Assessing metal–lignosulfonates as fertilizers using gel filtration chromatography and high-performance size exclusion chromatography

Islas‐Valdez, Samira; López-Rayo, Sandra; Hristov-Emilov, Hristiyan; Hernández‐Apaolaza, Lourdes

doi:10.1016/j.ijbiomac.2019.09.088

Cited by 16 publications

(11 citation statements)

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“…The exclusion volume (V o ) was determined with blue dextran 2000 (MW∼2000 kDa) and the total volume (V p ) with Fe 3+ :HBED (MW∼440 Da) from 0.1 mol L –1 NaCl at pH 6. This was in agreement with a previous study in which the molecular weight distribution of Fe:lignosulfonate complexes was evaluated …”

Section: Methodssupporting

confidence: 93%

Effect of Fe:ligand ratios on hydroponic conditions and calcareous soil in Solanum lycopersicum L. and Glycine max L. fertilized with heptagluconate and gluconate

et al. 2019

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BACKGROUND: The environmental risk from the application of synthetic chelates has led to the use of biodegradable complexes to correct Fe deficiency in plants. In this article, the Fe oxidation state, the Fe:ligand ratio, and the molecular weight distribution for heptagluconate (G7) and gluconate (G6) are considered as key factors for the efficacy of complexes as fertilizers. Complexes with different Fe:ligand ratios were prepared and analyzed by gel filtration chromatography (GFC). The ability of Fe:ligand ratios to provide Fe to tomato in hydroponics and soybean in calcareous soil was tested and compared with synthetic chelates (Fe 3+ :HBED and Fe 3+ :EDTA). RESULTS: G7 presented greater capacity to complex both Fe(II) and Fe(III) than G6, but the Fe(II) complexes exhibited poor stability at pH 9 and oxidation in solution.Gel filtration chromatography demonstrated the polynuclear nature of the Fe 3+ :G7 at various ratios. The effectiveness of the Fe fertilizers depend on the Fe 3+ :ligand ratio and the ligand type, the Fe 3+ :G7 (1:1 and 1:2) being the most effective. Fe 3+ :G7 (1:1) also presented a better response for the uptake of other micronutrients. CONCLUSION: Fe 3+ :G7 molar ratios have been shown to be critical for plant Fe uptake under hydroponic conditions and with calcareous soil. Thus, the Fe 3+ :G7 at equimolar ratio and 1:2 molar ratio can be an environmentally friendly alternative to less degradable synthetic chelates to correct Fe chlorosis in strategy I plants.

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Section: Methodssupporting

confidence: 93%

Effect of Fe:ligand ratios on hydroponic conditions and calcareous soil in Solanum lycopersicum L. and Glycine max L. fertilized with heptagluconate and gluconate

et al. 2019

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“…As outlined in the Introduction we hypothesized that sodium LS application can improve soil nutrient availability and nutrient uptake by plants that, therefore, can positively affect the plant physiological traits. Our hypothesis was based on the early findings that LS can improve soil chemical conditions [9,10] and some physiological traits of plants [14][15][16][17][18]. The agricultural application of LSs, as low-cost compounds, could be highly advantageous [6,10,11] and might promote the effective utilization of wastes of paper and pulp industry.…”

Section: Discussionmentioning

confidence: 99%

“…Our hypothesis was based on the early findings that LS can improve soil chemical conditions [9,10] and some physiological traits of plants [14][15][16][17][18]. The agricultural application of LSs, as low-cost compounds, could be highly advantageous [6,10,11] and might promote the effective utilization of wastes of paper and pulp industry. However, we found no evidence of beneficial effects of sodium LS on cucumber seedlings' growth, development, photosynthesis, and photosynthetic nutrient and water use efficiency, regardless of the conditions of nutrient availability for the plants.…”

