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| Registros recuperados: 452 | |
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| Bassemir, Ursula K.. |
| During 10 years a crop rotation schedule consisting of different crops (green fallow; intercrop: winter wheat; peas; intercrop: winter rye; summer barley) was combined with three different tillage techniques (plough, inverting to 30 cm depth, intensive; two-layer plough, inverting to 15 cm depth and loosening to 30 cm depth, reduced inverting; layer cultivator, loosening to 30 cm depth, conservation tillage). First results show a significant effect of crop on springtails. There is no significant effect of tillage techniques, although there is a tendency in slightly increased population density of springtails by using plough and layer cultivator. Further detailed results will be reported elsewhere. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology; Soil tillage. |
| Ano: 2005 |
URL: http://orgprints.org/3685/1/3685.pdf |
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| Koopmans, Dr. C.J.; Smeding, Dr. F.W.. |
| Learning how to manage beneficial soil biological processes may be a key step towards developing sustainable agricultural systems. We designed a conceptual framework linking soil management practices to important soil-life groups and soil fertility services like nutrient cycling, soil structure and disease suppression. We selected a necessary parameter set to gain insight between management, soil life and soil support services. The findings help to develop management practices that optimise yields, soil fertility and biodiversity in organic farming. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology; Soil quality. |
| Ano: 2008 |
URL: http://orgprints.org/11619/1/Koopmans_11619_ed.doc |
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| Attanasio, Cláudia Mira; Gandolfi, Sergius; Zakia, Maria José B.; Veniziani Junior, José Carlos Toledo; Lima, Walter de Paula. |
| Zonas ripárias são áreas de saturação hídrica, permanente ou temporária, cuja principal função é a proteção dos recursos hídricos de uma microbacia. Essa pesquisa comparou a adequação do uso do solo de dois cenários de planejamento agrícola de uma microbacia: o cenário convencional, representando o método usualmente empregado, que apenas considera as classes de capacidade de uso da terra, e o cenário hidrológico, que inclui a delimitação e avaliação das zonas ripárias. Um estudo de caso foi realizado na Microbacia do Ribeirão São João (3.656 ha), no município de Mineiros do Tietê (São Paulo, Brasil). Mapas de Classe de Capacidade de Uso da Terra e de Adequação do Uso do Solo foram elaborados, utilizando o Sistema de Informação Geográfica (SIG), para a... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Soil biology; Crop husbandry; Soil tillage; Soil; Landscape and recreation; Environmental aspects. |
| Ano: 2012 |
URL: http://orgprints.org/29043/1/Attanasio_A%20importancia.pdf |
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| Cania, Barbara; Vestergaard, Gisle; Krauss, Maike; Fliessbach, Andreas; Schloter, Michael; Schulz, Stefanie. |
| Background: Stable soil aggregates are essential for optimal crop growth and preventing soil erosion. However, tillage is often used in agriculture to loosen the soil, which disrupts the integrity of these aggregates. Soil aggregation can be enhanced by bacteria through their ability to produce exopolysaccharides and lipopolysaccharides. These compounds stabilize soil aggregates by “gluing” soil particles together. However, it has yet to be shown how tillage influences the bacterial potential to produce aggregate-stabilizing agents. Therefore, we sampled conventional and reduced tillage treatments at 0–10 cm, 10–20 cm and 20–50 cm from a long-term field trial in Frick, Switzerland. We compared the stable aggregate fraction of the soil and the bacterial... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Soil biology; Biodiversity and ecosystem services. |
| Ano: 2019 |
URL: http://orgprints.org/35214/1/Cania_EnvMic_2019.pdf |
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| LOCATELLI, M.; LEÔNIDAS, F. das C.; SAMPAIO, N. F.. |
| Nos últimos vinte anos, Rondônia tem sido alvo de um intenso movimento de migração e implantação de projetos oficiais de colonização. O resultado desses processos foi a intensificação da atividade agropecuária no Estado, responsável pela abertura de aproximadamente, 6.000.000 de hectares de florestas. Após um período de abertura acelerada da fronteira, houve uma redução no ritmo de ocupação. Recentemente, a colonização em solos de menor fertilidade não permitiu sustentação econômica adequada a grande parte dos agricultores e o empobrecimento do campo passou a ser evidente. Além da baixa fertilidade dos solos, a grande incidência de doenças e os baixos preços dos produtos agrícolas, também influenciaram no insucesso econômico. Nos últimos anos, houve um... |
