作　　者： ; ; ; ; ; ;

机构地区： 华南农业大学农学院

出　　处： 《灌溉排水学报》 2010年第2期85-88,共4页

摘　　要： 研究了不同灌水量对精量穴直播水稻培杂泰丰(超级杂交稻)和玉香油占(超级常规稻)2个水稻品种各个生育期根系生理特征的影响,并与移栽常规灌溉进行了比较。结果表明,精量穴直播湿润灌溉在相对于精量穴直播常规灌溉节水23.51%、相对于移栽常规灌溉节水30.46%的情况下,从孕穗期开始精量穴直播湿润灌溉处理根系的每株总根长、每株根总表面积、平均直径、每株根总体积、每株根尖数、根系伤流量和土壤氧化还原电位都明显高于精量穴常规灌溉处理和移栽常规灌溉处理。 This paper studies the effect of different water amounts on the physiological characteristics of the roots of precision hill-direct-seeding super rice that Yuxiangyouzhan（super inbred rice）and Peizataifeng（super hybrid rice）,and compare with transplanting conventional irrigation.The results showed that： although the water amounts of precision hill-direct-seeding sub irrigation less than that of precision hill-direct-seeding conventional irrigation by 23.51%,and less than that of transplanting conventional irrigation by 30.46%,the length、surface、average diameter、volume、tips and bleeding amount of roots and soil Eh are larger than that of precision hill-direct-seeding conventional irrigation and transplanting conventional irrigation starting from the booting stage.

关 键 词： 精量穴直播 超级稻 湿润灌溉 根系

领　　域： [农业科学] [农业科学]