鄂东南冷浸稻田养分特征及水稻合理栽培措施研究  

Characteristic of Nutrient in Cold Waterlogged Paddy Field in Southeastern Hubei and Reasonable Cultivation Measures

作　　者：徐祥玉[1] 张明祥 张敏敏[1] 刘晔[1] 袁家富[1] 熊又升[1] 

机构地区：[1]湖北省农业科学院植保土肥研究所,武汉430064 [2]湖北省现代化农业展示中心,武汉430345

出　　处：《湖北农业科学》2015年第22期5535-5540,共6页Hubei Agricultural Sciences

基　　金：国家自然科学基金项目(41301306);湖北省农业科学院青年基金项目(2012NKYJJ07);国家公益性行业(农业)科研专项(201003059);国家科技支撑计划项目(2012BAD05B05;2013BAD07B10);湖北省农业科技创新中心项目(2011-620-003-03-06)

摘　　要：通过对鄂东南丘陵区冷浸稻田和正常稻田的对比调查取样,研究冷浸稻田的主要营养障碍因子;通过大田试验,研究冷浸稻田适宜的起垄规格和插秧密度,为冷浸稻田改良提供技术支持。结果表明,与正常稻田相比较,冷浸稻田土壤p H较高,有机质、全氮、全磷、全钾、碱解氮含量与正常稻田基本一致;冷浸稻田速效磷、速效钾含量明显偏低,是主要的营养障碍因子。起垄可以明显提高冷浸稻田产量,合理的起垄高度和宽度分别为15 cm和120 cm,冷浸稻田插秧密度30 cm×15 cm为最佳。The main nutrition obstacle factors of cold waterlogged paddy field were studied by field investigation, sampling soil and analysis in Southeasten Hubei. Suitable ridging specifications and planting density in cold waterlogged paddy field were studied through field experiment to provide technical support for improvements. The results showed that, compared with normal paddy field, the pH of cold waterlogged paddy field was higher, and the contents of organic matter, total nitrogen, total phosphorus and total potassium of cold waterlogged paddy field were basically identical with normal paddy field. The effective phosphorus and potassium were lower in cold waterlogged paddy field than normal paddy field, and they were main nutrient obstacle factor. Ridging could increase the rice yield obviously, and reasonable ridge height and width were 15 cm and 120 cm, respectively. The suitable planting density was 30 cm×15 cm.

关 键 词：冷浸稻田 养分特征 栽培 鄂东南 

分 类 号：S311[农业科学—作物栽培与耕作技术] S511[农业科学—农艺学]