
Frontiers in Sustainable Food Systems, Год журнала: 2024, Номер 8
Опубликована: Дек. 23, 2024
Introduction Uruguayan agriculture’s transition to no-till farming and intensified practices, replacing crop-pasture (CP) systems with continuous cropping (CC) rotations, has disrupted biological nitrogen fixation (BNF). Despite this, diversified sequences, including C4 species, have maintained the soil organic carbon (SOC) balance under management, limited overall impacts on productivity sustainability. The effects of these changes wheat use efficiency (NUE) need be further investigated. Methods This study, conducted within a long-term experiment (LTE) rainfed conditions, compared in CP CC rotations. Wheat following were analyzed over three seasons. Variables measured included (N) concentration, grain yield (WGY), protein concentration (GPC), NUE. Four N fertilizer levels applied each rotation system assess their impact. Results consistently outperformed WGY, 2425 1668 kg ha −1 averages, respectively. showed slightly higher GPC (10.92%) than (10.48%). Nitrate-N at tillering positively correlated WGY negatively GPC, but relationship differed by rotation. Soil NUE indices Discussion study’s findings highlighted potential rotation, especially when species crop sequence, achieve short term due healthier conditions seeded after post-pasture CP. Additionally, our study highlights that effect previous was more relevant expected residual pasture phase CP, primarily quality residues temporary adverse compaction caused livestock trampling.
Язык: Английский