期刊论文

Effects of aeration on root growth and water use efficiency of super rice under controlled irrigation conditions

Hu, D.

中文

排灌机械工程学报

1674-8530

2018

36

9

920-924

10.3969/j.issn.1674-8530.18.1075

国家自然科学基金资助项目（31401951）；

本校为第一且通讯机构

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.

Super rice-Lingliangyou 268 was used as test materials, by combing controlled irrigation and aeration technology. Four treatments were set up, namely mechanically controlled irrigation aeration(JX), 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 sa-ving is up to 15.3% in maximum due to aeration under the ...