Preliminary trials using a white clover (<i>Trifolium repens</i> L.) understorey to supply the nitrogen requirements of a cereal crop

Jones, L. G.

doi:10.1111/j.1365-2494.1992.tb02282.x

Cited by 16 publications

(9 citation statements)

References 7 publications

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“…Yield losses were predominantly due to the presence of the cover crops during crop establishment, particularly during spring (Carof et al 2007;Hiltbrunner et al 2007). Intercropping frost-sensitive cover crops appears to be a less risky option (study case 3) compared to permanent cover (study case 5) and could release nitrogen for the cash crop needs during spring (Jones 1992;Thorsted et al 2006) or the following year (White and Scott 1991).…”

Section: Management Options Promoting Weed Regulation By Other Plantsmentioning

confidence: 98%

Biodiversity-based options for arable weed management. A review

Petit

Cordeau

Chauvel

et al. 2018

Agron. Sustain. Dev.

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In the context of a shift towards pesticide reduction in arable farming, weed management remains a challenging issue. Integrated Weed Management currently recommends agronomic practices for weed control, but it does not integrate the use of biodiversitybased options, enhancing the biological regulation of weeds. Here, wereview existing knowledge related to three potentially beneficial interactions, of crop-weed competition, weed seed granivory, and weed interactions with pathogenic fungi. Our main finding are the following : (1) promoting cropped plant-weed competition by manipulating cropped cover could greatly contribute to weed reduction ; (2) weed seed granivory by invertebrates can significantly lower weed emergence, although this effect can be highly variable because seed predation is embedded within complex multitrophic interactions that are to date not fully understood ; (3) a wide range of fungi are pathogenic to various stages of weed development, but strain efficacy in field trials does not often match that in controlled conditions. We present a framework that superimposes biodiversity-based options for weed biocontrol on a classical Integrated Weed Management system. We then describe the current state of knowledge on interactions between agronomic practices and the organisms at play and between the different biological components of the system. We argue that further advances in our understanding of biodiversity-based options and their performance for weed biocontrol will require farm-scale experimental trials.

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Section: Management Options Promoting Weed Regulation By Other Plantsmentioning

confidence: 98%

Biodiversity-based options for arable weed management. A review

Petit

Cordeau

Chauvel

et al. 2018

Agron. Sustain. Dev.

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“…The agronomic rationale for the wheatclover cropping system was elaborated by Jones (1992) and Jones & Clements (1993) and further developments were discussed by Clements & Donaldson (1997. Briefly, a perennial sward of white clover is established in spring and cut for silage or grazed by sheep in autumn.…”

Section: Cropping Systemsmentioning

confidence: 99%

Earthworm communities in conventional wheat monocropping and low‐input wheat‐clover intercropping systems

Schmidt

Curry

Hackett

et al. 2001

Annals of Applied Biology

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A comparative study was conducted on earthworm communities in a conventional winter wheat monocropping system and a low-input intercropping system in which successive crops of winter wheat were direct-drilled into a permanent white clover sward. Earthworm abundance, biomass and species composition under the two cropping systems in the second and third years of successive cropping were assessed each spring and autumn in farm-scale field plots at four sites using formalin and electrical extraction methods. The wheatclover cropping system supported larger earthworm communities (overall mean abundance 548 individuals m -2 , 137 g biomass m -2 ) than conventional wheat monocropping (194 individuals m -2 , 36 g biomass m -2 ). Between one and five more earthworm species were recorded in the wheatclover system than in the wheat system at three out of the four study sites. Wheatclover cropping especially favoured species belonging to the epigeic and epigeic/anecic ecological groups such as Lumbricus castaneus, L. festivus, L. rubellus, juvenile Lumbricus and Satchellius mammalis. Earthworm communities in the wheatclover cropping system were comparable in size and species composition to communities normally found in perennial grassland-type habitats such as pastures and grass-legume leys.

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“…When annuals are established in living mulch of white clover, the clover has a competitive advantage from being established earlier. Spring cereals sown in white clover living mulch are, therefore, low-yielding when grown in competition with the clover (Williams & Hayes, 1991;Jones, 1992;Jones & Clements, 1993). Low temperatures generally benefit grasses in relation to white clover, and the proportion of clover in a white clover-grass sward is normally reduced during winter (Wachendorf et al, 2001).…”

Section: Introductionmentioning

confidence: 97%

Influence of White Clover Traits on Biomass and Yield in Winter Wheat- or Winter Oilseed Rape-Clover Intercrops

Bergkvist

2003

Biological Agriculture & Horticulture

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The potential to usc differences in traits of white clover (Trifolium repens L.) varieties to improve mature yield of winter wheat or winter oilseed rape (Brassica napus L.) sown in white clover living mulch was studied in two field experiments conducted in Southern Sweden. The clover varieties Sonja, S 184 and AberCrest, differing in leaf size and winter hardiness, were undersown in spring barley. Three consecutive crops of winter wheat or one crop of winter rape sown at two densities followed the barley. In the first year, the mature yields of wheat and high density rape equalled yields without white clover when AberCrest was used, while Sonja reduced the wheat yield by one third and the rape yield to nothing. S 184 was intermediate. White clover increased yields by 14-19% in the second wheat crop, but had no effect in the weed infested third wheat crop. The average amount of white clover at t1owering of wheat was always largest with Sonja, which increased its biomass earlier in spring than AberCrest. It was concluded that white clover traits are important when developing the intercropping system for large mature yields, especially when herbicides are avoided.

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Preliminary trials using a white clover (Trifolium repens L.) understorey to supply the nitrogen requirements of a cereal crop

Cited by 16 publications

References 7 publications

Biodiversity-based options for arable weed management. A review

Biodiversity-based options for arable weed management. A review

Earthworm communities in conventional wheat monocropping and low‐input wheat‐clover intercropping systems

Influence of White Clover Traits on Biomass and Yield in Winter Wheat- or Winter Oilseed Rape-Clover Intercrops

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