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优劣距离法筛选育苗基质矿质养分浸提方法
引用本文:孙娇娇,尚庆茂.优劣距离法筛选育苗基质矿质养分浸提方法[J].中国蔬菜,2019,1(9):69-75.
作者姓名:孙娇娇  尚庆茂
作者单位:(农业农村部园艺作物生物学与种质创制重点实验室,中国农业科学院蔬菜花卉研究所,北京 100081)
基金项目:国家自然科学基金项目(31172001),国家现代农业产业
技术体系建设专项(CARS-25),公益性行业(农业)科研专项
(201303014),中国农业科学院科技创新工程项目(CAAS-ASTIPIVFCAAS),
现代农业人才支撑计划项目(2016)
摘    要:为了探索一种高效、简便、无污染的基质矿质养分浸提方法,以去离子水为浸提剂,研究固液比(m:m)、浸提温度、振荡时间3 个因素对育苗基质13 种矿质养分浸提效率的影响,结果表明:NO3--N、K 浸提效率最高的处理组合为固液比1:20、浸提温度50 ℃、振荡时间5 h;NH4+-N、P、Ca、Mg、S、Fe、Mn、Cu、Zn、Na、Cl 浸提效率最高的处理组合为固液比1:20、浸提温度50 ℃、振荡时间10 h;进一步建立优劣距离法模型,综合评判育苗基质13 种矿质养分浸提效率,筛选出综合浸提效率最优的处理组合,即固液比1:20、浸提温度50 ℃、振荡时间10 h。

关 键 词:优劣距离法  育苗基质  矿质养分  浸提方法  

TOPSIS for Screening Seedling Substrate Mineral Nutrient Extraction Method
SUN Jiao-Jiao,SHANG Qing-Mao.TOPSIS for Screening Seedling Substrate Mineral Nutrient Extraction Method[J].China Vegetables,2019,1(9):69-75.
Authors:SUN Jiao-Jiao  SHANG Qing-Mao
Institution:(Key Laboratory of Biology and Genetic Improvement of Horticultural Crops,Institute of Vegetables and Flowers,Chinese; Academy of Agricultural Sciences,Beijing 100081,China )
Abstract:In order to explore a high-efficient,simple and pollution-free mineral nutrient extraction method for substrate seedlings,this paper took deionized water as extractant,studied the effects of 3 factors including solid-liquid ratio (m:m),extraction temperature and oscillation time on 13 kinds of mineral nutrient extraction efficiency.The results showed that the treatment combination with the highestNO3--N and K extraction efficiency was solid-liquid ratio of 1:20,extraction temperature of 50 ℃,oscillation time of 5 hours,and the treatment combination with the highest extraction efficiency ofNH4+-N,P,Ca,Mg,S,Fe, Mn,Cu,Zn,Na and Cl was solid-liquid ratio of 1:20,extraction temperature of 50 ℃ and oscillation time of 10 hours.This paper further established TOPSIS model;comprehensively judged the extraction efficiency of 13 kinds of mineral nutrient;screened out the optimal treatment combination as solid-liquid ratio of 1∶20, extraction temperature of 50 ℃,and an oscillation time of 10 hours.
Keywords:TOPSIS  Seedling substrate  Mineral nutrient  Extraction method  
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