ISWC OpenIR  > 水保所科研产出--SCI  > 2018--SCI
Subsurface drip irrigation enhances soil nitrogen and phosphorus metabolism in tomato root zones and promotes tomato growth
Jingwei Wang1,4; Wenquan Niu1,2; Yuan Li1; Wang Lv5; Niu, WQ (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.
SubtypeArticle
2018
Source PublicationAPPLIED SOIL ECOLOGY
ISSN0929-1393
description.correspondentemailnwq@nwafu.edu.cn
Volume124Pages:240-251
AbstractTo understand the effects of subsurface drip irrigation (SDI) on soil microorganisms and the soil microbial mechanism underlying yield improvement, we performed field experiments to investigate the microbial community composition and function and the "soil-plant-microorganism" interactions in root zones. The results showed that the compositions of soil bacteria under surface drip irrigation with plastic film mulching (DI-PFM) and SDI were significantly different; the relative abundance of bacteria that metabolize organic matter was lower under SDI than under DI-PFM, but the relative abundance of nitrogen- and phosphorus-metabolizing bacteria was significantly higher under SDI than under DI-PFM. The depth of the drip irrigation tape was an important factor affecting soil microbes. With a drip irrigation tape depth of 20 cm, soil porosity and root growth were greatly improved, thus strengthening the "soil-plant-microorganism" interactions, as were the soil urease and phosphatase activities at the peak fruiting stage and the soil available nitrogen and phosphorus contents. Furthermore, the absorption and utilization of nitrogen and phosphorus by tomato were promoted; the total nitrogen and phosphorus contents in the tomato root were 1.18 and 1.47 times higher, respectively, than those under DI-PFM. Similarly, the total nitrogen and phosphorus contents in the tomato stem were 1.11 and 1.66 times higher, respectively. The tomato yield per plant was 22.47% higher than that under DI-PFM, while the contents of soluble protein, vitamin C and lycopene of the tomato fruit were also significantly increased, resulting in improved fruit quality. With a drip irrigation tape depth of 30 cm, tomato root length and forks were also remarkably improved, and nitrogen absorption by the tomato root was significantly enhanced. Although the tomato yield per plant was not significantly different from that with a drip irrigation tape depth of 20 cm, the soluble protein, vitamin C and lycopene contents of the tomato fruit were significantly decreased. Taken together, a drip irrigation tape depth of 20 cm is the most appropriate irrigation arrangement for tomato cultivation and production.
KeywordSubsurface Drip Irrigation Tape Depth Root-zone Soil Interaction Nitrogen And Phosphorus Metabolism Tomato
Subject AreaAgriculture
DOI10.1016/j.apsoil.2017.11.014
Indexed BySCI
Publication PlacePO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language英语
WOS IDWOS:000428331000030
PublisherELSEVIER SCIENCE BV
Funding OrganizationNational Key Research Project of China [2016YFC0400202] ; National Key Research Project of China [2016YFC0400202] ; Natural Science Foundation of China [51679205] ; Natural Science Foundation of China [51679205]
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8288
Collection水保所科研产出--SCI_2018--SCI
Corresponding AuthorNiu, WQ (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.
Affiliation1.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
3.MWR, Yangling 712100, Shaanxi, Peoples R China
4.Ctr Ecol Environm Construct Soil & Water Conserva, Taiyuan 030002, Shanxi, Peoples R China
5.Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Jingwei Wang,Wenquan Niu,Yuan Li,et al. Subsurface drip irrigation enhances soil nitrogen and phosphorus metabolism in tomato root zones and promotes tomato growth[J]. APPLIED SOIL ECOLOGY,2018,124:240-251.
APA Jingwei Wang,Wenquan Niu,Yuan Li,Wang Lv,&Niu, WQ .(2018).Subsurface drip irrigation enhances soil nitrogen and phosphorus metabolism in tomato root zones and promotes tomato growth.APPLIED SOIL ECOLOGY,124,240-251.
MLA Jingwei Wang,et al."Subsurface drip irrigation enhances soil nitrogen and phosphorus metabolism in tomato root zones and promotes tomato growth".APPLIED SOIL ECOLOGY 124(2018):240-251.
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