黄淮海平原不同行距配置和密度组合对小麦冠层结构和氮素利用的影响

李小敏, 龚红瑜, 田冰欣, 刘东华, 李春喜, 姜丽娜, 马建辉

Effects of Different Row Spacing Arrangements and Planting Density Combinations on Canopy Structure and Nitrogen Utilization in Wheat on the Huang-Huai-Hai Plain

Li Xiaomin, Gong Hongyu, Tian Bingxin, Liu Donghua, Li Chunxi, Jiang Lina, Ma Jianhui

表2 不同栽培模式下冬小麦的产量及其构成因素和成熟期干物质积累量

Table 2 Yield and its components, and dry matter accumulation at maturity of winter wheat under different cultivation patterns

处理 Treatment 穗数 Spike (×104/hm2) 穗粒数 Grain number per spike 千粒重 1000-grain weight (g) 产量 Yield (kg/hm2) 成熟期干物质积累量 Dry matter accumulation at maturity (kg/hm2) CK 540.00±2.50e 44.83±0.35c 35.06±0.27c 8808.77±117.04e 15 756.17±116.67d T1 560.83±7.64d 47.07±0.15b 37.68±0.64ab 9409.64±219.99d 17 793.37±126.75c T2 589.17±8.04c 47.97±0.47a 38.36±0.33a 9825.49±179.40c 18 748.45±216.28b T3 620.83±3.82b 47.17±0.35b 37.24±0.26b 10 373.85±78.86b 19 404.56±182.70a T4 680.65±8.53a 47.60±0.53ab 38.15±0.58a 10 777.24±164.45a 19 482.34±132.66a