Does Belt Uniform Sowing Improve Winter Wheat Yield under High Sowing Density?

The belt uniform (BU) sowing pattern can improve the yield of winter wheat, but whether and how BU increase under different densities is unknown. field study was conducted in Guiyang (Guizhou province) during growing season 2017–2018, 2018–2019, 2019–2020. Four wheat cultivars were used experiments to investigate changes dry matter accumulation partition, components at maturity five (75, 150, 225, 300, 375 plants per m2), three patterns: line dense (LD) with 33.3 cm row spacing (LDS); 15 (BUN), 20 (BUW) spacing. significantly increases shoot grain all four each season, particularly high density 300 m−2. Harvest index unaffected by patterns. While spike number increased, weight decreased density. 1000-grain variation explain 94% 66% number. Allometric analysis showed that more partitioned than stem leaf. We conclude associated a its partition spike.