干旱区生态环境知识资源中心(Arid): Reclaiming Tropical Saline-Sodic Soils with Gypsum and Cow Manure

Arid

DOI	10.3390/w12010057
	Reclaiming Tropical Saline-Sodic Soils with Gypsum and Cow Manure
	Goncalo Filho, Francisco 1; Dias, Nildo da Silva 1; Prazeres Suddarth, Stella Ribeiro 1,3; Ferreira, Jorge F. S.2; Anderson, Ray G.2; Fernandes, Cleyton dos Santos 1; de Lira, Raniere Barbosa 1; Neto, Miguel Ferreira 1; Cosme, Christiano Reboucas 1
通讯作者	Ferreira, Jorge F. S. ; Anderson, Ray G.
来源期刊	WATER
EISSN	2073-4441
出版年	2020
卷号	12 期号:1
英文摘要	Saline-sodic soils are a major impediment for agricultural production in semi-arid regions. Salinity and sodicity drastically reduce agricultural crop yields, damage farm equipment, jeopardize food security, and render soils unusable for agriculture. However, many farmers in developing semi-arid regions cannot afford expensive amendments to reclaim saline-sodic soils. Furthermore, existing research does not cover soil types (e.g., Luvisols and Lixisols) that are found in many semi-arid regions of South America. Therefore, we used percolation columns to evaluate the effect of inexpensive chemical and organic amendments (gypsum and cow manure) on the reclamation of saline-sodic soils in the northeast of Brazil. Soil samples from two layers (0-20 cm and 20-40 cm in depth) were collected and placed in percolation columns. Then, we applied gypsum into the columns, with and without cow manure. The experiment followed a complete randomized design with three replications. The chemical amendment treatments included a control and four combinations of gypsum and cow manure. Percolation columns were subjected to a constant flood layer of 55 mm. We evaluated the effectiveness of sodic soil reclamation treatments via changes in soil hydraulic conductivity, chemical composition (cations and anions), electrical conductivity of the saturated soil-paste extract, pH, and the exchangeable sodium percentage. These results suggest that the combined use of gypsum and cow manure is better to reduce soil sodicity, improve soil chemical properties, and increase water infiltration than gypsum alone. Cow manure at 40 ton ha(-1) was better than at 80 ton ha(-1) to reduce the sodium adsorption ratio.
英文关键词	salinization gypsum manure sodicity tropical soils
类型	Article
语种	英语
国家	Brazil ; USA
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000519847200057
WOS关键词	GAS DESULFURIZATION GYPSUM ; PHYSICAL-PROPERTIES ; MICROBIAL BIOMASS ; SOLUBLE CATIONS ; ORGANIC-MATTER ; CLIMATE-CHANGE ; RECLAMATION ; AMENDMENTS ; GROWTH ; WATER
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315697
作者单位	1.Fed Rural Univ SemiArid UFERSA, Ctr Agr Sci, Dept Agron & Forest Sci, Francisco Mota St, BR-9625900 Mossoro, RN, Brazil; 2.USDA ARS, US Salin Lab, 450 W Big Springs Rd, Riverside, CA 92507 USA; 3.Driscolls, POB 50045, Watsonville, CA 95077 USA
推荐引用方式 GB/T 7714	Goncalo Filho, Francisco,Dias, Nildo da Silva,Prazeres Suddarth, Stella Ribeiro,et al. Reclaiming Tropical Saline-Sodic Soils with Gypsum and Cow Manure[J],2020,12(1).
APA	Goncalo Filho, Francisco.,Dias, Nildo da Silva.,Prazeres Suddarth, Stella Ribeiro.,Ferreira, Jorge F. S..,Anderson, Ray G..,...&Cosme, Christiano Reboucas.(2020).Reclaiming Tropical Saline-Sodic Soils with Gypsum and Cow Manure.WATER,12(1).
MLA	Goncalo Filho, Francisco,et al."Reclaiming Tropical Saline-Sodic Soils with Gypsum and Cow Manure".WATER 12.1(2020).