干旱区生态环境知识资源中心(Arid): Potential of superabsorbent hydrogels to improve agriculture under abiotic stresses

Arid

DOI	10.1016/j.jaridenv.2021.104496
	Potential of superabsorbent hydrogels to improve agriculture under abiotic stresses
	Vasconcelos Nascimento, Carla Danielle; Simmons, Robert William; de Andrade Feitosa, Judith Pessoa; dos Santos Dias, Carlos Tadeu; Gomes Costa, Mirian Cristina
通讯作者	Nascimento, CDV (corresponding author), Univ Fed Ceara, Dept Soil Sci, Av Mister Hull 2977, BR-60021970 Fortaleza, Ceara, Brazil.
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2021
卷号	189
英文摘要	Hydrogels are a promising management option to increase the efficiency of water use in agriculture in arid and semi-arid regions. However, abiotic factors may affect hydrogel efficacy. The effect of abiotic stress on the swelling and residual acrylamide in hydrogels was evaluated. The treatments were three hydrogels (A, B and C), four temperatures (20, 30, 40 and 65 degrees C) and two salinities (0.003 and 3.0 dS m(-1)). The swelling degree and the residual acrylamide concentration of the hydrogels were measured. Data were analyzed with univariate and multivariate statistics. The swelling order of hydrogels under low salinity was A>C>B; at high salinity was B>A>C. All hydrogels presented swelling reduction at high salinity, with swelling reductions in A and C of 97% and 85%, respectively, while B presented a swelling reduction of 37% at 20 degrees C and greater than 89% at higher temperatures. Hydrogel B achieved good swelling under saline conditions, but only at 20 degrees C. Thus, the temperature tolerance of this hydrogel should be improved so it can be used to improve water use efficiency in regions with high temperatures and salinity levels. Residual acrylamide levels of hydrogels decreased by 95% over 30 days, being safe for agricultural applications.
英文关键词	Anionic co-polymers Soil science Soil conservation Water use efficiency
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000647761400001
WOS关键词	SWELLING PROPERTIES ; GUAR GUM ; SOIL ; TEMPERATURE ; POLYACRYLAMIDE ; SALINITY ; CONDUCTIVITY ; PARAMETERS ; ACRYLAMIDE ; RETENTION
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350697
作者单位	[Vasconcelos Nascimento, Carla Danielle; dos Santos Dias, Carlos Tadeu; Gomes Costa, Mirian Cristina] Univ Fed Ceara, Dept Soil Sci, Av Mister Hull 2977, BR-60021970 Fortaleza, Ceara, Brazil; [Simmons, Robert William] Cranfield Univ, Cranfield Soil & Agrifood Inst, Cranfield, Beds, England; [de Andrade Feitosa, Judith Pessoa] Univ Fed Ceara, Dept Organ & Inorgan Chem, Fortaleza, Ceara, Brazil
推荐引用方式 GB/T 7714	Vasconcelos Nascimento, Carla Danielle,Simmons, Robert William,de Andrade Feitosa, Judith Pessoa,et al. Potential of superabsorbent hydrogels to improve agriculture under abiotic stresses[J],2021,189.
APA	Vasconcelos Nascimento, Carla Danielle,Simmons, Robert William,de Andrade Feitosa, Judith Pessoa,dos Santos Dias, Carlos Tadeu,&Gomes Costa, Mirian Cristina.(2021).Potential of superabsorbent hydrogels to improve agriculture under abiotic stresses.JOURNAL OF ARID ENVIRONMENTS,189.
MLA	Vasconcelos Nascimento, Carla Danielle,et al."Potential of superabsorbent hydrogels to improve agriculture under abiotic stresses".JOURNAL OF ARID ENVIRONMENTS 189(2021).