灌水量和种植密度对干热河谷洋葱生物量及养分吸收利用的影响

【目的】揭示干热河谷水分和密度管理模式的洋葱营养策略和节水减肥增产增效机制。【方法】以黄洋葱为研究对象,设置了3种灌水量(高水:7 000 m3/hm2;中水:4 550 m3/hm2;低水:3 300 m3/hm2)和2个种植密度(高密度:22.12 万株/hm2;低密度:11.88 万株/hm2),研究其对洋葱生物量、抽薹率、养分吸收利用效率及水分利用效率(WUE)的影响。【结果】灌水量对洋葱WUE和养分吸收利用效率有显著影响,高水处理洋葱具有最高的P、K、Mg吸收效率,低水处理洋葱具有最高的P、K、Mg利用效率和水分利用效率优势。种植密度对洋葱生物量、抽薹率和养分吸收利用效率有显著影响,...

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Published inGuanʻgai paishui xuebao Vol. 40; no. 10; pp. 71 - 78
Main Author LI Jiancha
Format Journal Article
LanguageChinese
Published Xinxiang City Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage 01.10.2021
云南省农业科学院 热区生态农业研究所,云南元谋 651300%云南省水利水电科学研究院,昆明 650228
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ISSN1672-3317
DOI10.13522/j.cnki.ggps.2020688

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Abstract 【目的】揭示干热河谷水分和密度管理模式的洋葱营养策略和节水减肥增产增效机制。【方法】以黄洋葱为研究对象,设置了3种灌水量(高水:7 000 m3/hm2;中水:4 550 m3/hm2;低水:3 300 m3/hm2)和2个种植密度(高密度:22.12 万株/hm2;低密度:11.88 万株/hm2),研究其对洋葱生物量、抽薹率、养分吸收利用效率及水分利用效率(WUE)的影响。【结果】灌水量对洋葱WUE和养分吸收利用效率有显著影响,高水处理洋葱具有最高的P、K、Mg吸收效率,低水处理洋葱具有最高的P、K、Mg利用效率和水分利用效率优势。种植密度对洋葱生物量、抽薹率和养分吸收利用效率有显著影响,高密度处理洋葱具有最高N、P、Mg吸收效率;低密度处理洋葱具有最高的N、P、Mg利用效率、生物量和最低抽薹率优势。灌水量与种植密度对洋葱生物量、抽薹率、WUE、养分吸收利用效率及收获指数有明显互作效应;高水高密度处理洋葱N、P、K、Ca、Mg吸收效率显著最高;低水低密度处理洋葱WUE、N、P、K收获指数和Mg利用效率显著最高,抽薹率显著最低,且低水低密度主成分分析综合得分最高。【结论】干热河谷洋葱最佳灌水量和种植密度组合为低水低密度模式。
AbstractList Q945.79; [目的]揭示干热河谷水分和密度管理模式的洋葱营养策略和节水减肥增产增效机制.[方法]以黄洋葱为研究对象,设置了3种灌水量(高水:7000 m3/hm2;中水:4550 m3/hm2;低水:3300 m3/hm2)和2个种植密度(高密度:22.12万株/hm2;低密度:11.88万株/hm2),研究其对洋葱生物量、抽薹率、养分吸收利用效率及水分利用效率(WUE)的影响.[结果]灌水量对洋葱WUE和养分吸收利用效率有显著影响,高水处理洋葱具有最高的P、K、Mg吸收效率,低水处理洋葱具有最高的P、K、Mg利用效率和水分利用效率优势.种植密度对洋葱生物量、抽薹率和养分吸收利用效率有显著影响,高密度处理洋葱具有最高N、P、Mg吸收效率;低密度处理洋葱具有最高的N、P、Mg利用效率、生物量和最低抽薹率优势.灌水量与种植密度对洋葱生物量、抽薹率、WUE、养分吸收利用效率及收获指数有明显互作效应;高水高密度处理洋葱N、P、K、Ca、Mg吸收效率显著最高;低水低密度处理洋葱WUE、N、P、K收获指数和Mg利用效率显著最高,抽薹率显著最低,且低水低密度主成分分析综合得分最高.[结论]干热河谷洋葱最佳灌水量和种植密度组合为低水低密度模式.
【目的】揭示干热河谷水分和密度管理模式的洋葱营养策略和节水减肥增产增效机制。【方法】以黄洋葱为研究对象,设置了3种灌水量(高水:7 000 m3/hm2;中水:4 550 m3/hm2;低水:3 300 m3/hm2)和2个种植密度(高密度:22.12 万株/hm2;低密度:11.88 万株/hm2),研究其对洋葱生物量、抽薹率、养分吸收利用效率及水分利用效率(WUE)的影响。【结果】灌水量对洋葱WUE和养分吸收利用效率有显著影响,高水处理洋葱具有最高的P、K、Mg吸收效率,低水处理洋葱具有最高的P、K、Mg利用效率和水分利用效率优势。种植密度对洋葱生物量、抽薹率和养分吸收利用效率有显著影响,高密度处理洋葱具有最高N、P、Mg吸收效率;低密度处理洋葱具有最高的N、P、Mg利用效率、生物量和最低抽薹率优势。灌水量与种植密度对洋葱生物量、抽薹率、WUE、养分吸收利用效率及收获指数有明显互作效应;高水高密度处理洋葱N、P、K、Ca、Mg吸收效率显著最高;低水低密度处理洋葱WUE、N、P、K收获指数和Mg利用效率显著最高,抽薹率显著最低,且低水低密度主成分分析综合得分最高。【结论】干热河谷洋葱最佳灌水量和种植密度组合为低水低密度模式。
Author LI Jiancha
AuthorAffiliation 云南省农业科学院 热区生态农业研究所,云南元谋 651300%云南省水利水电科学研究院,昆明 650228
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Author_FL SUN Yi
PAN Zhixian
HE Runlian
WANG Yandan
LI Kun
LI Jiancha
ZHANG Lei
SHI Liangtao
FANG Haidong
YUE Xuewen
HE Guangxiong
DUAN Qicai
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  fullname: SUN Yi
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Copyright Copyright Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage 2021
Copyright © Wanfang Data Co. Ltd. All Rights Reserved.
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云南省农业科学院 热区生态农业研究所,云南元谋 651300%云南省水利水电科学研究院,昆明 650228
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Snippet 【目的】揭示干热河谷水分和密度管理模式的洋葱营养策略和节水减肥增产增效机制。【方法】以黄洋葱为研究对象,设置了3种灌水量(高水:7 000 m3/hm2;中水:4 550 m3/hm2;低...
Q945.79; [目的]揭示干热河谷水分和密度管理模式的洋葱营养策略和节水减肥增产增效机制.[方法]以黄洋葱为研究对象,设置了3种灌水量(高水:7000 m3/hm2;中水:4550 m3/hm2;低...
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SubjectTerms Abiotic factors
Absorption
Aridity
Biomass
Bolting
Crop yield
Crops
Efficiency
Irrigation
Irrigation effects
Irrigation efficiency
Nutrient uptake
Nutrient utilization
Onions
Planting
Planting density
Principal components analysis
Utilization
Vegetables
Water use
Water use efficiency
Title 灌水量和种植密度对干热河谷洋葱生物量及养分吸收利用的影响
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