长期不同施磷水平下甜玉米生长和养分吸收规律研究

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关键词磷水平；甜玉米；养分吸收；生长发育中图分类号S513文献标识码A文章编号 0517-6611（2025）16-0153-07doi： 10.3969/j.issn.0517-6611.2025.16.034

AbstractObeie]Toexplorethsofdierntposposvelsonhgowdutrentbotiooftodtroe atheoreticalbasisfoationalfertlationofeetoiaioninacidcsoil.MetdSettoertiliionlvels，igsps （ 120kg/hm2 ）and low phosphorus （ 30kg/hm2 ）.The plant dry weight，root traits，plant nutrient content，yield and rhizosphere soil related indexes were easredat1，23，45and58daysfterazetraspantigResultighohors ratmenticreasdthedye lation of sweet corn by an average of 78.07% ，the root development by an average of 58.62% ，and the absorption of phosphorus nutrients at the dough stage by an average of 86.39% .The jointing stage to the blister stage is the peak period of growth and nutrient absorption.Root recession underlowphospoustreatentafectedutrientuptakendicatigtattesponseofieotstolowosphorusstressaybethean reasonfortheesposeofeetaetowospous.Coclusio]osphousdefciecysignificantlyiibitedootdevelopntadutrientuptakeofsespallohdfgetostentaItisssraf phosphorus fertilizer reasonablyinthis growth stage to cordinate the nutrient acquisitionand plant developmentof maize.

Key wordsPhosphorus level;Sweet corn;Nutrient absorption;Growth and development

磷是植物生长发育必需的大量元素之一，磷肥是保障作物高产稳产的肥料三要素之一[1]。（剩余13179字）