干旱区生态环境知识资源中心(Arid): Poly-γ-glutamic acid enhanced the yield and photosynthesis of soybeans by adjusting soil aggregates and water distribution

Arid

DOI	10.1002/jsfa.13520
	Poly-γ-glutamic acid enhanced the yield and photosynthesis of soybeans by adjusting soil aggregates and water distribution
	Jing, Bo; Shi, Wenjuan; Wang, Ying
通讯作者	Shi, WJ
来源期刊	JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
ISSN	0022-5142
EISSN	1097-0010
出版年	2024
卷号	104 期号:11 页码:6884-6892
英文摘要	BACKGROUND: Poly-gamma-glutamic acid (gamma-PGA) is employed extensively in agriculture to enhance soil water retention; however, the underlying mechanism by which gamma-PGA improves soil structure and soybean productivity in arid regions remains poorly understood. A micro-scale field experiment was conducted in the arid region of northwest China, employing five concentrations of gamma-PGA to investigate its impacts on soybean yield, photosynthesis, and water-use efficiency, as well as soil aggregates and water distribution. The five levels of gamma-PGA were 0 (CK), 10 (P1), 20 (P2), 40 (P3), and 80 kg ha(-1) (P4). RESULTS: The results demonstrated that the application of gamma-PGA significantly improved soybean yield, photosynthesis, and chlorophyll content. It resulted in a decrease in soil aggregate content with a maximum diameter of less than 0.053 mm and an increase in the stability of soil aggregates in the uppermost layer of the soil (0-30 cm). The application of gamma-PGA significantly increased soil water content, particularly in the uppermost layer of the soil, and effectively reduced water consumption and improving water use efficiency in soybeans. Overall, the P3 treatment exhibited the most pronounced improvement of soybean yield, photosynthesis, water-use efficiency, as well as distribution of soil aggregates and water. The correlation matrix heatmap also revealed a strong correlation between improvement of soybean yield or photosynthesis at various gamma-PGA application levels and the enhancement of soil stability or soil water content. CONCLUSION: The multivariate regression analysis revealed that an optimal application level of 46 kg ha(-1) gamma-PGA could enhance effectively both yield and water use efficiency of soybean in the arid region of northwest China. (c) 2024 Society of Chemical Industry.
英文关键词	soil amelioration photosynthesis soil water-stable aggregates soil water distribution
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001205783500001
WOS关键词	MAX L. MERR. ; DROUGHT RESISTANCE ; USE EFFICIENCY ; FOOD SECURITY ; PLANT-GROWTH ; PRODUCTIVITY ; QUALITY ; CROP ; STRESS ; COTTON
WOS类目	Agriculture, Multidisciplinary ; Chemistry, Applied ; Food Science & Technology
WOS研究方向	Agriculture ; Chemistry ; Food Science & Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404741
推荐引用方式 GB/T 7714	Jing, Bo,Shi, Wenjuan,Wang, Ying. Poly-γ-glutamic acid enhanced the yield and photosynthesis of soybeans by adjusting soil aggregates and water distribution[J],2024,104(11):6884-6892.
APA	Jing, Bo,Shi, Wenjuan,&Wang, Ying.(2024).Poly-γ-glutamic acid enhanced the yield and photosynthesis of soybeans by adjusting soil aggregates and water distribution.JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE,104(11),6884-6892.
MLA	Jing, Bo,et al."Poly-γ-glutamic acid enhanced the yield and photosynthesis of soybeans by adjusting soil aggregates and water distribution".JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 104.11(2024):6884-6892.