| Tipo: Folhetos |
Palavras-chave: Agroecologia; Rondônia; Amazônia Ocidental; Western Amazon; Pesquisa Agrícola; Fertilidade do Solo; Biologia do Solo; Desenvolvimento Socio-Econômico; Agricultural research; Soil biology; Soil fertility; Agroecology; Socioeconomic development. |
| Ano: 1992 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/697883 |
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| Sarma, Pallab; Saikia, Pinki; Baruah, Tapan. |
| The present study was conducted at the Dryland Technology Park ,All India Coordinated Research Project for Dryland Agriculture, Biswanath Chariali Center, Biswanath College of Agriculture, Assam Agricultural University, Biswanath Chariali, District sonitpur Assam, India during 2012 -2013 with the objective to find out the efficiency of the low cost vermicomposting unit as compared to conventional units involving higher cost of construction. The experiment was laid out in a randomized block design (RBD) with 4 treatments i.e T1: Vermicomposting with Perionyx excavates in concrete pits (Control) with dimension 2.5 m(L) X 0.91 m (B) X 0.91 m(D),T2: Vermicomposting with Perionyx excavates in low cost vermicomposting unit with dimension of 2.5 m(L) X 0.91 m... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology; Technology assessment; Biodiversity and ecosystem services; Farm nutrient management. |
| Ano: 2014 |
URL: http://orgprints.org/23720/1/23720_MM.pdf |
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| Souza,Sheila Trierveiler de; Cassol,Paulo Cezar; Baretta,Dilmar; Bartz,Marie Luise Carolina; Klauberg Filho,Osmar; Mafra,Álvaro Luiz; Rosa,Marcio Gonçalves da. |
| ABSTRACT Intensive land use can affect macrofaunal biodiversity, which is a property that can be used as a soil quality indicator. This study evaluated the abundance and diversity of soil macrofauna and its relation to soil chemical and physical properties in five land use systems (LUS) in the eastern region of Santa Catarina. The following LUS were studied: native forest (NF), eucalyptus plantations (EP), perennial pasture (PP), integrated crop-livestock (ICL), and no-tillage cropping (NT). The macrofauna was quantified in 0.25 × 0.25 m monoliths and sampled in the 0.00-0.20 m layer in the summer (Jan/2012) and winter (Jul/2012). For each LUS, nine points were sampled, distributed in a 30 × 30 m sampling grid. After screening the edaphic macrofauna... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Soil biology; Soil quality. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100417 |
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| Schjønning, P.. |
| I økologisk jordbrug anvendes alsidige sædskifter, efterafgrøder og/eller tildeling af husdyrgødning/halm/kompost. Alt dette er med til at fremme mængden af organisk stof i jorden, som normalt forventes at spille en stor rolle for strukturen og poresystemet (jordens hulrum). FØJO har gennemført en række undersøgelser for at afdække, hvor meget og hvordan man som landmand kan påvirke forholdene. De langvarige forsøg med forskellig gødskning på Askov Forsøgsstation giver et godt grundlag for at vurdere effekten af organisk stof på jordens poresystem. Ca. 100 års forsøg uden tilførsel af nogen form for gødning har resulteret i et indhold af organisk stof i jorden på kun ca. 1% (svarende til et humusindhold på ca. 1,7%). Brug af mineralsk gødning (NPK) har... |
| Tipo: Newspaper or magazine article |
Palavras-chave: Crop combinations and interactions; Soil biology; Soil quality; Composting and manuring. |
| Ano: 2004 |
URL: http://orgprints.org/7757/1/7757.doc |
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| Scheller, Edwin; Raupp, Joachim. |
| Commencing in 1980, a long-term experiment is carried out to compare mineral fertilizers (MIN), composted manure (CM) and composted manure with application of biodynamic preparations (CMBD) at three different fertilizer application rates. With mineral fertilizer the lowest contents of 0.80% C and 0.069% N, with manure 0.90% C and 0.080% N, and with manure and biodynamic preparations 1.08% C and 0.094% N were achieved in the topsoil. 42.9 to 53.7% of Nt was bound in 18 protein amino acids including asparagine and glutamine. Amino acid contents in the hydrolysates of the topsoil were significantly different according to fertilizer type: MIN < CM < CMBD. The higher contents in manure fertilized plots were observed even at the lowest rate of fertilizer... |
