Weed seedbank responses to 12 years of applications of composts, animal slurries or mineral fertilisers

Cauwer, Benny De; Berge, K Van Den; Cougnon, Mathias; Bulcke, Robert; Reheul, Dirk

doi:10.1111/j.1365-3180.2010.00796.x

Cited by 26 publications

(26 citation statements)

References 21 publications

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“…De Cauwer et al . () also noted that nitrogen fertilizers alter weed species composition and influence weed crop competition. Elucidating the factors that influence weed densities is important in the development of integrated weed management.…”

Section: Discussionmentioning

confidence: 98%

Influence of selected soil properties, soil management practices and socio‐economic variables on relative weed density in a hand hoe‐based conservation agriculture system

Mavunganidze

Madakadze

Nyamangara

et al. 2016

Soil Use and Management

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Weeds are problematic to the smallholder farmers, who practise conservation agriculture (CA) in sub‐Saharan Africa, owing to an apparent lack of appropriate weed management strategies. We investigated weed dynamics under the planting basin (PB) system (hand hoe‐based CA) to assist the design of appropriate weed management options. On‐farm experiments were conducted under semi‐arid conditions in Zimbabwe to determine the effects of 11 selected soil properties, four socio‐economic variables and two soil management practices on relative weed density. Weed counts were made according to species at 3, 6 and 9 weeks after crop emergence. Multivariate ordination techniques and a quadratic model, developed with partial least squares, showed that Richardia scabra increased with sand content in the soil. Density of R. scabra and Melinis repens also increased with topsoil potassium content. When ranked according to importance, relative weed density was most dependent on sand content followed by topsoil potassium, nitrate, clay and silt content, and training related to crop production. Soil physico‐chemical properties, therefore, had greater influence on relative weed density than socio‐economic variables and soil management practices. We concluded that variability in weed density under the PB system was not necessarily determined by tillage alone, but was also a consequence of soil properties and to a lesser extent of socio‐economic variables and soil management practices. Understanding soil properties and management practices, which determine weed variability, helps in the design of general weed management recommendations that can be used by smallholders, most of whom do not have access to field‐specific advice.

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Section: Discussionmentioning

confidence: 98%

Influence of selected soil properties, soil management practices and socio‐economic variables on relative weed density in a hand hoe‐based conservation agriculture system

Mavunganidze

Madakadze

Nyamangara

et al. 2016

Soil Use and Management

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“…Mineral fertilization and organic amendments differ in their nutrient release, with the latter having slower rates of nutrient release. Different nutrient release of fertilizers has been reported as an important factor that influences weed seedbanks (De Cauwer et al 2010), and it may have affected the soil seedbank of the DOK longterm trial.…”

Section: Resultsmentioning

confidence: 99%

“…The affinity of species to nitrogen levels has been quantified by Ellenberg (1991) and may allow relating the ecological preferences of species with the availability of nitrogen. The nature of fertilizer inputs, which differ in the rate of nutrient release, may also represent a potential filter during the assembly of weed communities (De Cauwer et al 2010). Hence, both herbicide application and fertilization may act as assembly filters that select against those species with less adapted traits (Albrecht 2003;Menalled et al 2001;Ryan et al 2010).…”

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confidence: 99%

“…This may influence the community assembly toward species of less conservation interest. Fertilization can also affect the diversity and the composition of weed seedbanks (De Cauwer et al 2010). Higher doses of fertilizers may promote more nitrophilous and competitive weed species, which have the ability to take up nutrients faster (Moonen and Bàrberi 2004;Robinson and Sutherland 2002).…”

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confidence: 99%

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Long-Term Management Affects the Community Composition of Arable Soil Seedbanks

et al. 2016

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The intensification of farming practices has reduced weed infestations, but it has also led to a reduction in weed diversity and changes in species composition. These effects are well described for aboveground flora; however, it is less clear how these effects might be expressed in the soil weed seedbank. We evaluated the effects of different long-term farm management strategies on the weed seedbank abundance, diversity, and community composition in the DOK (bioDynamic, bioOrganic, and Konventionell) field trial established in 1978 at Therwil, Switzerland. The trial compares biodynamic, organic, and conventional farming systems, which mainly differ in fertilization, weed control strategies, and pest control. The species richness and seed abundance of the weed seedbank were higher in the organic and biodynamic systems compared with the conventional ones. The different farming systems favored shifts in species assemblages, because specific management practices, such as herbicide application and type of fertilization, acted as filters that selected against certain species but promoted others that were more adapted.

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“…De Cauwer et al (2010) state that weed seed bank density and composition is related to mineral fertilisation, by mineral nitrogen mainly. It was not confi rmed in a case of Kolíňany locality.…”

Section: Resultsmentioning

confidence: 99%

The weed seed bank assessment in two soil depths under various mineral fertilising

Hunková¹,

Winkler²,

Demjanová³

2014

Acta Univ. Agric. Silvic. Mendelianae Brun.

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HUNKOVÁ, E., WINKLER, J., DEMJANOVÁ, E.: The weed seed bank assessment in two soil depths under various mineral fertilising. Acta univ. agric. et silvic. Mendel. Brun., 2011, LIX, No. 5, pp. 105-112 The fi eld trial at the experimental station of Slovak Agricultural University in Nitra -Kolíňany (Slovak Republic, maize growing region, Haplic Luvisol and Stagni-Haplic Luvisol) in 1997 year was established. Experiments were based on 14 ha area (424 x 432.2 m) by long strips method. The impact of diff erent mineral fertilisers on six model crops was observed: winter wheat, spring barley, sunfl ower, winter oilseed rape, maize and sugar beet. weeds, mineral fertilising, weed seed bank Weedy plants overcome spatial and time distances in the fruits and seeds form; thereby, they determinate the state and weed infestation changes on arable land. The increase of weed population growth is conditioned by weed seeds and fruits input inside of arable land. It is accomplished by weed seeds dropping on concrete site, by seeds from organic fertilisers, by seeds for sowing and by uncontrollable inputs (wind, undomesticated animals). The reduction of weed infestation is given by decrease of dropping weed seeds on concrete site, by weed suppression and control, by increase of soil's self-cleaning ability and by weed seeds minimizing in materials that transport seeds (organic fertilisers, seeds for sowing). Weed infestation decreases when the reduction of seeds exceeds their entry into the soil, only. Viable seeds in the soil's reserve (i.e. weed seed bank) are the fi rst assumption of actual weed infestation (Dvořák, Smutný, 2003).Weed fruits and seeds are a viable reservoir in the upper part of the soil profi le, which determinates the composition of weed fl ora in the concrete region (Caetano et al., 2001). Management of agricultural systems has immediate and long-lasting eff ects for elements of weed coverage, population and diversity. Development of programs for integrated weed control requires a clear understanding of factors and mechanisms determinative the weed community dynamics in agroecosystems (Menalled et al., 2001).The goal of this work was to discover the impact of mineral fertilisation, years of research, and the depth of weed seed off takes on weed seed soil bank in Kolíňany locality.

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Weed seedbank responses to 12 years of applications of composts, animal slurries or mineral fertilisers

Cited by 26 publications

References 21 publications

Influence of selected soil properties, soil management practices and socio‐economic variables on relative weed density in a hand hoe‐based conservation agriculture system

Influence of selected soil properties, soil management practices and socio‐economic variables on relative weed density in a hand hoe‐based conservation agriculture system

Long-Term Management Affects the Community Composition of Arable Soil Seedbanks

The weed seed bank assessment in two soil depths under various mineral fertilising

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