Data Sheet 1_Short-term effects of different forms of straw return on rhizosphere and bulk soil bacterial communities and microenvironmental conditions in saline-alkali maize fields.pdf

Both CS and GS significantly increased rhizosphere available phosphorus content and increased maize yield by 24.87% and 23.35%, respectively. Straw-return treatments significantly altered bacterial community structure in both rhizosphere and bulk soils, with GS enriching a greater number of treatment-specific bacterial taxa in both habitats. Functional prediction based on bacterial community composition showed that, compared with CK, GS was associated with significantly lower predicted relative abundances of multiple MetaCyc pathways related to aerobic respiration, the tricarboxylic acid cycle, and branched-chain amino acid biosynthesis in both rhizosphere and bulk soils.

Overall, different straw-return forms exerted distinct short-term effects on the soil microenvironment and bacterial communities. Notably, GS showed a relative advantage in reducing rhizosphere salinity, particularly salt content, while both CS and GS improved rhizosphere nutrient conditions and maize yield.</p>