江淮下游不同播期对稻-麦周年作物产量、品质及温光资源利用的影响
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陈天晔, 袁嘉琦, 刘艳阳, 许轲, 郭保卫, 戴其根, 霍中洋, 张洪程, 李国辉, 魏海燕
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Effects of different sowing dates on crop yield, quality, and annual light-temperature resources utilization for rice-wheat double cropping system in the lower reaches of the Yangtze-Huaihe Rivers valley
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Tian-Ye CHEN, Jia-Qi YUAN, Yan-Yang LIU, Ke XU, Bao-Wei GUO, Qi-Gen DAI, Zhong-Yang HUO, Hong-Cheng ZHANG, Guo-Hui LI, Hai-Yan WEI
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表6 播期对小麦、水稻光能生产效率和积温生产效率的影响
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Table 6 Effects of sowing date on production efficiency of accumulated temperature and radiation of wheat-rice double cropping system
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水稻品种
Rice cultivar | 水稻播期
Rice
sowing date | 小麦播期
Wheat
sowing date | 积温生产效率
Temperature production efficiency
(kg hm-2 ℃-1) | 光能生产效率
Radiation production efficiency
(g MJ-1) | 水稻季
Rice season | 小麦季
Wheat season | 周年
Annual | 水稻季
Rice season | 小麦季
Wheat season | 周年
Annual | 南粳9108
Nanjing 9108 | R-I | W-I | | 4.143 a | 3.444 a | | 0.294 a | 0.345 a | | W-II | 2.869 a | 4.120 a | 3.440 a | 0.372 a | 0.287 b | 0.343 a | | W-III | | — | — | | — | — | | R-II | W-I | | 4.143 a | 3.376 a | | 0.294 a | 0.337 a | | W-II | 2.876 a | 4.120 a | 3.371 a | 0.366 a | 0.287 a | 0.335 a | | W-III | | 3.547 b | 3.202 b | | 0.243 b | 0.317 b | | R-III | W-I | | — | — | | — | — | | W-II | 2.780 b | 4.120 a | 3.244 a | 0.355 b | 0.287 a | 0.322 a | | W-III | | 3.547 b | 3.045 b | | 0.243 b | 0.303 b | 连粳11
Lianjing 11 | R-I | W-I | | 4.143 a | 3.398 a | | 0.294 a | 0.339 a | | W-II | 2.788 b | 4.120 a | 3.393 a | 0.360 b | 0.287 a | 0.337 a | | W-III | | — | — | | — | — | | R-II | W-I | | 4.143 a | 3.404 a | | 0.294 a | 0.341 a | | W-II | 2.910 a | 4.120 a | 3.400 a | 0.375 a | 0.287 a | 0.339 a | | W-III | | 3.547 b | 3.229 b | | 0.243 b | 0.321 b | | R-III | W-I | | 4.143 a | 3.376 a | | 0.294 a | 0.331 a | | W-II | 2.925 a | 4.120 a | 3.356 a | 0.367 b | 0.287 a | 0.328 a | | W-III | | 3.547 b | 3.152 b | | 0.243 b | 0.308 b |
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