不同施肥模式对甘薯生长发育及高产生理特性的影响  

Effects of Different Fertilizing Patterns on Development and High-yielding Physiological Characteristics of Sweet Potato

作　　者：辛国胜[1] 林祖军[1] 韩俊杰[1] 刘志坚[1] 商丽丽[1] 刘述河 潘少丽[2] 郭征华 

机构地区：[1]烟台市农业科学研究院甘薯研究所,山东烟台265500 [2]莱阳市农业监察大队,山东莱阳265200 [3]蓬莱市农业局,山东蓬莱265600

出　　处：《山东农业科学》2009年第11期65-68,共4页Shandong Agricultural Sciences

基　　金：农业部公益性行业(农业)科研专项项目(nyhyzx07-012-06);山东省科技厅农业良种产业化资助项目;国家863计划(2006AA100107)课题

摘　　要：分层施肥是在配方施肥的基础上根据甘薯不同生育期的需肥特点进行养分供给,其增产效果好于配方施肥和普通施肥,高产机理在于通过增加光合面积、提高净同化率、改善光合产物分配来提高经济产量。Based on balanced fertilization,separated-layer fertilization could provide nutrients for sweet potato according to the fertilizer requirement in different growth period,so its effect on increasing the root yield was better than balanced fertilization and conventional fertilization.Its high-yielding mechanism was the increase of photosynthetic area and net assimilation rate and the improvement on the regulation of photosynthates.

关 键 词：分层施肥 甘薯 高产栽培 生理特性 

分 类 号：S531.01[农业科学—作物学]