摘要
[目的]探讨氨基酸水溶肥对枇杷生长及养分吸收的影响.[方法]以1 a生'大五星'幼苗(Eriobotrya japonica L.)为试材,喷施稀释0(对照,蒸馏水)、50、100、150和200倍的氨基酸水溶肥,测定相关生理指标.[结果]氨基酸水溶肥增加了枇杷幼苗的生物量,且100倍时枇杷幼苗根系和地上部生物量最大,分别较对照增加了21.45％和44.41％.氨基酸水溶肥提高了枇杷幼苗全氮、全磷和全钾含量,且100倍时枇杷幼苗地上部全氮和全磷含量最高,分别较对照提高了70.01％和32.49％;150倍时地上部全钾含量最高,较对照提高了36.44％.相关分析和灰色关联度分析表明,枇杷幼苗全氮、全磷和全钾含量与生物量密切相关,表明氨基酸水溶肥促进枇杷幼苗吸收养分进而促进幼苗生长.[结论]氨基酸水溶肥可有效促进枇杷幼苗的生长和养分吸收,并以稀释100倍时效果最佳.
Abstract
[Objective]To explore the effects of amino acid water-soluble fertilizer on the growth and nu-trient absorption of loquat.[Method]Using one-year seedlings of'Dawuxing'(Eriobotrya japonica L.)as experimental materials,spray amino acid water-soluble fertilizers diluted 0(control,distilled wa-ter),50,100,150,and 200 times,and measure relevant physiological indicators.[Result]Amino acid water-soluble fertilizer increased the biomass of loquat seedlings,And the root and aboveground bio-mass of loquat seedlings were the highest at 100 times,increasing by 21.45％and 44.41％respectively compared to the control.Amino acid water-soluble fertilizer increased the total nitrogen,total phospho-rus,and total potassium content of loquat seedlings,and the total nitrogen and total phosphorus content in the aboveground part of loquat seedlings were the highest at 100 times,increasing by 70.01％and 32.49％respectively compared to the control;When the amino acid water-soluble fertilizer was 150 times,the total potassium content in the aboveground part of loquat seedlings was the highest,which in-creased by 36.44％compared to the control.Correlation analysis and grey correlation analysis indicated that the total nitrogen,total phosphorus,and total potassium contents of loquat seedlings were closely re-lated to biomass,indicating that amino acid water-soluble fertilizer promoted nutrient absorption and growth of loquat seedlings.[Conclusion]Amino acid water-soluble fertilizer can effectively promote the growth and nutrient absorption of loquat seedlings,and the best dilution ratio is 100 times.
基金项目
四川省科技支撑计划 "十四五"育种攻关项目(2021YFYZ0023-07)
国家现代化农业产业技术体系四川水果创新团队项目(SCCXTD-2022-04)
NETL
NSTL
维普
万方数据