Wei Dai1, Kaikai Fang1, Hui Gao1, Jun Wang1, Petri Penttinen2, Zhimin Sha1,*, Linkui Cao1,*
Phyton-International Journal of Experimental Botany, Vol.91, No.1, pp. 169-183, 2022, DOI:10.32604/phyton.2022.016407
Abstract Soil organic carbon (SOC) fractions and C turnover related enzyme activities are essential for nutrient cycling. This is because they are regarded as important indicators of soil fertility and quality. We measured the effects of wheat straw incorporation on SOC fractions and C turnover related enzyme activities in a paddy field in subtropical China. Soil samples were collected from 0–10 cm and 10–20 cm depths after rice harvesting. The total SOC concentrations were higher in the high rate of wheat straw incorporation treatment (NPKS2) than in the not fertilized control (CK) (P < 0.05). The concentrations of labile C fractions [i.e., water soluble… More >
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