Changes in microbial biomass C, N, and P and enzyme activities in soil incubated with the earthworms Metaphire guillelmi or Eisenia fetida

Zhang, Baogui; Li, Guitong; Shen, Tian-Shou; Wang, Jiankui; Sun, Zhipeng

doi:10.1016/s0038-0717(00)00111-5

Cited by 203 publications

(94 citation statements)

References 31 publications

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“…The increased basic AcPA we observed in casts extended earlier observations made with casts of temperate epigeic worms, such as Eisenia fetida, Dendrobaena veneta, L. rubellus (Satchell and Martin, 1984) and D. octaedra, (Flegel and Schrader, 2000), of temperate endogeic worms such as A. caliginosa (Satchell and Martin, 1984), O. cyaneum (Buck et al, 1999), and of tropical endogeic worms (Eudrilus eugeniae, Parthasarathi and Ranganathan, 1999). On the contrary, casts of the epigeic worm E. fetida and the Chinese anecic worm Metaphire guillem had lower AcPA and AkPA activities (Zhang et al, 2000), probably explained by an inhibition of the expression of enzymatic activities due to the concentration of inorganic P in the control soil.…”

Section: Phosphatase Activity Carbon and Nitrogen Contentssupporting

confidence: 89%

Earthworms change the distribution and availability of phosphorous in organic substrates

Bayon

Binet

2006

Soil Biology and Biochemistry

133

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In laboratory controlled soil microcosms, the distribution and availability of phosphorous (P) were determined in the surface-casts and the burrows-linings of the anecic earthworm L. terrestris and were compared with non-ingested soil. To simulate more realistic earthworm community conditions, a combination of L. terrestris plus the endogeic A. caliginosa was tested. For a 2-month period, the earthworms were given two organic food substrates: rye-grass littered onto the soil surface and sewage sludge mixed with soil. The following treatments were designed: (i) soil alone (S), (ii) soil and sewage sludge (SS), soil and rye-grass litter (SL), and (iv) soil, litter and sludge (SSL). Analyses were performed for P contents (total, available and organic), organic matter content (organic carbon, C org and total nitrogen, N tot ) and the two acid and alkaline phosphatase activities (AcPA and AkPA). Earthworms enhanced AcPA and were also responsible for additional AkPA in soil. The two AcPA and AkPA increased not only in surface-casts but also in burrows-linings that paralleled with the decrease of organic P in SL and SSL treatments. The stimulation of AcPA began quickly and declined rapidly in casts (from 19 to 8 mmol phenol g K1 dry wt h K1 , respectively at week 2 and 8 in the SL treatment) but it was initiated later and maintained at a high level for longer in burrows (more than 10 mmol phenol g K1 dry wt h K1 at week 8 in the SL treatment). Significant positive correlations were found between the AkPA activities and N tot contents (rZ0.95, pZ0.001) and to a lesser extend with C org contents (rZ0.76, pZ0.05) in casts from the SL treatment, while AcPA significantly correlated with N tot (rZ0.91, pZ0.004) but not with C org (rZ0.72, pZ0.06). P availability was always highest in casts. However, the available P contents decreased sharply over time in casts and were still low in burrow-linings, suggesting that a large part of inorganic P produced was rapidly immobilized for the microbial growth. Total P content was unchanged except in the SL treatment in which it increased in casts and burrows (ca. 725 mg g K1 , at week 4). Organic P was first the highest in casts and then decreased over time (from 168 at week 1 to 140 mg g K1 at week 8 in the SL treatment). This study illustrates that earthworms facilitate P transfer downward increasing a P patchy distribution in the soil, and significantly change the biogeochemical status of P (availability, organic phosphorous pool, AcPA activities) in certain hot spots such as casts and burrow-linings.

