From monoculture to the Norfolk system: assessment of arbuscular mycorrhizal fungi communities associated with different crop rotation systems

Symbiosis ◽  
2014 ◽  
Vol 64 (3) ◽  
pp. 115-125 ◽  
Author(s):  
Franco Magurno ◽  
Zita Sasvári ◽  
Katalin Posta
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Crop Rotation ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
System Assessment

scholarly journals Impact of Land Use Intensity on the Species Diversity of Arbuscular Mycorrhizal Fungi in Agroecosystems of Central Europe

2003 ◽  
Vol 69 (5) ◽  
pp. 2816-2824 ◽  
Author(s):  
Fritz Oehl ◽  
Ewald Sieverding ◽  
Kurt Ineichen ◽  
Paul Mäder ◽  
Thomas Boller ◽  
...  
Keyword(s):  
Land Use ◽  
Arbuscular Mycorrhizal Fungi ◽  
Crop Rotation ◽  
Mycorrhizal Fungi ◽  
Root Colonization ◽  
Arbuscular Mycorrhizal ◽  
Soil Samples ◽  
Land Use Intensity ◽  
High Input ◽  
Continuous Maize

ABSTRACT The impact of land use intensity on the diversity of arbuscular mycorrhizal fungi (AMF) was investigated at eight sites in the “three-country corner” of France, Germany, and Switzerland. Three sites were low-input, species-rich grasslands. Two sites represented low- to moderate-input farming with a 7-year crop rotation, and three sites represented high-input continuous maize monocropping. Representative soil samples were taken, and the AMF spores present were morphologically identified and counted. The same soil samples also served as inocula for “AMF trap cultures” with Plantago lanceolata, Trifolium pratense, and Lolium perenne. These trap cultures were established in pots in a greenhouse, and AMF root colonization and spore formation were monitored over 8 months. For the field samples, the numbers of AMF spores and species were highest in the grasslands, lower in the low- and moderate-input arable lands, and lowest in the lands with intensive continuous maize monocropping. Some AMF species occurred at all sites (“generalists”); most of them were prevalent in the intensively managed arable lands. Many other species, particularly those forming sporocarps, appeared to be specialists for grasslands. Only a few species were specialized on the arable lands with crop rotation, and only one species was restricted to the high-input maize sites. In the trap culture experiment, the rate of root colonization by AMF was highest with inocula from the permanent grasslands and lowest with those from the high-input monocropping sites. In contrast, AMF spore formation was slowest with the former inocula and fastest with the latter inocula. In conclusion, the increased land use intensity was correlated with a decrease in AMF species richness and with a preferential selection of species that colonized roots slowly but formed spores rapidly.

scholarly journals Crop rotation biomass and arbuscular mycorrhizal fungi effects on sugarcane yield

2010 ◽  
Vol 67 (6) ◽  
pp. 692-701 ◽  
Author(s):  
Edmilson José Ambrosano ◽  
Rozario Azcón ◽  
Heitor Cantarella ◽  
Gláucia Maria Bovi Ambrosano ◽  
Eliana Aparecida Schammass ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Helianthus Annuus ◽  
Crop Rotation ◽  
Arachis Hypogaea ◽  
Vigna Radiata ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Saccharum Spp ◽  
Arachis Hypogaea L ◽  
Sugarcane Yield

A cana-de-açúcar (Saccharum spp.) vem sendo cultivada no Brasil para produção de açúcar e agroenergia. Em seu sistema de produção, após um ciclo de 4 a 8 anos, é possível a rotação com plantas de cobertura, antes do seu replantio, para melhoria do solo e geração de renda. Estudou-se a caracterização e produtividade de biomassa de leguminosas (como adubos-verdes) e girassol (Helianthus annuus L.), a ocorrência natural de micorrizas, o teor de açúcar e a produtividade em colmos da cana-de-açúcar IAC 87-3396 e a viabilidade econômica desse sistema com cultivo após as opções de rotação, com quantificação da produtividade durante três cortes consecutivos. O amendoim (Arachis hypogaea L.) cv. IAC-Caiapó, girassol cv. IAC-Uruguai e mucuna-preta (Mucuna aterrimum Piper and Tracy) foram as culturas que apresentaram maior percentagem de colonização por fungos micorrízicos. O girassol foi a planta de cobertura que mais extraiu nutrientes do solo, seguido por amendoim (Arachis hipogaea L.) cv. IAC-Tatu e feijão-mungo (Vigna radiata L. Wilczek). A colonização por fungos micorrízicos mostrou correlação positiva com a altura de plantas de cana no primeiro corte (p = 0,01 e R = 0,52), mas não se correlacionou com a produtividade de colmos ou açúcar. No primeiro corte, o girassol foi a cultura de rotação que ocasionou o maior aumento de produtividade, da ordem de 46% em colmos e de 50% na quantidade de açúcar, em comparação com a testemunha. Com exceção dos amendoins, todas as culturas em rotação aumentaram a renda líquida do sistema na média de três cortes de cana-de-açúcar.

Arbuscular mycorrhizal fungi and soil aggregation in a no-tillage system with crop rotation

2020 ◽  
Vol 183 (4) ◽  
pp. 482-491 ◽  
Author(s):  
Mara Regina Moitinho ◽  
Carolina Fernandes ◽  
Priscila Viviane Truber ◽  
Adolfo Valente Marcelo ◽  
José Eduardo Corá ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Crop Rotation ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Soil Aggregation ◽  
No Tillage ◽  
Tillage System

scholarly journals Inoculation with Arbuscular Mycorrhizal Fungi or Crop Rotation with Mycorrhizal Plants Improves the Growth of Maize in Limed Acid Sulfate Soil

2010 ◽  
Vol 13 (1) ◽  
pp. 74-79 ◽  
Author(s):  
Masao Higo ◽  
Katsunori Isobe ◽  
Dong-Jin Kang ◽  
Kazuhiro Ujiie ◽  
Rhae Drijber ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Crop Rotation ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Acid Sulfate Soil ◽  
Acid Sulfate ◽  
Mycorrhizal Plants

Mycorrhizal colonization of flax under long-term organic and conventional management

2004 ◽  
Vol 84 (4) ◽  
pp. 1097-1099 ◽  
Author(s):  
M. H. Entz ◽  
K. R. Penner ◽  
J. K. Vessey ◽  
C. D. Zelmer ◽  
J. R. Thiessen Martens
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Crop Rotation ◽  
Mycorrhizal Fungi ◽  
Management System ◽  
Arbuscular Mycorrhizal ◽  
Mycorrhizal Colonization ◽  
P Availability ◽  
Weed Species ◽  
Wild Mustard

Arbuscular mycorrhizal fungi are of particular interest in organic agricultural systems. We studied the effects of crop rotation and crop management system (conventional vs. organic) on mycorrhizal colonization of flax roots, in the 12th year of a long-term crop rotation trial. Colonization was higher in organic treatments than conventional, possibly due to decreased P availability. There was a highly significant rotation × management system interaction, which may be explained by differences in the abundance of mycorrhizal and non-mycorrhizal weed species between the two management systems. Further research is required before stronger conclusions can be made. Key words: Crop rotation, arbuscular mycorrhizal fungi, flax, wild mustard, host-plant dynamics, organic agriculture

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