The influence of earthworms on the mobility of microelements in soil and their availability for plants

Bityutskii, Nikolai P.; Kaidun, Polina

doi:10.1134/s1064229308120089

Cited by 12 publications

(8 citation statements)

References 12 publications

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“…The pH increase in casts can have significant effects on soil processes as well as the availability of nutrients that are pH sensitive, as showed in the present study. The availability of several micronutrients (Mn, Fe, Cu) was higher in casts than control soil, confirming reports for other earthworm species (Bityutskii and Kaidun 2008;Bartz et al 2010;Bityutskii et al 2012). The higher moisture level in worm casts may favour the solubilization of these elements as they are exposed to greater hydrolysis and complexation by organic acids in the gut.…”

Section: Cast Physical and Chemical Propertiessupporting

confidence: 82%

Emission of greenhouse gases and soil changes in casts of a giant Brazilian earthworm

et al. 2021

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Greenhouse gas emissions (CO 2 , N 2 O, CH 4 ) and chemical, physical and microbiological properties (pH, macro and micronutrients, texture, moisture, exchangeable NH 4 + , NO 3 − , total C and N, organic C, microbial biomass C and metabolic coefficient) were monitored in casts of a large, endogeic native Brazilian earthworm species Rhinodrilus alatus and from noningested control soil incubated for up to 32 days. Earthworm casts represented a significantly different chemical and microbiological environment, with higher soil moisture, pH, H + Al, exchangeable NH 4 , Cu, Fe and Mn contents, lower microbial biomass C and higher metabolic quotient (qCO 2 ), but with few differences in CO 2 , N 2 O and CH 4 emissions compared with noningested control soil. Nonetheless, fermenting, methanogenic and nitrate-reducing microbes encountered ideal conditions for sustained anaerobic activity in the clayey, dense and moist castings of R. alatus, maintaining emission of N 2 O and CH 4 and confirming previous results observed using gut contents. The high exchangeable NH 4 and H 2 O contents influenced the oxyreduction processes, affected GHG emissions and N transformations and modified soil microbial biomass and activity. In addition, selective ingestion concentrates C and N contents in the casts and transformation processes affect the availability of important plant nutrients, topics that deserve further attention, considering the widespread collection of this species for use as fish-bait in Brazil.

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Section: Cast Physical and Chemical Propertiessupporting

confidence: 82%

Emission of greenhouse gases and soil changes in casts of a giant Brazilian earthworm

et al. 2021

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“…The increase in assimilable forms of microelements has been noticed-for instance, Bityudskii and Kaidun [87] indicated an increase in the number of assimilable forms of Fe and Mn in earthworm casting, and Devliegher and Verstraete [88] observed that the accessibility of such microelements as Fe, Mn and Cu for plants had increased in the soil in the presence of earthworms (respectively by 6%, 12%, 6%). The best results concerning vermicomposting technology on the solubility of some microelements (Fe, Mn, Cu and Zn) as well as heavy metals (Pb, Cd and Cr) in different combinations of fly ash and organic substances revealed that the introduction of the earthworm Eisenia fetida, to different combinations of fly ash and cow dung, resulted in the transformation of a significant number of microelements into bioavailable forms, but the solubility of heavy metals was generally reduced, probably through forming organometallic complexes [89].…”

Section: Trace Elementsmentioning

confidence: 99%

Properties of Vermicomposts Derived from Cameroon Sheep Dung

et al. 2020

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Due to a need for sustainability in agriculture, waste products ought to be utilized in the most appropriate way. A study was undertaken relating to the vermicomposting of Cameroon sheep dung (CSD) by the earthworm Dendrobaena veneta. Processing of this waste was investigated using unadulterated CSD and in a 1:1 mixture with unpalatable (waste) hay (CSDH). Results demonstrated that these materials were actively processed by D. veneta with vermicomposts obtained which can be characterized by a higher amount of total nitrogen, phosphorus and potassium (average, respectively, 17.0, 10.5, 13.2 g kg−1 d.m.), as well as lower total carbon and magnesium content (respectively, 340 and 3.2 g kg−1 d.m.), compared with the initial waste material. No significant differences were found between CSD and CSDH vermicomposts with respect to chemistry. Levels of selected trace elements (average: Cu 17.5–18.8, Cr 5.7–5.8, Pb 13.5–14.4, Ni < 3, Cd < 0.4 mg kg−1 d.m.) in both vermicomposts did not exclude their application to agricultural soil as a fertilizer.

