Implications of surfactant application on soil hydrology, macronutrients, and organic carbon fractions: An integrative field study

IF 1.7 4区农林科学 Q4 SOIL SCIENCE

Soil and Water Research Pub Date : 2023-10-30 DOI:10.17221/88/2023-swr

Cansu Almaz, Recep Serdar Kara, Markéta Miháliková, Svatopluk Matula

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引用次数: 0

Abstract

This study investigates the effects ofÂ repeated applications ofÂ the non-ionic soil surfactant H2Flo (ICL-SF Inc., Israel) onÂ the soil water content, hydraulic conductivity, nutrient distribution, and organic carbon fractions (OCFs) inÂ non-hydrophobic loamy sand soils under subsurface drip irrigation. Our results indicate that H2Flo treatment reduces both saturated and unsaturated hydraulic conductivity while promoting the uniform irrigation distribution, consistent with previous findings onÂ surfactants’ effects onÂ sandy soils. AnÂ increase inÂ soil pH levels, organic carbon content, and extractable magnesium, calcium, and potassium was observed inÂ treated soils, with elevated levels ofÂ potassium permanganate oxidizable organic carbon (POXC) implying accelerated decomposition rates. Notably, aÂ positive linear relationship was found between POXC and the increased NO₃^–-NÂ content ofÂ treated soils, suggesting induced conditions ofÂ nitrification. However, the carbon fractions water-soluble organic carbon (C_ws) and hot water-soluble organic carbon (C_hws) remained quantitatively unchanged, even though they exhibited aÂ positive linear relationship with the soil’s hydraulic conductivity. The study highlights the crucial role ofÂ monitoring changes inÂ OCFs and nutrient dynamics after surfactant application toÂ optimize soil organic matter utilization and chemical fertilizer management.

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表面活性剂对土壤水文、常量养分和有机碳组分的影响:一个综合的实地研究

本研究考察了ofÂ重复施用ofÂ非离子型土壤表面活性剂H2Flo (ICL-SF Inc.， Israel) onÂ对地下滴灌条件下土壤含水量、导电性、养分分布和有机碳组分(ocf)的影响inÂ非疏水性壤土砂土。我们的研究结果表明，H2Flo处理降低了饱和和非饱和的导电性，同时促进了均匀的灌溉分布，与先前的研究结果一致onÂ表面活性剂的作用onÂ沙土。AnÂ增加inÂ土壤pH值，有机碳含量，可提取的镁、钙和钾在inÂ处理的土壤中被观察到，ofÂ高锰酸钾可氧化有机碳(POXC)水平升高意味着分解速度加快。值得注意的是，POXC与处理土壤NO3—NÂ含量的增加ofÂ之间存在aÂ正线性关系，提示诱导条件ofÂ硝化作用。碳组分水溶性有机碳(Cws)和热水溶性有机碳(Chws)与土壤导水率呈aÂ正线性关系，但在数量上保持不变。研究强调了表面活性剂施用后ofÂ监测变化inÂ OCFs和养分动态toÂ对土壤有机质利用和化肥管理的重要作用。

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来源期刊

Soil and Water Research Water resources, Soil Science, Agriculture-WATER RESOURCES

CiteScore

4.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： An international peer-reviewed journal published under the auspices of the Czech Academy of Agricultural Sciences and financed by the Ministry of Agriculture of the Czech Republic. Published since 2006. Thematic: original papers, short communications and critical reviews from all fields of science and engineering related to soil and water and their interactions in natural and man-modified landscapes, with a particular focus on agricultural land use. The fields encompassed include, but are not limited to, the basic and applied soil science, soil hydrology, irrigation and drainage of lands, hydrology, management and revitalisation of small water streams and small water reservoirs, including fishponds, soil erosion research and control, drought and flood control, wetland restoration and protection, surface and ground water protection in therms of their quantity and quality.