| Tipo: Journal paper |
Palavras-chave: Soil biology; Composting and manuring. |
| Ano: 2005 |
URL: http://orgprints.org/4840/1/kein%2Ddokument.pdf |
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| Eekeren, N.J.M. van; Smeding, F.W.; Vries, F.T.; . Bloem, J.. |
| The below ground biodiversity of soil organisms plays an important role in the functioning of the the soil ecosystem, and consequently the above ground plant production. The objective of this study is to investigate the effect of grass or grass-clover in combination with fertilisation on the soil food web structure. In 2003 a fertilisation trial on grass and grassclover was sampled for soil organisms. Data were agglomerated in seven trophic groups, and classified by means of TWINSPAN. TWINSPAN clearly distinguished three main soil food web structures: Type 1: Grass plots with a high biomass of bacteria and fungi; Type 2: Grass-clover plots with a high biomass of earthworms; Type 3: Grass and grass-clover plots, that received relativily high... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology. |
| Ano: 2005 |
URL: http://orgprints.org/9217/1/1685.pdf |
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| Løes, Anne-Kristin; Johansen , Anders; Pommeresche, Reidun; Riley, Hugh. |
| Utilizing animal slurry to produce biogas may reduce fossil fuel usage and emissions of greenhouse gases. However, there is limited information on how the recycling of digested slurry as a fertilizer impacts soil fertility in the long run. This is of concern because organic matter in the slurry is converted to methane, which escapes the on-farm carbon cycle. In 2010, a study of this question was initiated on the organic research farm in Tingvoll, Norway. So far, a biogas plant has been built, producing anaerobically digested slurry to be compared with undigested slurry in perennial ley and arable crops. Effects on crop yields, soil fauna, microbial communities, soil structure, organic matter and nutrient concentrations are measured. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Soil biology; Composting and manuring. |
| Ano: 2011 |
URL: http://orgprints.org/19139/1/Poster_Loes_et_al_NJF_2011.pdf |
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| Mäder, Paul; Edenhofer, Stephan; Boller, Thomas; Wiemken, Andres; Niggli, Urs. |
| Arbuscular mycorrhizal (AM) root colonization was studied in a long-term field trial in which four farming systems currently in use in Switzerland were continuously applied to a randomized set of plots at a single field site from 1978 till 1993. There were two low-input farming systems (organic and bio-dynamic) and two high-input (conventional) farming systems (according to Swiss guidelines of integrated plant production with and without farmyard manure). The systems had an identical 7-year crop rotation and tillage scheme and differed essentially only in the amount and type of fertilizer supplied and in plant protection management. The percentage of root colonization by AM fungi was determined in field samples 2–3 times over the growing season in crops in... |
| Tipo: Journal paper |
Palavras-chave: Soil biology. |
| Ano: 2000 |
URL: http://orgprints.org/26771/1/Maeder_et_al_2000_BFS.pdf |
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| Hodge, A; Gosling, Paul; Goodlass, G; Bending, Gary. |
| Arbuscular mycorrhizal fungi (AMF) are potential contributors to plant nutrition and pathogen suppression in low input agricultural systems, although individual species of AMF vary widely in their functional attributes. Recent studies at HRI and elsewhere have suggested that in some agricultural systems inoculum of AMF is substantially lower under conventional management relative to that under organic management. Further studies have suggested that conventional management selects AMF communities with limited benefits to their plant hosts relative to those in organic systems. There is a need to investigate the generality of these findings, and their implications for the productivity of organic systems, particularly during the period following conversion to... |
| Tipo: Report |
Palavras-chave: Soil biology; Biodiversity and ecosystem services; Crop husbandry. |
| Ano: 2004 |
URL: http://orgprints.org/6772/1/OF0333_2173_FRP.pdf |
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| Registros recuperados: 452 | |
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