基蘖同步侧深施下氮肥运筹对水稻生长、氮素利用和产量的影响

游昊, 宋文杰, 付斌, 张大弘, 江勋, 卢碧林

Effects of Synchronized Basal-Tiller Side Deep Nitrogen Application on Rice Growth, Nitrogen Use Efficiency, and Yield

You Hao, Song Wenjie, Fu Bin, Zhang Dahong, Jiang Xun, Lu Bilin

表4 各处理下水稻在不同生育期的干物质积累量

Table 4 Dry matter accumulation of rice at different growth stages under each treatment ×103 kg/hm2

年份 Year 处理 Treatment 干物质积累量 Dry matter accumulation 净干物质积累量 Net matter accumulation 分蘖期 Tillering stage 孕穗期 Booting stage 齐穗期 Full heading stage 成熟期 Mature stage 分蘖―孕穗期 Tillering-booting 孕穗―齐穗期 Booting-full heading 齐穗―成熟期 Full heading-mature 2021 CK 1.30±0.02a 8.21±0.17b 14.59±0.19b 22.79±0.39b 6.92±0.16b 6.38±0.24a 8.20±0.23b N0 0.56±0.01e 5.78±0.17d 9.81±0.39d 16.06±0.41d 5.22±0.16d 4.03±0.27c 6.24±0.13d N1 1.30±0.05a 9.14±0.09a 15.99±0.02a 24.91±0.33a 7.84±0.11a 6.85±0.07a 8.92±0.31a N2 1.24±0.05b 8.20±0.15b 14.76±0.29b 23.25±0.18b 6.96±0.12b 6.56±0.44a 8.50±0.14b N3 1.19±0.02c 7.66±0.13c 13.33±0.14c 21.13±0.31c 6.46±0.15c 5.67±0.02b 7.80±0.22c N4 1.20±0.02c 8.14±0.21b 14.90±0.56b 23.27±0.54b 6.94±0.20b 6.76±0.62a 8.37±0.06b N5 1.03±0.02d 7.53±0.08c 13.06±0.18c 20.87±0.37c 6.50±0.08c 5.53±0.16b 7.81±0.20c 2022 CK 1.04±0.02b 8.43±0.27b 14.30±0.19b 20.05±0.60b 7.38±0.27b 5.88±0.40a 5.75±0.66bc N0 0.59±0.01c 5.64±0.51d 9.68±0.17d 14.28±0.68d 5.05±0.01e 5.59±0.51a 4.60±0.17c N1 1.27±0.08a 9.56±0.36a 15.15±0.21a 22.17±0.44a 8.29±0.08a 5.59±0.36a 7.02±0.21a N2 1.24±0.08a 8.36±0.36b 14.20±0.48b 20.56±0.27b 7.12±0.08bc 5.85±0.36a 6.36±0.48ab N3 1.23±0.02a 7.66±0.12c 12.36±0.28c 18.50±0.67c 6.43±0.02d 4.70±0.12b 6.14±0.28ab N4 1.26±0.05a 8.31±0.32b 14.15±0.09b 20.29±1.01b 7.05±0.05bcd 5.84±0.32a 6.14±0.09ab N5 1.02±0.04b 7.56±0.09c 12.13±0.15c 18.35±0.32c 6.54±0.04cd 4.57±0.09b 6.22±0.15ab 年份Year (Y) ** ns ** ** ns ** ** 处理Treatment (T) * ** ** ** ** ** ** Y×T ** ns * ns ns ns ns