干旱区生态环境知识资源中心(Arid): Combining Desulfurisation Gypsum and Polyacrylamide to Reduce Soil Salinity and Promote Buckwheat Photosynthesis

Arid

DOI	10.1111/jac.12727
	Combining Desulfurisation Gypsum and Polyacrylamide to Reduce Soil Salinity and Promote Buckwheat Photosynthesis
	Tao, Wanghai; Zhao, Xue; Ning, Songrui; Ji, Meiyue; Wang, Quanjiu
通讯作者	Tao, WH
来源期刊	JOURNAL OF AGRONOMY AND CROP SCIENCE
ISSN	0931-2250
EISSN	1439-037X
出版年	2024
卷号	210 期号:4
英文摘要	Soil salinisation poses a significant threat to global agricultural production and food security. China is among the countries most severely impacted by soil salinisation. To investigate the improvement technology for saline-alkali stress in buckwheat, a typical multigrain crop in northwest China, a coupling regulation study using desulfurisation gypsum and polyacrylamide (PAM) was conducted in 2019 and 2020. Desulfurisation gypsum was applied at 0, 5.5, 11, 16.5 and 22 kgha-1, while PAM was applied at 0, 15, 30, 45 and 60 kgha-1. The results demonstrated that applying 11 tha-1 desulfurisation gypsum and 30 kgha-1 PAM effectively reduces soil salinity and pH, averaging 81.79% and 6.07%, respectively. Furthermore, it did not cause soil heavy metal pollution and created the best soil environment for buckwheat growth. Among the models tested, the nonrectangular hyperbolic model was the most accurate in describing buckwheat's photosynthetic light response. The optimal treatment for achieving the best photosynthetic performance-measured by apparent quantum efficiency, maximum net photosynthetic rate, light compensation point, light saturation point, dark respiration rate, stomatal conductance, intercellular CO2 concentration, transpiration rate, leaf water use efficiency and yield-was achieved through applying 11 tha-1 desulfurisation gypsum and 30 kgha-1 PAM. Therefore, desulfurised gypsum and PAM should be applied at 11 tha-1 and 30 kgha-1, respectively, to improve buckwheat's adaptability to different light intensities while promoting its photosynthetic response in saline-alkali soils. This study provides an effective technical scheme for reducing salt and promoting the growth of crops under salinity stress, which is of great significance for improving salinity land in arid areas.
英文关键词	buckwheat desulfurisation gypsum photosynthetic light response characteristics polyacrylamide saline-alkali soil
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001268283600001
WOS关键词	RESPONSES ; LIGHT ; MODEL
WOS类目	Agronomy
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/2XILL650/404325
推荐引用方式 GB/T 7714	Tao, Wanghai,Zhao, Xue,Ning, Songrui,et al. Combining Desulfurisation Gypsum and Polyacrylamide to Reduce Soil Salinity and Promote Buckwheat Photosynthesis[J],2024,210(4).
APA	Tao, Wanghai,Zhao, Xue,Ning, Songrui,Ji, Meiyue,&Wang, Quanjiu.(2024).Combining Desulfurisation Gypsum and Polyacrylamide to Reduce Soil Salinity and Promote Buckwheat Photosynthesis.JOURNAL OF AGRONOMY AND CROP SCIENCE,210(4).
MLA	Tao, Wanghai,et al."Combining Desulfurisation Gypsum and Polyacrylamide to Reduce Soil Salinity and Promote Buckwheat Photosynthesis".JOURNAL OF AGRONOMY AND CROP SCIENCE 210.4(2024).