| 稳稻种养模式下水稻产量形成及周年经济效益研究 |
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| 引用本文： | 蒋岩,赵灿,刘光明,赵凌天,王维领,霍中洋. 稳稻种养模式下水稻产量形成及周年经济效益研究[J]. 中国稻米, 2021, 27(5): 23-28. DOI: 10.3969/j.issn.1006-8082.2021.05.005 |
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| 作者姓名： | 蒋岩 赵灿 刘光明 赵凌天 王维领 霍中洋 |
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| 作者单位： | 农业农村部长江流域稻作技术创新中心/江苏省作物栽培生理重点实验室/江苏省粮食作物现代产业技术协同创新中心/扬州大学 水稻产业工程技术研究院,江苏 扬州 225009 |
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| 基金项目： | 江苏省重点研发计划项目（BE2020319; BE2019377; BE2018362）;国家重点研发计划项目（2018YFD0300802） |
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| 摘 要： | 为了缓解稻田共作出现的"重渔轻稻"矛盾,以南粳9108和丰优香占为供试品种,以稻麦轮作(R-W)为对照,设置稻鸭共作-紫云英轮作(RD-Mv)、稻虾轮作(R-C)两种稳稻种养模式,通过综合栽培措施调控构建稳产水稻群体(产量＞7.5 t/hm2),研究不同稻作模式下水稻产量形成和周年经济效益.结果 表明,与R-W相比,R...
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| 关 键 词： | 水稻 种植模式 产量 干物质生产 周年经济效益 |
| 收稿时间： | 2021-06-19 |
Characteristics of Rice Yield Formation and Annual Economic Benefit under Stable Rice Integrative Cultivation Mode |
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| Yan JIANG,Can ZHAO,Guangming LIU,Lingtian ZHAO,Weiling WANG,Zhongyang HUO. Characteristics of Rice Yield Formation and Annual Economic Benefit under Stable Rice Integrative Cultivation Mode[J]. China Rice, 2021, 27(5): 23-28. DOI: 10.3969/j.issn.1006-8082.2021.05.005 |
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| Authors: | Yan JIANG Can ZHAO Guangming LIU Lingtian ZHAO Weiling WANG Zhongyang HUO |
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| Affiliation: | Innovation Center of Rice Cultivation Technology in Yangtze Valley, Ministry of Agriculture and Rural Affairs / Jiangsu Key Laboratory of Crop Cultivation and Physiology / Jiangsu Co-innovation Center for Modern Production Technology of Grain Crops / Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China |
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| Abstract: | In order to relieve the contradiction of “attaching importance to aquatic but neglecting rice”, we used two rice cultivars, Nangeng 9108 and Fengyouxiangzhan as test varieties, set up two rice farming patterns of rice-duck co-farming with milk vetch rotation （RD-Mv）, rice-crayfish rotation （R-C） , and rice-wheat rotation （R-W） as the control. The stable-yield rice population （yield > 7.5 t/hm2） was constructed by comprehensive cultivation measures to study the yield formation and annual economic benefits of rice under different rice cropping patterns. The results showed that, the rice yield of RD-Mv was significantly increased compared with R-W, with an average increase of 7.17%. The rice yield of R-C was equivalent to that of R-W. RD-Mv increased yield by raising panicle number and R-C stablized yield by increasing grain number. RD-Mv and R-C could increase the SPAD value of flag leaves, and increase leaf area index （LAI） by 9.97%~33.45% and 12.78%~39.78% respectively than R-W. The dry matter accumulation of RD-Mv and R-C were increased, mainly from sowing to tillering stages. In terms of annual benefits, R-C had a high profit, with the ratio of production to investment of 3.12, and RD-Mv increased profits, but the ratio of production to investment was only 2.29, which was lower than 2.51 of R-W. In conclusion, both RD-Mv and R-C could stabilize yield production and increase income, The reasons for increasing and stabling yield were high chlorophyll content, LAI, photosynthetic potential and dry matter accumulation at the early stage as well as good population growth. |
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| Keywords: | rice planting pattern yield dry matter production annual economic benefit |
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