Vertical distribution of nematodes in arable soil under grass (Festuca pratensis) and barley (Hordeum distichum)

  title={Vertical distribution of nematodes in arable soil under grass (Festuca pratensis) and barley (Hordeum distichum)},
  author={Bj{\"o}rn Sohlenius and Andr{\'a}s S{\'a}ndor},
  journal={Biology and Fertility of Soils},
SummaryThe connection between faunal composition and soil factors is discussed in this study on vertical distribution of soil nematodes under grass and barley. The investigation was undertaken on the field site of a Swedish integrated research project “Ecology of Arable Land. The Role of Organisms in Nitrogen Cycling”. Higher nematode number (7.6 × 106 m−2) and biomass (340 mg dry wt. m−2) were found under a 4-year-old grass ley than under barley (5.0 × 106 m−2; biomass, 136 mg dry wt. m−2… 

Carbon and nitrogen budgets of nematodes in arable soil

A higher relative contribution by bacterial-feeding nematodes to the C and N fluxes and a higher turnover rate of the nematode biomass is an indication of more rapid nutrient circulation in the annual than in the perennial cropping systems.

Vertical Distribution of Root Lesion Nematode (Pratylenchus thornei) under Chickpea- Maize Crop Rotation

The Pratylenchus thornei have been reported one of the biotic stress which mainly rechangable for yield losses to the tube of 40 % in intolerant cereals and legumes in South Australia (Nicol, 1996).

Vertical distribution of plant nematodes in an aquic brown soil under different land uses

It is showed that it is essential to sample at a certain depth according to the vertical distribution information of different genera of plant nematodes in adequately assessing the population size of plant Nematodes.

Impact of Nematode pest management strategies on Nematode communities in tomato production systems in Zimbabwe

Nematodes and the indices derived from the analysis of their community structures have demonstrated that changes in soil management are either beneficial or deleterious to the soil ecology and are well suited to the role of bioindicators for soil health in agroecosystems.

Vertical Distribution of the Plant-Parasitic Nematode, Pratylenchus penetrans, Under Four Field Crops.

The percentage of nematodes per soil layer was independent of the sampling date, indicating that a defined optimum sampling depth will be applicable throughout all seasons and the cumulative vertical distribution, modeled with a logistic equation, can be used to estimate the sampling error when samples are collected at different depths.

Responses of nematode communities to different land uses in an aquic brown soil

Faunal profiles revealed that environmental stability and the homeostasis in the abandoned cropland and woodland lead to higher levels of community structure, and the soil food web tends to succeed to maturity.

Vertical Distribution of Bacterivorous Nematodes under Different Land Uses.

Differences in vertical distribution of dominant genera of bacterivorous nematodes to 150-cm depth in an aquic brown soil was compared after 14 years of four contrasting land uses and suggested that Cephalobus and Prismatolaimus in the CR treatment, and Chiloplacus and Prismatography in the WL treatment, were insensitive to soil properties measured.

Nematode abundance and diversity in sugarcane fields in Brazil

The abundance of plant-parasitic nematodes was higher in sites with lower soil bulk density and higher porosity, clay, organic matter, and water contents as those in the southern sites, reflecting edaphic climatic conditions.



Fungi, bacteria and protozoa in soil from four arable cropping systems

Twenty samplings over 3 years in B120 and in GL indicated higher numbers of bacteria and protozoa during the growing season, except for periods with moisture stress, and the grass ley contained significantly (P < 0.05)Higher numbers of amoebae and bacterial numbers and biomass and total and FDA-active hyphal lengths were also higher or equal but not significantly so.

Experimental Site of the ‘Ecology of Arable Land’ Project

Abstract In 1979 a major integrated research project ‘The Ecology of Arable Land’ was initiated, in which recent trends in Swedish crop husbandry are reflected. These trends include less carbon input


(1) In a 20-25 year old stand of Scots pine located in Central Sweden different plots were irrigated, and treated with fertilizers in dry conditions and in combination with irrigation. The effects of

Effect of Range Condition on Density and Biomass of nematodes in a Mixed Prairie Ecosystem.

Results indicate that nematode constitute a major portion of the faunistic biomass in a mixed prairie ecosystem and the effects of range condition and depth of sampling on nematodes density and biomass over a 6-year study period.

Inter-relationships between nematode and plant communities in agricultural ecosystems

A carbon budget for nematodes, rotifers and tardigrades in a Swedish coniferous forest soil

Nematodes, rotifers and tardigrades from a Swedish pine forest soil were investigated in a monthly sampling programme lasting for one year. The monthly mean values of number, biomass and oxygen

Nematode Density and Biomass in an Annual Grassland Ecosystem

The nematode community structure was examined in grazed and ungrazed annual-plant rangeland on the US/IBP Grassland Biome San Joaquin Site located in the foothill-grasslands of central California, indicating that the critical factors controlling nematodes density and community structure on this annual grassland are not grazing but soil moisture and temperature.

Nematode community structure in a vineyard soil.

Of the plant-parasitic nematodes, the variability in distribution among vines was greatest for Paratylenchus hamatus and least for Meloidogyne spp.

Soil nematodes in terrestrial ecosystems.

  • G. Yeates
  • Biology, Medicine
    Journal of nematology
  • 1979
Although soil trematodes probably contribute less than 1% to soil respiration they may play an important role in nutrient cycling in the soil through their influence on bacterial growth and plant nutrient availability.

Cycling of nitrogen in modern agricultural systems

SummaryAgro-ecosystems have developed from mixed- and multiple-cropping systems with relatively closed N cycles to intensively managed monocultures with large N inputs in the form of commercial