排灌机械工程学报
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排灌机械工程学报  2018, Vol. 36 Issue (9): 920-924    DOI: 10.3969/j.issn.1674-8530.18.1075
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控制灌溉条件下增氧对超级稻根系生长及水分利用效率的影响
廖健程, 胡德勇*, 裴毅, 陈哲, 丁鑫, 罗东城
湖南农业大学工学院, 湖南 长沙 410128
Effects of aeration on root growth and water use efficiency of super rice under controlled irrigation conditions
LIAO Jiancheng, HU Deyong*, PEI Yi, CHEN Zhe, DING Xing, LUO Dongcheng
Engineering College, Hunan Agricultural University, Changsha, Hunan 410128, China
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摘要 以超级稻“陵两优268”为试验材料,采用控制灌溉与增氧灌溉技术相结合,设置4组处理,分别为机械控制灌溉增氧(JX)、超微泡控制灌溉增氧(WP)、控制灌溉(CK)、淹水灌溉(YS),研究控制灌溉条件下增氧对水稻根系生长特征及水分利用效率的影响.结果表明:控制灌溉条件下增氧与淹水灌溉条件相比,有效节约用水最大达15.3%,有利于促进根系生长,增大了水稻的根部干物质质量,降低了水稻的茎叶干物质质量;提高了水稻根体积、根粗及干物质的质量,能显著增强水稻的根系活力,延缓水稻根系的衰老;产量上,控制灌溉增氧处理基本与淹灌处理接近,但结实率、千粒重、水分利用效率都优于淹灌处理.
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廖健程
胡德勇*
裴毅
陈哲
丁鑫
罗东城
关键词控制灌溉   增氧灌溉   根系   产量   水分利用效率     
Abstract: Super rice—Lingliangyou 268 was used as test materials, by combing controlled irrigation and aeration technology. Four treatments, namely mechanically controlled irrigation aeration(JX), were set up super-micro-bubble controlled irrigation aeration(WP), controlled irrigation(CK)and flood irrigation(YS), to identify effects of aeration on root growth characteristics and water use efficiency of super rice under controlled irrigation conditions. The results show that the effective water saving is up to 15.3% in maximum due to aeration under the controlled irrigation compared with food irrigation condition. Additionally, the root growth is promoted and the dry matter weight of rice roots is increased and the dry matter weight of both stem and leaf are reduced. So the root volume and thickness as well as dry matter weight have been improved significantly, and the root activity is enhanced, the aging of rice roots is delayed. In terms of yield, the controlled irrigation aeration is similar to the flood irrigation, but the seed setting rate, 1000-grain weight, and water use efficiency are better than the latter.
Key wordscontrolled irrigation   aerobic irrigation   root system   yield   water use efficiency   
收稿日期: 2018-04-28;
基金资助:

国家自然科学基金资助项目(31401951)

引用本文:   
廖健程,胡德勇*,裴毅等. 控制灌溉条件下增氧对超级稻根系生长及水分利用效率的影响[J]. 排灌机械工程学报, 2018, 36(9): 920-924.
LIAO Jian-Cheng,HU De-Yong-*,PEI Yi et al. Effects of aeration on root growth and water use efficiency of super rice under controlled irrigation conditions[J]. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(9): 920-924.
 
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