C m−2 year−1for winter wheat and rotations, respectively. Additional C input did not increase the SOC pool, suggesting that arable plots had a limited ability to increase SOC. These results provide guidance for the selection of management practices to improve C sequestration. [ABSTRACT FROM PUBLISHER]
- Published
- 2017
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