Salt leaching of heavy coastal saline silty soil by controlling the soil matric potential

Xiuping Wang, Zhizhong Xue, Xuelin Lu, Yahui Liu, Guangming Liu and Zhe Wu
Additional contact information
Xiuping Wang: Institute of Coastal Agriculture, Hebei Academy of Agriculture and Forestry Sciences, Tangshan Key Laboratory of Plant Salt-Tolerance Research, Tangshan, P.R. China
Zhizhong Xue: Institute of Coastal Agriculture, Hebei Academy of Agriculture and Forestry Sciences, Tangshan Key Laboratory of Plant Salt-Tolerance Research, Tangshan, P.R. China
Xuelin Lu: Institute of Coastal Agriculture, Hebei Academy of Agriculture and Forestry Sciences, Tangshan Key Laboratory of Plant Salt-Tolerance Research, Tangshan, P.R. China
Yahui Liu: Institute of Coastal Agriculture, Hebei Academy of Agriculture and Forestry Sciences, Tangshan Key Laboratory of Plant Salt-Tolerance Research, Tangshan, P.R. China
Guangming Liu: Institute of Soil Science, Chinese Academy of Sciences, Beijing, P.R. China
Zhe Wu: Institute of Coastal Agriculture, Hebei Academy of Agriculture and Forestry Sciences, Tangshan Key Laboratory of Plant Salt-Tolerance Research, Tangshan, P.R. China

Soil and Water Research, 2019, vol. 14, issue 3, 132-137

Abstract: Techniques of drip irrigation are broadly applied for the reclamation of saline-alkali lands, during which effective management of water use to accelerate salt leaching is essential for crop production. In 2017, a field experiment with five treatments of soil matric potential (SMP) levels of -5, -10, -15, -20, and -25 kPa was conducted in heavy saline silty soil land in Bohai Bay, China to study the effects of drip irrigation on salt leaching. The results showed that salt leaching was enhanced with increasing SMP, particularly under an SMP of -5 kPa within a 30 cm soil profile depth and 15 cm distance from the dripper, and the average electrical conductivity of saturated paste extracts (ECe) decreased from 13.8 to 1.52 dS/m. Water consumption increased with increasing SMP, but the yield of oil sunflower did not differ significantly between SMPs of -5 and -10 kPa. These findings indicated that a relatively high crop yield of oil sunflower and effective salt leaching can be achieved if the SMP can be controlled at -10 kPa in heavy saline silty soil.

Keywords: drip irrigation; oil sunflower; reclamation of saline soil; ridge cultivation; water control (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://swr.agriculturejournals.cz/doi/10.17221/106/2018-SWR.html (text/html)
http://swr.agriculturejournals.cz/doi/10.17221/106/2018-SWR.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlswr:v:14:y:2019:i:3:id:106-2018-swr

DOI: 10.17221/106/2018-SWR

Access Statistics for this article

Soil and Water Research is currently edited by Ing. Markéta Knížková, (Executive Editor)

More articles in Soil and Water Research from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().