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Section: Phosphatase Activity Carbon and Nitrogen Contentssupporting

confidence: 89%

Earthworms change the distribution and availability of phosphorous in organic substrates

Bayon

Binet

2006

Soil Biology and Biochemistry

133

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“…According to Lee (1992) the passage of organic residue through the gut of earthworm releases phosphorus. Available forms of Phosphate is performed partly by earthworm gut wall microbial phosphatase and further released of phosphorus might be attributes to phosphorus solubilising micro organism present in worm cast (Zhang et al 2000). Total potassium (K) concentration was increased in vermicomposts of all the combination except cow dung.…”

Section: Discussionmentioning

confidence: 99%

Status of N P K in Vermicompost Prepared from Two Common Weed and Two Medicinal Plants

Mistry¹,

Mukhopadhyay²,

Baur³

2015

Int J Appl Sci Biotechnol

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Vermicomposting is a bio-technique and vermicompost are good superlatives for organic farming. During vermicomposting the nutrients are released and converted into soluble and available forms that’s providing nutrients such as available N (nitrogen), soluble K (potassium), exchangeable Ca (calcium), Mg (magnesium), P (phosphorus) and microelements such as Fe (iron), Mo (molybdenum), Zn (zinc), and Cu (cupper) which can easily taken up by plants. Vermicompost contains plant growth regulators, soil treated with vermicompost showed better plant growth than treated with inorganic and other organic fertilizers. Adding of vermicompost to soil improves the soil structure, increasing the water holding capacity and porosity. Vermicomposts have also been shown to suppress attacks by soil and foliar transmitted plant diseases.This article reviews various attribute as NPK values of Parthenium hysterophorus, Azadirachta indica, Argemone mexicana, and Vitex negundo vermicompost. pH of each compost are in range of 7.5 – 8.1. Nitrogen (N) content (%) is low in cow dung compost (1.7%) and higher in other plant compost except Azadirachta indica and Vitex negundo, maximum in Parthenium vermicompost (1.8%). Phosphorus (P %) ranges 1.3% to 1.6% and maximum in Azadirachta indica vermicompost. Potassium (K %) ranges 0.8% to 15.8% and all four vermicompost has significantly higher K contents than the cow dung compost. Organic carbon - nitrogen ratios (C/N) were also higher in vermicomposts produced with plant except in Argemone mexicana.Int J Appl Sci Biotechnol, Vol 3(2): 193-196 DOI: http://dx.doi.org/10.3126/ijasbt.v3i2.12533

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“…Modified from Chapuis-Lardy et al (2009) studies reported increased enzymatic activity in earthworm casts and the stimulation of microbial activity (Sharpley and Syers 1976;James 1991;López-Hernández et al 1993;Chapuis and Brossard 1995;Brossard et al 1996;Le Bayon and Binet 2006). However, Zhang et al (2000) observed an increase of inorganic P in soils in the presence of earthworms, despite a decrease of acid and alkaline phosphatase activities in earthworm casts, suggesting that P-containing organic matter is digested in the gut rather than in the casts. This confirms the results of Devliegher and Verstraete (1996), who showed that the increase of inorganic P in soils in the presence of earthworms was due to the production of alkaline phosphatases by earthworms (Satchell and Martin 1984;Park et al 1990) and a stimulation of microbial (acid) phosphatase production by earthworm activity (Satchell and Martin 1984).…”

Section: Phosphorus Dynamics and Availability In Earthworm Castsmentioning

confidence: 99%

Role of Soil Macrofauna in Phosphorus Cycling

Chapuis‐Lardy¹,

Bayon

Brossard

et al. 2010

Soil Biology

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Changes in microbial biomass C, N, and P and enzyme activities in soil incubated with the earthworms Metaphire guillelmi or Eisenia fetida

Cited by 203 publications

References 31 publications

Earthworms change the distribution and availability of phosphorous in organic substrates

Earthworms change the distribution and availability of phosphorous in organic substrates

Status of N P K in Vermicompost Prepared from Two Common Weed and Two Medicinal Plants

Role of Soil Macrofauna in Phosphorus Cycling

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