| 不同施氮量下稻虾共作水稻产量与田面水水质特征 |
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| 引用本文： | 黄飞,聂玺斌,杨朔,丁紫娟,李锦涛,郜红建,叶新新,葛永虎,梅军,曹玉贤,侯俊.不同施氮量下稻虾共作水稻产量与田面水水质特征[J].中国稻米,2022,28(2):51-55. |
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| 作者姓名： | 黄飞 聂玺斌 杨朔 丁紫娟 李锦涛 郜红建 叶新新 葛永虎 梅军 曹玉贤 侯俊 |
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| 作者单位： | 1.长江大学 农学院/湿地生态与农业利用教育部工程研究中心,湖北 荆州 434025;2.安徽农业大学 资源与环境学院,合肥 230036;3.仙桃市农业技术推广中心,湖北 仙桃 433000;4.中垦锦绣华农武汉科技有限公司,武汉 430070;5.长江大学 生命科学学院,湖北 荆州 434025 |
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| 基金项目： | 长江经济带磷资源高效利用创新平台开放基金(KJ20190197);国家重点研发计划(2016YFD0300900) |
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| 摘 要： | 研究了不同氮用量对稻虾共作水稻产量与田面水水质的影响,以为稻虾共作实现精确施肥提供理论依据.试验共设5个氮肥用量处理,分别设置氮0、60、120、180和240 kg/hm2,依次以CK、N60、N120、N180、N240表示,氮肥均按基肥:分蘖肥7:3施肥.结果表明,施肥能维持土壤较高的无机氮含量并能促进水稻干物质...
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| 关 键 词： | 稻虾共作 田面水 施氮量 水稻产量 氨态氮 亚硝态氮 |
| 收稿时间： | 2021-11-11 |
Effects of Different Nitrogen Amounts on Rice Yield and Field Water Quality in Rice-crayfish Co-culture System |
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| HUANG Fei,NIE Xibin,YANG Shuo,DING Zijuan,LI Jintao,GAO Hongjian,YE Xinxin,GE Yonghu,MEI Jun,CAO Yuxian,HOU Jun.Effects of Different Nitrogen Amounts on Rice Yield and Field Water Quality in Rice-crayfish Co-culture System[J].China Rice,2022,28(2):51-55. |
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| Authors: | HUANG Fei NIE Xibin YANG Shuo DING Zijuan LI Jintao GAO Hongjian YE Xinxin GE Yonghu MEI Jun CAO Yuxian HOU Jun |
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| Institution: | 1.College of Agriculture, Yangtze University/Engineering Research Center of Ecology and Agricultural Use of Wet land, Ministry of Education, Jingzhou, Hubei 434025, China;2.College of Resources and Environment, Anhui Agricultural University, Hefei 230036, China;3.Xiantao Agricultural Technology Promotion Center, Xiantao, Hubei 433000, China;4.China Farm （Wuhan） Good-seed Technology Co., Ltd., Wuhan 430070, China;5.College of Life Science, Yangtze University, Jingzhou, Hubei 434025, China |
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| Abstract: | To provide a theoretical basis to use appropriate nitrogen （N） amount for accurate fertilization in the rice-crayfish co-culture system, the effects of different nitrogen amounts on rice yield and surface water quality were studied. Five N application rates were set at N 0, 60, 120, 180 and 240 kg/hm2 based the same ratio of basal fertilizer to tillering fertilizer （7∶3）, which was represented by CK, N60, N120, N180 and N240, respectively. The results showed that fertilization could maintain a higher inorganic N content in the soil and promote dry matter accumulation in rice. The fertilization treatments increased rice yield by 8%~42%, of which N120 obtained the highest yields, which is 42% higher than CK. After nitrogen application, the ammonia N content in the surface water increased rapidly at the first 3 days and then decreased. After 14 days, it dropped to the lowest and became stable. Among them, the ammonia N concentration of different treatments within 5 days after nitrogen application was significantly different, and the value increased as the nitrogen fertilizer amount increased. The nitrite N concentration in surface water increased at first 6 days, then decreased and then increased. The difference between the fertilization treatments on the 3rd day was significant, and the difference between the treatments after the 7th day was not significant. Different nitrogen application amounts affected the pH of the surface water. The pH fluctuation of each treatment within 14 days after fertilization was between 6.57 and 8.22, but the difference between the treatments was not significant after 14 days. The appropriate amount of nitrogen application promotes the increase of rice yield, but also reduces the content of ammonia N and nitrite N in the field surface water, maintaining a good living environment for crayfish, and 120~130 kg/hm2 can be used as the recommended nitrogen application rate for rice-shrimp co-cropping system. |
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| Keywords: | rice-crayfish co-culture surface water nitrogen application amount grain yield ammonia N nitrite N |
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