Weed seed bank composition under three long-term tillage regimes on a fine sandy loam in Atlantic Canada

Carter, M.R.; Ivany, J. A.

doi:10.1016/j.still.2005.08.002

Cited by 53 publications

(41 citation statements)

References 29 publications

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“…It is well known that the implementation of different tillage systems have different effects on soil nutrients, soil structure and temperature, water conservation, soil pH, and weed seed burial depth (Al-Kaisi et al 2005), all of which may affect the germination and growth of certain weed species and lead to changes in weed density and weed composition (Carter andIvany 2006, Sosnoskie et al 2006). …”

Section: Weed Density and Weed Biomassmentioning

confidence: 99%

Effect of tillage system on yield and weed populations of soybean ( Glycin Max L.)

Hosseini

Firouzi

Aminpanah

et al. 2016

An. Acad. Bras. Ciênc.

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Field experiment was conducted at Agricultural and Natural Resources Research Center of Golestan Province, Iran, to determine the effects of tillage system and weed management regime on yield and weed populations in soybean (Glycin max L.). The experimental design was a split plot where the whole plot portion was a randomized complete block with three replicates. Main plots were tillage system: 1-Notill row crop seeding, 2-No-till seed drilling, 3-Tillage with disc harrow and drill planting, 4-Tillage with chisel packer and drill planting. The subplots were weed management regimes: 1-Weed control with herbicide application, 2-Hand weeding, 3-Herbicide application plus hand weeding, and 4-Non-weeding. Results indicated that the main effects of tillage system and weed management regime were signifi cant for seed yield, pod number per plant, seed number per pod, weed density and biomass, while their interaction were signifi cant only for weed density, weed biomass, and seed number per pod. The highest grain yields (3838 kg ha ).

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Section: Weed Density and Weed Biomassmentioning

confidence: 99%

Effect of tillage system on yield and weed populations of soybean ( Glycin Max L.)

Hosseini

Firouzi

Aminpanah

et al. 2016

An. Acad. Bras. Ciênc.

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“…Without regular ploughing, selection for annual weeds decreases and selection for perennial weeds increases. On the other hand, in the experiments of Carter and Ivany (2005), direct seeding did not reduce the soil weed seed bank, but mouldboard ploughing for 14 years did reduce the weeds seed bank. Soil compaction caused by traffic (Jurik & Zhang ShuYu, 1999), or soil compaction in a first year's no-tillage system (Lampurlanés & Cantero-Martínez, 2003) changes dominant weed species in the community due to higher soil bulk density and penetration resistance.…”

Section: Introductionmentioning

confidence: 74%

“…On arable land, different weed species communities exist not only due to the different type of soil, but also because of cultivated plant diversity in agro-ecosystem, in response to different cultures, management intensity, and agro-ecosystems isolation from natural vegetation (van Elsen, 2000). Changing tillage practices consequently changes plant species composition, vertical distribution, and density of weed seed banks in agricultural soils (Buhler, 2002;Carter & Ivany, 2005). Pollard and Cussans (1981) reported that most weeds showed no consistent response to tillage and Derksen et al (1993) suggested that composition changes in weed communities were influenced more by environmental factors (location and year) than by tillage systems.…”

Section: Introductionmentioning

confidence: 99%

Weed Responses to Soil Compaction and Crop Management

Reintam¹,

Kuht²

2012

Weed Control

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“…Esta tendencia, también, se manifestó en profundidades de 5 a 10 cm y de 10 a 15 cm, donde resulta notorio el impacto de la labranza realizada durante el último trieño agrícola. Carter & Ivany (2006), detectaron diferencias en la distribución de las semillas de malezas en el suelo y encontraron interacción entre el sistema de labranza y el tamaño de la semilla. En este trabajo, donde se evaluaron sistemas de labranza profunda, superficial y siembra directa, se observaron cambios más notorios en las especies de semillas más pequeñas como Gnaphalium uliginosum (0,5 mm) y Chenopodium album (1 mm), en contraste con propágulos de Ranunculus repens (3 mm).…”

Section: Resultados Y Discusiónunclassified

Distribución vertical del banco de semillas de Euphorbia davidii Subils, en lotes agrícolas de la zona centro de la provincia de Buenos Aires, Argentina

2014

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RESUMEN -Euphorbia davidii Subils, es una maleza anual que está presente en la zona centro de la provincia de Buenos Aires, Argentina. Se realizaron estudios para determinar el banco de semillas de esta especie y su distribución vertical en lotes agrícolas de Azul y Olavarría. Se extrajeron 240 muestras de suelo, provenientes de 60 puntos distribuidos al azar, a cuatro niveles de profundidad: 0-5 cm, 5-10 cm, 10-15 cm y 15-20 cm. Las extracciones se realizaron dos veces al año, en mayo y en septiembre. Las muestras fueron procesadas y las semillas separadas por tamizado en húmedo. Se evaluó germinación y viabilidad mediante la prueba de trifeniltetrazolio. Se cuantificaron 30.000 y 15.000 semillas m -2 , para los lotes de Azul y Olavarría, respectivamente. En Olavarría, el 79% de las semillas se encontraron de 0-5 cm, de profundidad, el 14%, de 5-10 cm y el 7% restante de 10-20 cm. En Azul se observó una distribución vertical más homogénea. El 55 % de las semillas se encontraron de 0-5 cm de profundidad, un 24% de 5-10 cm, el 16% de 10-15 cm y el 5% en el muestreo más profundo. Las diferencias en la distribución se asociaron al manejo de los lotes. En ambas localidades la viabilidad de semillas, provenientes del estrato superficial, superó el 70%. Las semillas de estratos superficiales recolectadas en el lote de Olavarría, inmediatamente después de la dehiscencia, presentaron dormición, en cambio en las semillas provenientes del lote de Azul para el mismo momento de muestreo, no se observó dormición.Palabras-clave: lecherón, labranza, propágulos, viabilidad. ABSTRACT -Euphorbia davidii Subils a summer annual weed, that is present in the center

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Weed seed bank composition under three long-term tillage regimes on a fine sandy loam in Atlantic Canada

Cited by 53 publications

References 29 publications

Effect of tillage system on yield and weed populations of soybean ( Glycin Max L.)

Effect of tillage system on yield and weed populations of soybean ( Glycin Max L.)

Weed Responses to Soil Compaction and Crop Management

Distribución vertical del banco de semillas de Euphorbia davidii Subils, en lotes agrícolas de la zona centro de la provincia de Buenos Aires, Argentina

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