02513naa a2200217 a 450000100080000000500110000800800410001902400370006010000200009724501620011726000090027952018340028865000140212265000090213670000180214570000150216370000230217870000210220170000210222277300520224321806882025-10-29       2026    bl uuuu     u00u1 u    #d7 a10.1016/j.still.2025.1069212DOI1 aSILVA, C. A. da  aSoil quality and soybean yield responses to occasional subsoiling and crop system diversification in a consolidated no-tillage system.h[electronic resource]  c2026  aThe occasional use of subsoiling to alleviate restrictive soil layers has been widely adopted by farmers in no- tillage areas, often without prior assessment of soil physical conditions. This study hypothesized that subsoil- ing in consolidated no-tillage systems may be unnecessary, and that cropping system diversification could serve as a viable and sustainable alternative. The objectives were to evaluate the influence of subsoiling and cropping systems on soil quality and soybean yield in a very clayey Oxisol. Soybean (Glycine max (L.) Merr.) was sown after three cropping systems: maize (Zea mays L.) + ruzigrass (Urochloa ruziziensis (R. Germ. & Evrard) Crins), monocropped xara ́es grass (Urochloa brizantha (A. Rich.) Stapf. cv. Xara ́es) or intercropped with crotalaria (Crotalaria ochroleuca G. Don), under no-tillage and subsoiling, along with an additional treatment. The addi- tional treatment consisted of one year of intercropping xara ́es grass and crotalaria following subsoiling. Soil penetration resistance, dry matter production of forage grasses, amount of soil straw, root colonization by arbuscular mycorrhizal fungi, soil structural quality index, and soybean grain yield were evaluated. Subsoiling was ineffective in reducing soil penetration resistance beyond 210 days post-intervention, negatively impacting soybean yield. The additional treatment effectively enhanced soil cover and promoted soil structural recovery after subsoiling. Multivariate analysis highlighted that diversification of the soybean–maize system through plant-based strategies improved soil quality and, in some cases, increased soybean yield. Occasional subsoiling is not recommended, as its benefits are short-lived, whereas biological approaches proved more effective in enhancing soil function and system resilience.  aQualidade  aSolo1 aGARCIA, R. A.1 aTOMAZI, M.1 aLOURENTE, E. R. P.1 aRODRIGUES, S. A.1 aFERNANDES, D. M.  tSoil & Tillage Researchgv. 257, e106921, 2026.