Long-term excessive application of K₂SO₄ fertilizer alters bacterial community and functional pathway of tobacco-planting soil.

ABSTRACT: To improve tobacco leaf quality, excessive K₂SO₄ fertilizers were applied to soils in major tobacco-planting areas in China. However, the effects of K₂SO₄ application on soil microbial community and functions are still unclear. An eight-year field experiment with three kinds of K₂SO₄ amounts (low amount, K₂O 82.57 kg hm^-2, LK; moderate amount, K₂O 165.07 kg hm^-2, MK; high amount, K₂O 247.58 kg hm^-2, HK) was established to assess the effects of K₂SO₄ application on the chemical and bacterial characteristics of tobacco-planting soil using 16S rRNA gene and metagenomic sequencing approaches. Results showed that HK led to lower pH and higher

SUBMITTER: Lu Y 

PROVIDER: S-EPMC9554487 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature