期刊论文

Effects of oxygen content in soil magnetism on the growth characteristics of cucumber roots at different growth period

中文

中国农业大学学报

1007-4333

2017

22

5

49-56

10.11841/j.issn.1007-4333.2017.05.06

31272248:国家自然科学基金 31401951:国家自然科学基金 2013DFG1190:国家国际科技合作专项基金

本校为第一机构

为研究土壤耕作层不同深度O_2含量对黄瓜各生育期根系生长特性的影响,在大棚内采用不同增氧灌溉方式(A2:每2 h加氧灌溉,A4:每4 h加氧灌溉,A8:每8 h加氧灌溉,CK:不加氧处理)对盆栽黄瓜各生育期进行增氧处理。测定土壤耕作层不同深度O_2含量和黄瓜各生育期的根系活力、根系农艺性状、根系健康指数等指标。结果表明:1)根系活力、根系农艺性状、根系健康指数等指标在黄瓜幼苗期表现为A4>A2>A8>CK,而初花期和结瓜期表现为A2>A4>A8>CK。2)相关性分析表明,土壤耕作层O_2含量与根系活力,根系农艺性状,根系健康指数呈显著正相关,且土壤耕作层O_2含量与根系各指标相关系数:初花期>结瓜期>幼苗期。由此推断...

To study the effects of oxygen content at different depth of soil magnetism on the physiological and biochemical characteristics of cucumber root, different aerobic irrigations （A2, increasing oxygen once every two hours; A4,increasing oxygen once every four hours; A8, increasing oxygen once every eight hours; CK, no oxygen increasing） were applied on each growth period of potted cucumber in green house at each growth period. O2 contents in soil magnetism at different depth were detected and the index of cucumber root activity, agronomic trai...