Sodium Lignosulfonate Effect on Physiological Traits of Cucumis sativus L. Seedlings

Elena Ikkonen, Maria Yurkevich, Natalia Kaznina and Pavel Krasilnikov ()
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Elena Ikkonen: Institute of Biology of the Karelian Research Centre, Russian Academy of Sciences, Petrozavodsk 185910, Russia
Maria Yurkevich: Institute of Biology of the Karelian Research Centre, Russian Academy of Sciences, Petrozavodsk 185910, Russia
Natalia Kaznina: Institute of Biology of the Karelian Research Centre, Russian Academy of Sciences, Petrozavodsk 185910, Russia
Pavel Krasilnikov: Faculty of Soil Science, Lomonosov Moscow State University, Moscow 119991, Russia

Agriculture, 2023, vol. 13, issue 2, 1-16

Abstract: The application of pulp and paper mill sludge to agricultural soils is commonly considered as a strategy to improve soil properties, promote plant growth, and reduce the demand for costly chemical fertilization. The aim of this study was to evaluate if sodium lignosulfonate (sLS), one of the sludges of pulp production, may affect the biomass production, the respiration ( R ) and net CO 2 assimilation rate ( A n ) at the leaf level, and the content and accumulation of trace elements in the leaves of cucumbers grown under a sufficient nutrient supply or soil nutrient deficit. A pot culture experiment was conducted using sLS application rates of 0, 1.0, 2.5, 5.0, and 10 vol% to sandy loam soil. The decline in nutrient availability caused an increase in the R / A n ratio and dramatically depressed biomass accumulation. The leaf Fe, Ni, Cr, Co, Al, and Pb contents were lower under low nutrient availability than under sufficient nutrient supply. Although sLS was not very effective in lessening the negative effect of nutrient deficiency on biomass accumulation, it reduced respiratory carbon losses and cell membrane permeability in the leaves of cucumbers grown under nutrient deficit. The reduction in the toxic level of leaf Mn in seedlings grown under sufficient nutrient availability and the toxic level of leaf Fe under a nutrient deficit might also be considered as a positive effect of the sLS application to sandy soil.

Keywords: photosynthesis; respiration; trace elements; nutrient availability; nutrient deficiency (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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