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“…Дождевые черви играют важную роль в формировании плодородия почв. Благодаря высокой скорости поглощения пищи и локомоторной активности, черви модифицируют среду обитания, изменяя кинетику разнообразных почвенных процессов, прямо или косвенно влияющих на рост растений [1]. Присутствие червей в субстратах способствует ускорению процессов минерализации органических остатков, улучшению роста, развития, продуктивности растений и качества производимой продукции [14,22,28].…”

Section: Introductionunclassified

EFFECT OF VARIOUS STRAW/MANURE RATIOS IN SYSTEMS WITH EARTHWORMS Eisenia fetida ON LETTUCE GROWTH PARAMETERS AND SUBSTRATE QUALITY

Zyubanova,

Minaeva,

Akimova

et al. 2024

SJLSA

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Background. At present, there is an increase in demand for natural agricultural products, which is contributing to the development of plant production in artificial ecosystems that function according to the principles of natural cenoses, with a certain flexibility to emerging stresses. Organic wastes can be incorporated into biosphere-like system compositions in the presence of decomposers, which include earthworms that increase the productivity, environmental sustainability, and self-regulating capacity of agroecosystems. Purpose. The purpose of our research was to investigate the effect of wheat straw/ cattle manure ratios in model systems with peat substrate and earthworms on lettuce productivity and vegetative growth parameters, chemical composition of plants and substrates, as well as worm population. Materials and methods. In laboratory experiments, we evaluated the effect of applying organic wastes (various wheat straw/cattle manure ratios) to peat substrate with introduced earthworms (Eisenia fetida) (10 individuals/800 g substrate) on lettuce (Lactuca sativa Credo cultivar lettuce plants). At the experiment’s end, each plant’s height, leaf area, aboveground biomass (fresh and dry), and photosynthetic pigment content were measured; chemical analysis of substrates and plant mass was carried out; worm adaptive capacity was evaluated according to morphofunctional characteristics; worm fecundity and coprolite output were calculated; the number of bacteria and micromycetes was counted, and Azotobacter activity was estimated. All experiments were performed in three independent biological replicates. Statistical analysis was performed using the application package Statistica 10.0 (StatSoft, USA). Results. Incorporating of various straw/manure ratios into the substrate enhanced the productivity of lettuce plants: the edible surface area, plant weight and photosynthetic pigment content increased. This also contributed to a significant change in the content of mobile forms of major nutrients in the substrate, as well as to a significant reduction in total nitrogen in plant tissues, and the accumulation of phosphorus and potassium. The addition of wheat straw and manure increased worm reproductive performance and coprolite output. Conclusions. The possibility of obtaining plant crop and earthworm biomass in an artificial ecosystem with various straw/ manure ratios in a peat substrate is shown. Funding. The work was carried out within the State Assignment of the Siberian Federal Scientific Center of Agrobiotechnologies of the Russian Academy of Sciences FNUU-2021-0005.

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The influence of earthworms on the mobility of microelements in soil and their availability for plants

Cited by 12 publications

References 12 publications

Emission of greenhouse gases and soil changes in casts of a giant Brazilian earthworm

Emission of greenhouse gases and soil changes in casts of a giant Brazilian earthworm

Properties of Vermicomposts Derived from Cameroon Sheep Dung

EFFECT OF VARIOUS STRAW/MANURE RATIOS IN SYSTEMS WITH EARTHWORMS Eisenia fetida ON LETTUCE GROWTH PARAMETERS AND SUBSTRATE QUALITY

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