Soil nematode community, organic matter, microbial biomass and nitrogen dynamics in field plots transitioning from conventional to organic management

Briar, Shabeg S.; Grewal, Parwinder S.; Somasekhar, Nethi; Stinner, Deborah; Miller, Sally A.

doi:10.1016/j.apsoil.2007.08.004

Cited by 132 publications

(73 citation statements)

References 48 publications

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“…These results may be explained by the fact that soil fauna ingested decomposed organic matter such as sheep manure with high nutrients and content of soil humus. This process, in turn, likely affected the bacterivorous (i.e., Nematodes) and fungivorous (i.e., Onychiuridae and Entomobryidae) soil fauna and increased the diversity and abundance of soil fauna [33,34], which is in accordance with the findings of this research (Table 2, Figure 3). However, compared with the results found in grey desert soil area in September 2004 in Xinjiang Province [22], the individuals and communities of soil fauna (especially Nematodes, Collembola, Oribatida and Mesostigmata) in this study were significantly increased with the combination of inorganic fertilizer and organic manure or crop residues returning.…”

Section: The Link Between Soil Fauna and Different Fertilization Regimessupporting

confidence: 81%

Diversity and Abundance of Soil Animals as Influenced by Long-Term Fertilization in Grey Desert Soil, China

et al. 2015

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Abstract:The relationship between soil fauna and different fertilizer management practices is of growing concern. The aim of this research was to investigate the response of soil fauna to fertilization regimes, to explore the relationships among the community of soil animals, soil moisture and crop yields. The application of organic fertilizers (i.e., sheep manure or crop residues) increased crop yields and promoted the number of individuals and species of soil fauna owing to the exogenous organic matter that fertilizers provided for the survival and development of soil fauna. Furthermore, the treatments that applied sheep manure (i.e., sheep manure only or nitrogen, phosphorus, potassium and sheep manure plus) were significantly beneficial for increasing crop yields and diversity of soil fauna compared to treatments with crop residues returned (i.e., crop residues returned only or nitrogen, phosphorus, potassium and crop residues returned to the field) (p < 0.05) due to the response of soil fauna to diverse exogenous nutrients and the effect of soil fertility. Therefore, the finding that soil fauna abundance is significantly positively correlated with soil moisture and crop yield may mean the effects of fertilizer applications on soil animals were partly masked by the soil moisture and crop yield. OPEN ACCESSSustainability 2015, 7 10838

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Section: The Link Between Soil Fauna and Different Fertilization Regimessupporting

confidence: 81%

Diversity and Abundance of Soil Animals as Influenced by Long-Term Fertilization in Grey Desert Soil, China

et al. 2015

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“…In addition, higher abundances of protozoa and bacterivores in NT were related to the increase in bacteria (Fu et al, 2000;Briar et al, 2007;Rønn et al, 2012). The lower predator biomass in CT (Supplementray Table S1) can partially explain the greater proportion of herbivores compared to the NT and RT (Fig.…”

Section: Effects Of Tillage On Soil Microbial and Nematode Communitiesmentioning

confidence: 99%

Conservation tillage positively influences the microflora and microfauna in the black soil of Northeast China

Zhang

Lü

et al. 2015

Soil and Tillage Research

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“…According to Kaplan and Noe (1993) the use of the optimal amendment rate seems to be of primary importance indicating that the nematicidal activity is regulated by dose-response functions. Although various organic amendments can have diverse effects on soil properties and nematode communities (Nahar et al, 2006;Hu & Qi, 2010), all amendments tend to increase availability of plant nutrients, microbial biomass and bacterivore and fungivore nematodes (Briar et al, 2007). Chicken manure is also known to be effective in the control of root knot nematodes (Akhtar, 1997;Lopez-Pérez et al, 2005;Oka et al, 2000;D'Addabbo et al, 2003) and the mode of action is thought to be based on the release of toxic levels of ammonium, although alterations in soil structure, the stimulation of antagonistic organisms, and the increase of plant tolerance also may play a role (Oka et al, 2000;Lopez-Pérez et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Nematicidal and fertilizing effects of chicken manure, fresh and composted olive mill wastes on organic melon

et al. 2012

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The fertilizing and nematicidal effects of three organic amendments were evaluated in a pot experiment on melon plants infested by the root-knot nematode Meloidogyne incognita. A soil artificially infested with 4 eggs and juveniles/ ml soil of the nematode was amended with: a) virgin olive pomace (VOP); b) composted olive pomace (COP); c) chicken manure based fertilizer (CM) and d) chicken manure based fertilizer combined with the biological control agent Paecilomyces lilacinus strain 251, brand name BioAct WG (CMB). VOP was applied at doses of 11 (VOP-A), 22 (VOP-B) and 44 t/ha (VOP-C); COP at 4.5 (COP-A), 9 (COP-B) and 18 t/ha (COP-C); CM at 3 t/ha and CMB at 3 t/ha combined with 4 kg/ha of BioAct WG. Untreated soil was used as control. The treatments CM, CMB, VOP-B and COP-B were established on the basis of N requirement of melon plants (120 kg/ha) taking into account soil and amendments N availability. Two weeks later amendment application and nematode inoculation, the soil was poured in 4.8 l clay pots which were arranged in a greenhouse according to a randomized block design with ten replications for each treatment. A one-month old melon seedling (cv. Galia) was transplanted in each pot and organic farming management practices were used during the growing period. At the end of the experiment, 60 days after transplant, plants were uprooted and height, fresh and dry shoot and root weights were recorded. Root gall index, on the roots, caused by the nematode attack, was estimated according to a 0–5 scale. Final nematode population density and reproduction rate were also calculated for each pot. All data were subjected to statistical analysis of variance (ANOVA) and means compared according to Least Significant Difference’s Test. Nematode population and root infestation were significantly suppressed by the addition of all amendments, compared to untreated control. However, CM and CMB resulted in a total more suppressive effect and in a significantly higher plant growth in comparison to all the other treatments. A significant correlation was found between root gall index and eggs and juveniles/g root and final nematode population density. No signifycant correlations were found between nematological parameters or plant growth parameters and amendment doses.

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Soil nematode community, organic matter, microbial biomass and nitrogen dynamics in field plots transitioning from conventional to organic management

Cited by 132 publications

References 48 publications

Diversity and Abundance of Soil Animals as Influenced by Long-Term Fertilization in Grey Desert Soil, China

Diversity and Abundance of Soil Animals as Influenced by Long-Term Fertilization in Grey Desert Soil, China

Conservation tillage positively influences the microflora and microfauna in the black soil of Northeast China

Nematicidal and fertilizing effects of chicken manure, fresh and composted olive mill wastes on organic melon

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