叶面配比施肥对树番茄苗木生长及非结构性碳水化合物的影响  

Effect of foliar fertilization with variable ration on seeding growth and non-structural carbohydrates of Cyphomandra betacea

作　　者：李兴则 韦兴兰 曾惠平 董琼 LI Xing-ze;WEI Xing-lan;ZENG Hui-ping;DONG Qiong(College of Forestry,Southwest Forestry University,Kunming 650224,China;Key Laboratory of Southwest Biodiversity Conservation,State Forestry and Grassland Administration,Southwest Forestry University,Kunming 650224,China)

机构地区：[1]西南林业大学林学院,昆明650224 [2]西南林业大学西南地区生物多样性保育国家林业和草原局重点试验室,昆明650224

出　　处：《西南农业学报》2024年第12期2765-2774,共10页Southwest China Journal of Agricultural Sciences

基　　金：云南省教育厅科学研究基金资助项目(2024Y576);云南省重大科技专项(202102AE090132);云南省“三区”科技人才支持计划(990023236)。

摘　　要：【目的】探讨树番茄苗木生长及非结构性碳水化合物对不同浓度叶面配比施肥的响应。【方法】以1年生树番茄苗木为研究对象,采用尿素[CO(NH_(2))_(2)]、过磷酸钙[Ca(H_(2)PO4)_(2)·H_(2)O]、硫酸钾(K_(2)SO_(4))_(3)种肥料进行L_(9)(3^(4))正交试验设计,共9个处理,以不施肥处理为对照,比较1年生树番茄苗木在不同N、P、K配施水平下生物量、根系形态及非结构性碳水化合物(NSCs)的响应,并运用相关性分析及隶属函数模糊综合评价法进行综合评价。【结果】与处理CK相比,叶面配比施肥能显著促进树番茄苗木生长与养分积累。其苗高、地径、各器官生物量及苗木质量指数均在处理S5(N2P2K3)效果最佳,且显著高于处理CK(P<0.05);处理S9(N3P3K2)对树番茄苗木根系形态发育效果最佳;不同施肥处理对树番茄苗木各器官中NSCs及其组分含量均有正向促进作用,对根和茎中可溶性糖和淀粉含量均有显著影响(P<0.05),且能有效促进茎、叶中可溶性糖向淀粉转化。【结论】叶面配比施肥能有效促进树番茄苗木生长发育,提高苗木质量,增加各器官中非结构性碳含量。模糊综合分析表明,在9种配比施肥处理中,处理S9(N3P3K2)对树番茄苗木生长和非结构性碳含量促进作用最显著。[Objective]The study aimed to investigate the growth of Cyphomandra betacea seedlings and the response of non-structural carbo-hydrates to different concentrations of foliar ration fertilizer application.[Method]One year old c.betacea seedlings were used for the study with urea[CO(NH_(2))_(2)],calcium superphosphate[Ca(H_(2)PO4)_(2)·H_(2)O] and potassum sulphate(K_(2)SO_(4))_(3) ferilizers in an L(34)or-thogonal experimental design with nine treatments,and non-fertilizer treatment as the control,the biomass,root morphology and non-structural carbohydrates(NSCs)of one-year old C.betacea seedlings under different N,P,and K dosing levels were compared and they were cowered out by the method of correlation analysis and affiliation function fuzzy comprehensive evaluation.[Result]Compared with CK treatment,foliar ration application significantly promoted the growth and nutrient accumulation of C.betacea seedlings.Its seedling height,diameter,biomass of various organs and seedling quality index were all best with S5(N2P2K3)treatment,with significantly higher than that of the control treat-ment(P<0.05,the same as below);S9(N3P3K2)treatment had the best effect on the root morphology development of C.betacea seed-lings;the different fertilizer treatments had a positive effect on the NSCs content and their components in various organs of C.betacea seed-lings,and had a significant effect on the content of soluble sugars and starch in roots and stems,which could effectively promote the growth and nutrient accumulation of C.betacea seedlings.The different fertilization treatments had a positive effect on the content of NSCs and their components in all organs of C.betacea seedlings,and had a significant effect on the content of soluble sugars and starch in roots and stems,and effectively promoted the conversion of soluble sugars to starch in stems and leaves:[Conclusion]Foliar ration fertilization promotes the biomass accumulation of C.betacea seedlings,improves the quality of seedlings,and promotes the accumulation of non-str

关 键 词：树番茄 叶面配比施肥 生长 非结构性碳 

分 类 号：S312[农业科学—作物栽培与耕作技术]