Soil Bacterial Community in the Multiple Cropping System Increased Grain Yield Within 40 Cultivation Years.

ABSTRACT: The shortage of land resources restricts the sustainable development of agricultural production. Multiple cropping has been widely used in Southern China, but whether the continuous planting will cause a decline in soil quality and crop yield is unclear. To test whether multiple cropping could increase grain yield, we investigated the farmlands with different cultivation years (10-20 years, 20-40 years, and >40 years). Results showed that tobacco-rice multiple cropping rotation significantly increased soil pH, nitrogen nutrient content, and grain yield, and it increased the richness of the bacterial community. The farmland with 20-40 years of cultivation has the highest soil organic carbon (SOC), ammonium nitrogen, and grain yield, but there is no significant difference in the diversity an

SUBMITTER: Chen T 

PROVIDER: S-EPMC8721226 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature