Combined application of biochar and nitrogen fertilizer improves rice yield, microbial activity and N-metabolism in a pot experiment.

ABSTRACT: The excessive use of synthetic nitrogen (N) fertilizers in rice (Oryza sativa L.) has resulted in high N loss, soil degradation, and environmental pollution in a changing climate. Soil biochar amendment is proposed as a climate change mitigation tool that supports carbon sequestration and reduces N losses and greenhouse gas (GHG) emissions from the soil. The current study evaluated the impact of four different rates of biochar (B) (C/B₀-0 t ha^-1, B₁-20 t ha^-1, B₂-40 t ha^-1, and B₃-60 t ha^-1) and two N levels (N₁; low (270 kg N ha^-1) and N₂; high (360 kg N ha^-1)), on rice (cultivar Zhenguiai) grown in pots. Significant increases in the average soil micro

SUBMITTER: Ali I 

PROVIDER: S-EPMC7668215 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature