Rotation-driven changes in physicochemical properties modulate soil microbial diversity and community complexity in tobacco-woad soils.

ABSTRACT: Continuous tobacco monocropping leads to soil degradation and yield reduction. To address this, we evaluated the effects of tobacco (Nicotiana tabacum L.)-woad (Isatis tinctoria L.) rotation (A2, A4) compared to tobacco monoculture (A1) and woad monoculture (A3) on soil health and crop quality over a multi-year period. Methods involved comparative analysis of soil nutrients, enzyme activities, microbial community structure, and crop chemical composition and economic value. Key results demonstrated that tobacco-woad rotation significantly improved soil fertility. The tobacco-woad rotation could increase the content of organic matter, alkaline available nitrogen, available phosphorus, and available potassium in the soil, which were increased by 1.44%, 17.96%, 4.61%, and 16.20%,

SUBMITTER: Wang Z 

PROVIDER: S-EPMC12772243 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature