水氮耦合对温室砂培黄瓜基质水盐、氮运移及产量的影响

【目的】探究温室砂培黄瓜在不同水氮施用下的基质剖面水盐、氮的分布运移特征及黄瓜产量的差异。【方法】采用二次饱和D-最优设计进行了砂培黄瓜水氮耦合田间试验,试验共设7个处理,每个处理重复3次,每隔20 d测定各处理4个基质层的含水率、EC值、硝态氮量、铵态氮量,并统计了黄瓜产量,研究水氮耦合对温室砂培黄瓜基质剖面水盐、氮运移及黄瓜产量的影响。【结果】灌水水平是影响砂培基质含水率的主要因素,基质剖面上的水分分布表现出湿润峰明显向深层运移的趋势;膜下滴灌有“抑盐压盐”的作用,避免过量灌水施氮是防止基质盐分富集的有效措施;基质中的硝态氮和铵态氮总体上表现出易随水分迁移的特性,黄瓜根系对于铵态氮的吸收存...

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Published inGuanʻgai paishui xuebao Vol. 41; no. 5; pp. 34 - 44
Main Authors MA Xinchao, MA Guocai, WANG, Hairui, ZHANG Kaihao, YANG Hongji, GAO Yaning, WANG, Xufeng, Zhengying, XUAN
Format Journal Article
LanguageChinese
English
Published Xinxiang City Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage 01.05.2022
塔里木大学 园艺与林学学院,新疆 阿拉尔 843300
塔里木大学南疆特色果树高效优质栽培与深加工技术国家地方联合工程实验室,新疆 阿拉尔 843300%塔里木大学 分析测试中心,新疆 阿拉尔 843300%塔里木大学 水利与建筑工程学院,新疆 阿拉尔 843300%塔里木大学 机械电气化工程学院,新疆 阿拉尔 843300
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ISSN1672-3317
DOI10.13522/j.cnki.ggps.2021556

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Abstract 【目的】探究温室砂培黄瓜在不同水氮施用下的基质剖面水盐、氮的分布运移特征及黄瓜产量的差异。【方法】采用二次饱和D-最优设计进行了砂培黄瓜水氮耦合田间试验,试验共设7个处理,每个处理重复3次,每隔20 d测定各处理4个基质层的含水率、EC值、硝态氮量、铵态氮量,并统计了黄瓜产量,研究水氮耦合对温室砂培黄瓜基质剖面水盐、氮运移及黄瓜产量的影响。【结果】灌水水平是影响砂培基质含水率的主要因素,基质剖面上的水分分布表现出湿润峰明显向深层运移的趋势;膜下滴灌有“抑盐压盐”的作用,避免过量灌水施氮是防止基质盐分富集的有效措施;基质中的硝态氮和铵态氮总体上表现出易随水分迁移的特性,黄瓜根系对于铵态氮的吸收存在阈值;黄瓜产量随着灌水水平和施氮量的增加表现出先增加后降低的趋势,符合报酬递减规律。【结论】综合考虑基质剖面水盐、氮的分布运移、黄瓜产量及水氮投入等因素,本研究推荐的水氮耦合方案是灌水上下限设置为80.20%~89.40%、60%,施氮量控制在623~917 kg/hm2,能够保证黄瓜较好的生长环境、减少水分和氮素淋失风险、避免产生次生盐渍化危害、提高水肥利用效率和黄瓜产量,可为温室砂培黄瓜水肥一体化的推广提供理论依据。
AbstractList S626.5; [目的]探究温室砂培黄瓜在不同水氮施用下的基质剖面水盐、氮的分布运移特征及黄瓜产量的差异.[方法]采用二次饱和D-最优设计进行了砂培黄瓜水氮耦合田间试验,试验共设7个处理,每个处理重复3次,每隔20 d测定各处理4个基质层的含水率、EC值、硝态氮量、铵态氮量,并统计了黄瓜产量,研究水氮耦合对温室砂培黄瓜基质剖面水盐、氮运移及黄瓜产量的影响.[结果]灌水水平是影响砂培基质含水率的主要因素,基质剖面上的水分分布表现出湿润峰明显向深层运移的趋势;膜下滴灌有"抑盐压盐"的作用,避免过量灌水施氮是防止基质盐分富集的有效措施;基质中的硝态氮和铵态氮总体上表现出易随水分迁移的特性,黄瓜根系对于铵态氮的吸收存在阈值;黄瓜产量随着灌水水平和施氮量的增加表现出先增加后降低的趋势,符合报酬递减规律.[结论]综合考虑基质剖面水盐、氮的分布运移、黄瓜产量及水氮投入等因素,本研究推荐的水氮耦合方案是灌水上下限设置为80.20%~89.40%、60%,施氮量控制在623~917 kg/hm2,能够保证黄瓜较好的生长环境、减少水分和氮素淋失风险、避免产生次生盐渍化危害、提高水肥利用效率和黄瓜产量,可为温室砂培黄瓜水肥一体化的推广提供理论依据.
【目的】探究温室砂培黄瓜在不同水氮施用下的基质剖面水盐、氮的分布运移特征及黄瓜产量的差异。【方法】采用二次饱和D-最优设计进行了砂培黄瓜水氮耦合田间试验,试验共设7个处理,每个处理重复3次,每隔20 d测定各处理4个基质层的含水率、EC值、硝态氮量、铵态氮量,并统计了黄瓜产量,研究水氮耦合对温室砂培黄瓜基质剖面水盐、氮运移及黄瓜产量的影响。【结果】灌水水平是影响砂培基质含水率的主要因素,基质剖面上的水分分布表现出湿润峰明显向深层运移的趋势;膜下滴灌有“抑盐压盐”的作用,避免过量灌水施氮是防止基质盐分富集的有效措施;基质中的硝态氮和铵态氮总体上表现出易随水分迁移的特性,黄瓜根系对于铵态氮的吸收存在阈值;黄瓜产量随着灌水水平和施氮量的增加表现出先增加后降低的趋势,符合报酬递减规律。【结论】综合考虑基质剖面水盐、氮的分布运移、黄瓜产量及水氮投入等因素,本研究推荐的水氮耦合方案是灌水上下限设置为80.20%~89.40%、60%,施氮量控制在623~917 kg/hm2,能够保证黄瓜较好的生长环境、减少水分和氮素淋失风险、避免产生次生盐渍化危害、提高水肥利用效率和黄瓜产量,可为温室砂培黄瓜水肥一体化的推广提供理论依据。
Author WANG, Hairui
MA Guocai
ZHANG Kaihao
Zhengying, XUAN
YANG Hongji
GAO Yaning
MA Xinchao
WANG, Xufeng
AuthorAffiliation 塔里木大学 园艺与林学学院,新疆 阿拉尔 843300;塔里木大学南疆特色果树高效优质栽培与深加工技术国家地方联合工程实验室,新疆 阿拉尔 843300%塔里木大学 分析测试中心,新疆 阿拉尔 843300%塔里木大学 水利与建筑工程学院,新疆 阿拉尔 843300%塔里木大学 机械电气化工程学院,新疆 阿拉尔 843300
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铵态氮
产量
黄瓜
硝态氮
含水率
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PublicationTitle_FL Journal of Irrigation and Drainage
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塔里木大学 园艺与林学学院,新疆 阿拉尔 843300
塔里木大学南疆特色果树高效优质栽培与深加工技术国家地方联合工程实验室,新疆 阿拉尔 843300%塔里木大学 分析测试中心,新疆 阿拉尔 843300%塔里木大学 水利与建筑工程学院,新疆 阿拉尔 843300%塔里木大学 机械电气化工程学院,新疆 阿拉尔 843300
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Snippet 【目的】探究温室砂培黄瓜在不同水氮施用下的基质剖面水盐、氮的分布运移特征及黄瓜产量的差异。【方法】采用二次饱和D-最优设计进行了砂培黄瓜水氮耦合田间试验,试验共设7个处理,每个处理重复3次,每隔20...
S626.5; [目的]探究温室砂培黄瓜在不同水氮施用下的基质剖面水盐、氮的分布运移特征及黄瓜产量的差异.[方法]采用二次饱和D-最优设计进行了砂培黄瓜水氮耦合田间试验,试验共设7个处理,每个处理重复3次,每隔20...
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SubjectTerms Ammonium
Coupling
Crop production
Crop yield
Cucumbers
Fertilization
Greenhouses
Irrigation
Irrigation water
Leaching
Moisture content
Nitrogen
Risk reduction
Salinization
Salts
Soil moisture
Soil water movement
Vegetables
Water content
Water flow
Title 水氮耦合对温室砂培黄瓜基质水盐、氮运移及产量的影响
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