Section: Discussionmentioning

confidence: 99%

“…A wide variety of elements are presented in carboxylic, phenolic, sulfonic, and other groups of LS's structure [9]. Recent studies have shown that LSs can be applied as a soil conditioner and chelate fertilizer [10,11], improving the physical, chemical, and biological characteristics of soils [12,13]. For plants, it was reported that LSs can enhance callus proliferation rate and adventitious root formation [14] and improve root activity [15].…”

Section: Introductionmentioning

confidence: 99%

“…The ability of LSs to improve soil chemical parameters [10,13] and chelate nutrient ions [20] allows suggesting that LS can enhance leaf nutrient content, especially when plants grow in soil characterized by low natural fertility. However, there has been no published evidence supporting this claim.…”

Section: Introductionmentioning

confidence: 99%

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Photosynthetic Nutrient and Water Use Efficiency of Cucumis sativus under Contrasting Soil Nutrient and Lignosulfonate Levels

Ikkonen¹,

Chazhengina

Jurkevich³

2021

Plants

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To reduce the use of commercial conventional inorganic fertilizers, the possibility of using pulp and paper industry wastes in agriculture as an alternative source of nutrients is recently under study and discussion. This work aimed to evaluate the effect of sodium lignosulfonate application to soil on photosynthetic leaf nutrient (N, P, K, Ca, Mg, Fe, Mn, and Na) and water use efficiency. A pot culture experiment was conducted with cucumber seedlings, using five lignosulfonate concentrations (0, 1, 2.5, 5, and 10 vol. %) in sandy soil under sufficient or low nutrient availability for plants. The impact of nutrient availability on the plants’ physiological traits was stronger than the lignosulfonate impact. Under sufficient nutrient availability, the lignosulfonate application resulted in decreased photosynthetic N, P, K, Ca, Mg, Fe, and Na use efficiency. Cucumber growth and development, and photosynthetic nutrient, water, and light use efficiency were significantly reduced with a nutrient deficiency. The sodium lignosulfonate application was not successful in eliminating the negative effects of nutrient deficit on cucumber seedlings.

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Implications of the Mn:ligand ratio for Mn uptake by Glycine max L. plants fertilized with heptagluconate and gluconate complexes

2021

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BACKGROUND The environmental risk of the application of synthetic chelates has furthered the implementation of biodegradable complexes to correct manganese (Mn)‐deficient plants. This study used the biodegradable ligands of heptagluconate (G7) and gluconate (G6) to test the influence of the Mn2+:ligand ratio on their fertilizers' capacity to provide Mn to plants. The efficacy of these complexes to correct Mn‐deficient soybean was evaluated in hydroponics and calcareous soil conditions and compared with the synthetic chelate EDTA (ethylenediaminetetraacetic acid). RESULTS This study demonstrated that G7 was a biodegradable alternative to EDTA for supplying Mn, maintaining an adequate nutritional balance compared with G6, which reduced iron (Fe) uptake by the plants. The efficacy of the Mn complexes depended on both the ligand and the Mn:ligand ratio, with the 1:1 and 1:2 molar ratios of Mn2+:G7 being the most effective complexes in the short term on the basis of their chemical structure and stability. CONCLUSION The Mn2+:G7 (1:1 and 1:2) complexes were found to be effective Mn sources for plant nutrition due to their chemical structures providing adequate stability in alkaline solution and their fast‐action effect. © 2021 Society of Chemical Industry

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Assessing metal–lignosulfonates as fertilizers using gel filtration chromatography and high-performance size exclusion chromatography

Cited by 16 publications

References 30 publications

Effect of Fe:ligand ratios on hydroponic conditions and calcareous soil in Solanum lycopersicum L. and Glycine max L. fertilized with heptagluconate and gluconate

Effect of Fe:ligand ratios on hydroponic conditions and calcareous soil in Solanum lycopersicum L. and Glycine max L. fertilized with heptagluconate and gluconate

Photosynthetic Nutrient and Water Use Efficiency of Cucumis sativus under Contrasting Soil Nutrient and Lignosulfonate Levels

Implications of the Mn:ligand ratio for Mn uptake by Glycine max L. plants fertilized with heptagluconate and gluconate complexes

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