干旱区生态环境知识资源中心(Arid): Subsoiling depth affects the morphological and physiological traits of roots in film-mulched and drip-irrigated cotton

Arid

DOI	10.1016/j.still.2023.105826
	Subsoiling depth affects the morphological and physiological traits of roots in film-mulched and drip-irrigated cotton
	Guo, Rensong; Zhang, Na; Wang, Liang; Lin, Tao; Zheng, Zipiao; Cui, Jianping; Tian, Liwen
通讯作者	Cui, JP ; Tian, LW
来源期刊	SOIL & TILLAGE RESEARCH
ISSN	0167-1987
EISSN	1879-3444
出版年	2023
卷号	234
英文摘要	Subsoil compaction is increasingly a problem. Subsoiling breaks up the soil, removes compaction, and improves root growth. However, it is unclear whether subsoiling depth affects root growth and physiological functioning of film-mulched and drip-irrigated cotton, which has a shallow root system (< 60 cm). A 2-year experiment (2019-2020) was performed under field conditions (soil texture was sandy loam from 0 to 40 cm and clay loam from 40 to 60 cm) to determine the morphological and physiological traits of the root system at different subsoiling depths: no subsoiling (NS, control) and subsoiling to 30 (S30), 40 (S40), and 50 (S50) cm. The root/shoot ratios were significantly higher for the S30 and S40 treatments than for the control (p < 0.05). The dry matter levels over the 2 years were 24.2% higher in S40 plants than in controls and 20.7% higher than in the others subsoiling treatments. The average 2-year yields (676.9 g m-2) were 24.3%, 11.9%, and 1.4% higher in S40 plants than in controls, S30, and S50 plants. At different soil depths of 0-60 cm, the average 2-year root length density (RLD) of all subsoiling treatments was 0.5 cm cm-3 in the top 20 cm of soil, 14.0% higher than that from 20 to 40 cm and 344.2% higher than that from 40 to 60 cm. However, RLDs of the NS and S30 treatments were highest at 0-20 cm, while S40 and S50 maximum RLDs were in the 20-40 cm layers. The RLD, average diameter of roots, and surface area density of roots were significantly higher in the S40 and S50 treatments than in the S30 and NS treatments (p < 0.05). Compared to NS, subsoiling reduced the levels of malondialdehyde and abscisic acid in roots; improved superoxide dismutase, peroxidase, and catalase activities in roots, and increased the levels of gibberellic acid and indole-3-acetic acid in roots. Our results provide evidence that could help optimize subsoiling depth in film mulching and drip-irrigated cotton in Xinjiang.
英文关键词	Endogenous hormones Enzyme activity Gossypium hirsutum Oasis agriculture Root shoot ratio Root length density
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001046518500001
WOS关键词	SANDY LOAM SOIL ; CROP YIELD ; MECHANICAL IMPEDANCE ; DEEP TILLAGE ; MAIZE YIELD ; GRAIN-YIELD ; NO-TILLAGE ; GROWTH ; COMPACTION ; RESISTANCE
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398672
推荐引用方式 GB/T 7714	Guo, Rensong,Zhang, Na,Wang, Liang,et al. Subsoiling depth affects the morphological and physiological traits of roots in film-mulched and drip-irrigated cotton[J],2023,234.
APA	Guo, Rensong.,Zhang, Na.,Wang, Liang.,Lin, Tao.,Zheng, Zipiao.,...&Tian, Liwen.(2023).Subsoiling depth affects the morphological and physiological traits of roots in film-mulched and drip-irrigated cotton.SOIL & TILLAGE RESEARCH,234.
MLA	Guo, Rensong,et al."Subsoiling depth affects the morphological and physiological traits of roots in film-mulched and drip-irrigated cotton".SOIL & TILLAGE RESEARCH 234(2023).