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Effects of mulching measures on soil moisture and N leaching potential in a spring maize planting system in the southern Loess Plateau
Dong Qiang1,2,3; Dang Tinghui1,2,3; Guo Shengli1,2,3; Hao Mingde1,2,3
2019-03-01
Source PublicationAGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
Volume213Pages:803-808
Corresponding AuthorDang Tinghui(dangth@ms.iswc.ac.cn)
AbstractA field experiment was conducted in the southern gully region of the Loess Plateau to study the effects of mulching measures on spring maize yield and nitrate accumulation in dryland areas under traditional tillage conditions. The study was performed to provide a scientific basis for spring maize planting and environmental protection in this area. The four treatments were non-mulching (CK), plastic film-mulching during the growth period (PM1), plastic film-mulching during the fallow period (PM2), and straw-mulching (JM). After 13 years of continuous application, the yield of spring maize, the nitrogen uptake by plants, and the nitrate nitrogen content at the harvest stage were measured. The results revealed that soil moisture content and water storage capacity of the three soil-mulching treatments were all higher than those of the non-mulching treatment. Soil water storage at a depth of 0-300 cm in the JM, PM1 and PM2 treatments was increased by 11.8%, 10.6% and 8.8%, respectively, compared with the CK treatment. Compared with the CK treatment, the mulching treatments significantly increased the aboveground biomass and grain yield of spring maize. The yield enhancement effect of the PM1 treatment was the most significant, with a yield of 1.1 Mg ha(-1) and an increase of 26.72%. In addition to the JM treatment, the accumulation of soil nitrate at a depth of 0-300 cm in the PM1 and PM2 treatments was less than that of the CK treatment, but the largest increase in soil nitrate (80.20% in the JM treatment) was observed at a depth of 0-100 cm. The results suggest that in the rainfed agriculture in the southern Loess Plateau, mulching cultivation can effectively increase the soil moisture content and water storage capacity. PM1, and PM2 treatments could significantly reduce the content and accumulation of nitrate nitrogen in the deeper soil profile, and the three mulching measures could slow down the deep accumulation of soil nitrate nitrogen to a certain extent.
KeywordSpring maize Straw-mulching Plastic film-mulching Nitrate nitrogen
DOI10.1016/j.agwat.2018.09.026
WOS KeywordWATER-USE EFFICIENCY ; ROOT DISTRIBUTION ; CARBON FRACTIONS ; ORGANIC-CARBON ; DRYLAND AREAS ; RIDGE-FURROW ; STRAW MULCH ; NITROGEN ; YIELD ; NITRATE
Indexed BySCI
Language英语
Funding ProjectNational key R&D Program of China[2016YFD0800105]
Funding OrganizationNational key R&D Program of China
WOS Research AreaAgriculture ; Water Resources
WOS SubjectAgronomy ; Water Resources
WOS IDWOS:000457952700076
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/49428
Collection中国科学院地理科学与资源研究所
Corresponding AuthorDang Tinghui
Affiliation1.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Dong Qiang,Dang Tinghui,Guo Shengli,et al. Effects of mulching measures on soil moisture and N leaching potential in a spring maize planting system in the southern Loess Plateau[J]. AGRICULTURAL WATER MANAGEMENT,2019,213:803-808.
APA Dong Qiang,Dang Tinghui,Guo Shengli,&Hao Mingde.(2019).Effects of mulching measures on soil moisture and N leaching potential in a spring maize planting system in the southern Loess Plateau.AGRICULTURAL WATER MANAGEMENT,213,803-808.
MLA Dong Qiang,et al."Effects of mulching measures on soil moisture and N leaching potential in a spring maize planting system in the southern Loess Plateau".AGRICULTURAL WATER MANAGEMENT 213(2019):803-808.
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