河南农业科学2016，Vol.45Issue(10)：45-49,5.
缓释氧肥对花铃期棉花涝害的缓解效果初探
Primary Investigation of Mitigating Effect of Oxygen Slow-release Fertilizer on Waterlogging Damage of Cotton in the Flowering and Boll Setting Stage
摘要
Abstract
In Hubei plain area,cotton field is liable to waterlogging due to more precipitation during the flowering and boll setting stage,which brings an adverse impact on cotton growth and yield. In order to study effective measures to mitigate cotton damage caused by waterlogging,the relevant experiments were made which were based on severe waterlogging damage occurred in the flowering and boll setting stages,a situation was simulated that cotton suffered from waterlogging for 10 d under flooding depth of 5—10 cm, at the 2 d before waterlogging,each plant was added 2 g oxygen slow-release fertilizer(OSF) by hole fertilization( T2 treatment) ,but there was no OSF in T1 treatment before waterlogging,cotton growth and physiological indexes was observed after waterlogging, in the harvest season cotton yield was calculated according to actual crop. The experimental results showed that OSF added into cotton filed before waterlogging could significantly increase the plant height,restrain peroxidase activity and reduce malonaldehyde accumulation in the plant. Compared with the contrast ( normal management, no waterlogging),the relative yield of the T1 treatment was 43. 31% before waterlogging,which of the T2 treatment was 50. 94% before waterlogging. Obviously,hole fertilization of OSF may remarkably mitigate waterlogging damage and reduce cotton yield loss.关键词
缓释氧肥/涝害/棉花/花铃期Key words
oxygen slow-release fertilizer/waterlogging damage/cotton/flowering and boll setting stage of cotton分类
农业科技引用本文复制引用
夏远秀,朱建强,吴启侠,李晋波,张婷..缓释氧肥对花铃期棉花涝害的缓解效果初探[J].河南农业科学,2016,45(10):45-49,5.基金项目
公益性行业(农业)科研专项(201203032) （农业）
湖北省高等学校大学生创新创业训练计划项目(104892014031) （104892014031）
