Effects of straw mulching and plastic film mulching on improving soil organic carbon and nitrogen fractions, crop yield and water use efficiency in the Loess Plateau, China

doi:10.1016/j.agwat.2018.01.021

	Effects of straw mulching and plastic film mulching on improving soil organic carbon and nitrogen fractions, crop yield and water use efficiency in the Loess Plateau, China
	Dong, Qin'ge 1,2,3; Yang, Yuchen 4; Yu, Kun 1,3,5; Feng, Hao 1,2,3
刊名	AGRICULTURAL WATER MANAGEMENT
	2018-03-31
卷号	201 页码:133-143
关键词	Straw mulching Plastic film mulching Soil organic carbon Labile soil organic carbon Labile soil organic nitrogen Water use efficiency
ISSN号	0378-3774
DOI	10.1016/j.agwat.2018.01.021
通讯作者	Feng, Hao(nercwsi@vip.sina.com)
英文摘要	A field experiment was conducted in the Loess Plateau of Northwest China to study the effects of plastic film mulching and straw mulching on soil water, soil organic carbon (SOC), total nitrogen (TN), microbial biomass carbon (MBC) and nitrogen (MBN), dissolved organic carbon (DOC) and nitrogen (DON), crop yield and water use efficiency under winter wheat (Tricicwn aestivum L.)-summer maize (Zea mays L.) double-cropping system conditions using the following three cultural practices: (i) traditional plough with no mulching (CK), (ii) traditional plough with plastic film mulching (PM), and (iii) traditional plough with straw mulching (SM). Soil water contents were measured by the gravimetric method. SOC was determined using the dichromate oxidation method. TN was analyzed by the Kjeldahl method. MBC and MBN were determined using the chloroform fumigation extraction method. DOC and TDN were determined following Jones' procedures proposed by Jones and Willett (2006). The results showed that soil water was higher under the PM treatment than under the SM treatment and mainly changed in the upper 60 cm soil layer. Compared with the CK treatment, the concentrations of SOC and TN under the SM treatment were increased by 16.9% and 7.7% at the 0-10 cm soil depth, respectively, and the PM treatment had the similar SOC and TN concentrations. Compared with the CK treatment, soil C:N ratio was increased under the SM treatment by 6.2% (P < 0.05), and that under the PM treatment was decreased by 5.2% (P < 0.05) after three years. The concentrations of MBC under the PM and SM treatments were significantly increased by 42.0% and 24.1%, respectively, and MBN under the PM treatment was significantly increased by 5.6% at 0-10 cm soil depth after the maize season. Compared with the CK treatment, DOC was significantly increased by 21.0% under the SM treatment and decreased by 13.1% under the PM treatment, and DON was significantly increased by 10.5% under the SM treatment and decreased by 4.3% under the PM treatment at the 0-10 cm soil depth after the maize season. Relative changes of labile soil organic carbon and nitrogen fractions were more sensitive than that of SOC and TN. The relative decline or increase of labile soil organic carbon and nitrogen fractions was on average almost 13.6% for the mulching practices. Compared with the CK treatment, the average maize yields under the PM and SM treatments were increased by 26.4% and 9.8%, and the average wheat yields under the PM and SM treatments were increased by 21.3% and 7.4%, respectively. The average water use efficiencies under the PM and SM treatments were 24.5%, 8.8% in winter wheat and 22.9%, 6.3% in summer maize higher than that under the CK treatment, respectively. Our results suggested that plastic film mulching could be used as an effective practice to improve low soil quality with adequate nitrogen and increase crop yield and water use efficiency in the Loess Plateau, China.
资助项目	National High Technology Research and Development Program of China[2013AA102904] ; National Natural Science Foundation of China[51609237] ; 111 Project of the Ministry of Education ; State Administration of Foreign Experts Affairs[B12007]
WOS关键词	ZEA-MAYS L. ; MANAGEMENT-PRACTICES ; SEMIARID AGROECOSYSTEM ; STUBBLE MANAGEMENT ; AGRICULTURAL SOILS ; MATTER FRACTIONS ; MAIZE GROWTH ; WHEAT ; TILLAGE ; DYNAMICS
WOS研究方向	Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000429630800014
资助机构	National High Technology Research and Development Program of China ; National Natural Science Foundation of China ; 111 Project of the Ministry of Education ; State Administration of Foreign Experts Affairs
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/60246]
专题	中国科学院地理科学与资源研究所
通讯作者	Feng, Hao
作者单位	1.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Peoples R China 3.Northwest A&F Univ, Inst Water Saving Agr Arid Areas China, Yangling 712100, Peoples R China 4.Northwest A&F Univ, Coll Chem & Pharm, Yangling 712100, Peoples R China 5.Northwest A&F Univ, Coll Water Resource & Architectural Engn, Yangling 712100, Peoples R China
推荐引用方式 GB/T 7714	Dong, Qin'ge,Yang, Yuchen,Yu, Kun,et al. Effects of straw mulching and plastic film mulching on improving soil organic carbon and nitrogen fractions, crop yield and water use efficiency in the Loess Plateau, China[J]. AGRICULTURAL WATER MANAGEMENT,2018,201:133-143.
APA	Dong, Qin'ge,Yang, Yuchen,Yu, Kun,&Feng, Hao.(2018).Effects of straw mulching and plastic film mulching on improving soil organic carbon and nitrogen fractions, crop yield and water use efficiency in the Loess Plateau, China.AGRICULTURAL WATER MANAGEMENT,201,133-143.
MLA	Dong, Qin'ge,et al."Effects of straw mulching and plastic film mulching on improving soil organic carbon and nitrogen fractions, crop yield and water use efficiency in the Loess Plateau, China".AGRICULTURAL WATER MANAGEMENT 201(2018):133-143.