Response of labile organic C and N pools to plastic film removal from semiarid farmland soil

doi:10.1111/sum.12292

	Response of labile organic C and N pools to plastic film removal from semiarid farmland soil
	Luo, SS; Zhu, L; Liu, JL; Bu, LD; Yue, SC; Shen, YF; Li, SQ; Li, SQ (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
刊名	SOIL USE AND MANAGEMENT
	2016
卷号	32 期号:4 页码:535-542
关键词	Plastic Film Mulching Plastic Film Removal Labile Soil Organic Matte c Management Index Spring Maize
DOI	10.1111/sum.12292
产权排序	4
文献子类	Article
英文摘要	To examine the effects of plastic film removal on grain yield and soil organic matter (SOM), a spring maize (Zea may L.) field experiment was conducted for 5 yr at Changwu Agricultural and Ecological Experimental Station of Northwest China. Compared with traditional plastic film mulching during entire growing stages (FM), plastic film removal at the silking stage (RM) resulted in a 6.3% higher average maize yield. Under the RM treatment, soil organic carbon and total nitrogen significantly increased after the 5-yr cultivation in the 0- to 20-cm layer. Significant increases in extractable organic C (EOC), KMnO4-oxidizable C (KMnO4-C) and C management index (CMI) in the 0- to 20-cm layer, and light fraction organic C and EOC in the 20- to 40-cm layer were observed in response to plastic film removal after the 1-yr treatment; the responses were more significant after 5 yr. Under the RM treatment, significant increases in microbial biomass C, light fraction organic N, extractable organic N, KMnO4-C and CMI were also observed after five years in the 20- to 40-cm layer. Moreover, KMnO4-C and EOC were much more sensitive than other labile SOM fractions to the application of RM, even after only 1 yr of cultivation. Therefore, compared with mulching for the whole growing season, plastic film removal at the maize silking stage is an effective option for increasing yields and enhancing SOM concentration and soil sustainability in the regions with semiarid monsoon climates that have sufficient rainfall during maize reproductive stages.
学科主题	Agriculture
语种	英语
资助机构	National Natural Science Foundation of China [31270553, 51279197] ; National Natural Science Foundation of China [31270553, 51279197] ; Ministry of Science and Technology of China [2015CB150402] ; Ministry of Science and Technology of China [2015CB150402] ; Special Fund for Agricultural Profession [201103003] ; Special Fund for Agricultural Profession [201103003] ; Fundamental Research Funds for the Central Universities [YQ2013009] ; Fundamental Research Funds for the Central Universities [YQ2013009] ; National Natural Science Foundation of China [31270553, 51279197] ; National Natural Science Foundation of China [31270553, 51279197] ; Ministry of Science and Technology of China [2015CB150402] ; Ministry of Science and Technology of China [2015CB150402] ; Special Fund for Agricultural Profession [201103003] ; Special Fund for Agricultural Profession [201103003] ; Fundamental Research Funds for the Central Universities [YQ2013009] ; Fundamental Research Funds for the Central Universities [YQ2013009]
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/28086]
专题	成都生物研究所_生态研究
通讯作者	Li, SQ (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
推荐引用方式 GB/T 7714	Luo, SS,Zhu, L,Liu, JL,et al. Response of labile organic C and N pools to plastic film removal from semiarid farmland soil[J]. SOIL USE AND MANAGEMENT,2016,32(4):535-542.
APA	Luo, SS.,Zhu, L.,Liu, JL.,Bu, LD.,Yue, SC.,...&Li, SQ .(2016).Response of labile organic C and N pools to plastic film removal from semiarid farmland soil.SOIL USE AND MANAGEMENT,32(4),535-542.
MLA	Luo, SS,et al."Response of labile organic C and N pools to plastic film removal from semiarid farmland soil".SOIL USE AND MANAGEMENT 32.4(2016):535-542.