干旱区生态环境知识资源中心(Arid): Ammoniated straw incorporation coupled with N management synergistically enhanced soil structure and crop productivity in a desert oasis farmland

Arid

DOI	10.1002/ldr.4823
	Ammoniated straw incorporation coupled with N management synergistically enhanced soil structure and crop productivity in a desert oasis farmland
	Zhou, Lifeng; Chang, Wenlong; Yang, Rong; Feng, Hao; Yang, Qiliang
通讯作者	Yang, QL
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2023
卷号	34 期号:16 页码:4977-4989
英文摘要	Straw return is the simplest and the most economic method to improve soil structure. Slow decomposition rate limits straw return in sandy fields, which has becoming one of the obstacles in sandy land reclamation. Ammonification of straw before return accelerates straw decomposition, but it requires the use of extra N fertilizer, however, little is known about N fertilizer management in fields with ammoniated straw incorporation. So, a 3-year field experiment was conducted with different proportions of N fertilizer aimed to maize straw ammonification and field broadcasting, and evaluated straw decomposition proportion, straw N release, soil organic carbon content, soil aggregates, soil water and N availability, and grain yield. Total N application rate was 300 kg per hectare, with five N input amounts for straw per hectare ammonification: 0 (SN0), 40 (SN40), 80 (SN80), 120 (SN120), and 160 (SN160) kg, and the rest of N broadcasted in soil during maize growing season. Ammonification accelerated straw decomposition and N release, and these effects showed no significant difference between SN80, SN120, and SN160. After straw decomposition for 150 days, the decomposition proportion was 62.1%, 53.0%, and 39.2% in SN80, SN40, and SN0, respectively. After 3 years of straw return, SN80 exhibited a significantly higher mean weight diameter of soil aggregates (35.6% higher), organic carbon content (18.4% higher), water-holding capacity (17.4% higher), and soil water storage (17.2% higher) than SN0. Additionally, SN80 and SN120 showed the most significant effect on N slow-release in soil. The above effects resulted with more available soil water and N used for crop growth, and increased grain yields (18.1% higher) and water use efficiency (18.6% higher) in SN80, compared with SN0. Hence, we conclude that a proper N allocation between straw and soil can synergistically enhance soil structure and crop productivity in sandy farmlands. This founding would provide scientific and technological support for straw return in sandy fields and is beneficial to sustainable development of oasis.
英文关键词	C N ratio land reclamation sandy soil soil structure straw ammonification
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:001043556600001
WOS关键词	AGGREGATE STABILITY ; ORGANIC-CARBON ; AGRICULTURAL SOILS ; MICROBIAL BIOMASS ; DECOMPOSITION ; NITROGEN ; RESIDUE ; WATER ; DYNAMICS ; YIELD
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397759
推荐引用方式 GB/T 7714	Zhou, Lifeng,Chang, Wenlong,Yang, Rong,et al. Ammoniated straw incorporation coupled with N management synergistically enhanced soil structure and crop productivity in a desert oasis farmland[J],2023,34(16):4977-4989.
APA	Zhou, Lifeng,Chang, Wenlong,Yang, Rong,Feng, Hao,&Yang, Qiliang.(2023).Ammoniated straw incorporation coupled with N management synergistically enhanced soil structure and crop productivity in a desert oasis farmland.LAND DEGRADATION & DEVELOPMENT,34(16),4977-4989.
MLA	Zhou, Lifeng,et al."Ammoniated straw incorporation coupled with N management synergistically enhanced soil structure and crop productivity in a desert oasis farmland".LAND DEGRADATION & DEVELOPMENT 34.16(2023):4977-4989.