干旱区生态环境知识资源中心(Arid): Hydrogel composed of potassium acrylate, acrylamide, and mineral as soil conditioner under saline conditions

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DOI	10.1590/1678-992X-2020-0235
	Hydrogel composed of potassium acrylate, acrylamide, and mineral as soil conditioner under saline conditions
	Gomes Costa, Mirian Cristina; Freire, Alcione Guimaraes; Lourenco, Diego Vasconcelos; de Sousa, Rayane Rodrigues; de Andrade Feitosa, Judith Pessoa; Anunciato Mota, Jaedson Claudio
通讯作者	Costa, MCG (corresponding author), Univ Fed Ceara, Dept Ciencias Solo, Av Mister Hull 2977, BR-60356001 Fortaleza, CE, Brazil.
来源期刊	SCIENTIA AGRICOLA
ISSN	1678-992X
出版年	2022
卷号	79 期号:4
英文摘要	Hydrogels have potential as soil conditioners due to their high capacity to retain water and mitigate soil salinity. However, investigations under saline conditions are necessary because there are losses in both water absorption and salinity mitigation depending on the composition of hydrogel and ions involved in salinity. In this work, we studied a commercial hydrogel in two experiments. The first experiment was conducted in the laboratory to evaluate the absorption by the hydrogel of water with electrical conductivity (EC) of 0.5, 1.5, 3.0, and 4.5 dS m(-1), promoted by NaCI. The second experiment was conducted in a greenhouse in a 2 x 4 factorial scheme (with and without hydrogel x EC of the first experiment). Although salinity reduced water absorption by hydrogel by 84 %, the polymer applied in a sandy soil under saline conditions reduced water losses by 58 %. However, hydrogel did not increase the final soil moisture (- 0.10 g g(-1)). The polymer reduced Na+ concentration in leachate from 1,499 to 1,219 mg at the highest salinity level (4.5 dS m(-1)), but it increased Na+ soil availability by 0.1 mg kg(-1) in comparison with polymer absence. Hydrogel application increased Na+ content in plants from 9 to 13 mg kg(-1) at the highest salinity, while K+ content was 10 to 16 mg kg(-1) lower than that observed without a polymer. Hydrogel 0.07 % (w/w) reduced maize biomass, indicating damage by monovalent ions, compromising the polymer potential under salinity.
英文关键词	superabsorbent gels water salinity soil sodicity semi-arid region soil amendment
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:000679802900001
WOS关键词	SUPERABSORBENT POLYMER ; WATER-RETENTION ; SANDY SOIL ; SALT ; RELEASE ; GROWTH ; ACID
WOS类目	Agriculture, Multidisciplinary
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/2XILL650/364644
作者单位	[Gomes Costa, Mirian Cristina; Lourenco, Diego Vasconcelos; Anunciato Mota, Jaedson Claudio] Univ Fed Ceara, Dept Ciencias Solo, Av Mister Hull 2977, BR-60356001 Fortaleza, CE, Brazil; [Freire, Alcione Guimaraes] Fundacao Cearense Meteorol & Recursos Hidr, Av Rui Barbosa 1246, BR-60115221 Fortaleza, CE, Brazil; [de Sousa, Rayane Rodrigues; de Andrade Feitosa, Judith Pessoa] Univ Fed Ceara, Dept Quim Organ & Inorgan, Fortaleza, CE, Brazil
推荐引用方式 GB/T 7714	Gomes Costa, Mirian Cristina,Freire, Alcione Guimaraes,Lourenco, Diego Vasconcelos,et al. Hydrogel composed of potassium acrylate, acrylamide, and mineral as soil conditioner under saline conditions[J],2022,79(4).
APA	Gomes Costa, Mirian Cristina,Freire, Alcione Guimaraes,Lourenco, Diego Vasconcelos,de Sousa, Rayane Rodrigues,de Andrade Feitosa, Judith Pessoa,&Anunciato Mota, Jaedson Claudio.(2022).Hydrogel composed of potassium acrylate, acrylamide, and mineral as soil conditioner under saline conditions.SCIENTIA AGRICOLA,79(4).
MLA	Gomes Costa, Mirian Cristina,et al."Hydrogel composed of potassium acrylate, acrylamide, and mineral as soil conditioner under saline conditions".SCIENTIA AGRICOLA 79.4(2022).