侧深施氮对机插水稻产量形成及氮素利用的影响
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朱从桦,张玉屏,向镜,张义凯,武辉,王亚梁,朱德峰,陈惠哲
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Effects of Side Deep Fertilization on Yield Formation and Nitrogen Utilization of Mechanized Transplanting Rice
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CongHua ZHU,YuPing ZHANG,Jing XIANG,YiKai ZHANG,Hui WU,YaLiang WANG,DeFeng ZHU,HuiZhe CHEN
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表4 机械侧深施氮对水稻干物质积累、转运和收获指数的影响
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Table 4 Effects of mechanized side deep placement of nitrogen fertilizer on dry matter accumulation, transportation and harvest index of rice
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年份
Year | 处理
Treatment | 干物质积累量 Dry matter accumulation (t·hm-2) | 齐穗后干物质积累所占比例RDMA-FHM (%) | 营养器官干物质输出量
DME (t·hm-2) | 营养器官干物质转运率
TRDV (%) | 收获指数
Harvest index (%) | 穗分化期
PI | 齐穗期
FH | 齐穗—成熟
FTM | 成熟期
MS | | 2017 | N0 | 1.77d | 6.06d | 4.21c | 10.26d | 40.84a | 1.11c | 22.91ab | 52.91ab | | CUB | 2.27c | 7.34c | 5.19ab | 12.53c | 41.43a | 1.19bc | 20.09ab | 52.89ab | | CUM | 2.67b | 8.22b | 5.36a | 13.58a | 39.38ab | 1.22bc | 18.25b | 52.12ab | | CRUB | 2.62b | 8.24b | 4.73b | 12.97b | 36.44bc | 1.54ab | 23.23ab | 53.64a | | CRUM | 2.94a | 8.97a | 5.02ab | 13.98a | 35.85c | 1.72a | 24.20a | 51.93b | | 2018 | N0 | 4.42c | 9.59c | 4.10c | 13.69d | 29.92a | 1.98c | 25.56a | 51.51a | | CUB | 5.22b | 12.56b | 4.89bc | 17.45c | 27.82a | 2.38b | 23.01ab | 52.32a | | CUM | 6.81a | 13.67a | 5.15b | 18.81b | 27.19a | 2.78a | 25.27a | 52.46a | | CRUB | 5.51b | 12.60b | 6.54a | 19.14b | 34.09a | 2.05bc | 19.52b | 49.89a | | CRUM | 6.99a | 13.95a | 6.36a | 20.30a | 31.11a | 3.00a | 26.70a | 49.73 a |
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