Break crop benefits in temperate wheat production

Kirkegaard, John A.; Christen, Olaf; Krupinsky, J. M.; Layzell, David B.

doi:10.1016/j.fcr.2008.02.010

Cited by 425 publications

(252 citation statements)

References 104 publications

Supporting

Mentioning

239

Contrasting

Unclassified

Order By: Relevance

“…The lower land use for the local scenario is due to the increase in wheat yields achieved from the diverse crop rotation (Kirkegaard et al, 2008). However, the difference in land use between the two scenarios is not as large as one would expect due to the substantial increase (ca.…”

Section: Ghg Emissionsmentioning

confidence: 91%

“…In addition, the high frequency of break crops (peas and rapeseed) in the rotation benefits the local scenario in terms of lower diesel use on the farm (Table 3). Break crops do not carry over diseases in the stubble and have lower residual stubble loads than grains, which facilitates the adoption of conservation farming strategies such as reduced mechanical weeding (Kirkegaard et al, 2008). Furthermore, less fertiliser use in the local scenario reduces CO 2 emissions from fertiliser production.…”

Section: Ghg Emissionsmentioning

confidence: 99%

“…peas, clover and rapeseed) can be integrated into existing feed production systems and can replace soya meal in livestock diets while maintaining livestock productivity (Emanuelson et al, 2006). Protein crops incorporated into specialised grain crop rotations can reduce nitrogen (N) fertilisation, decrease pest and weed populations, and increase grain yields (Kirkegaard et al, 2008;Nemecek et al, 2008). Therefore, local protein crop production has the potential to influence GHG emissions and land use of livestock production.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Localising livestock protein feed production and the impact on land use and greenhouse gas emissions

Sasu-Boakye

Cederberg

Wirsenius

2014

Animal

View full text Add to dashboard Cite

Livestock farmers in Sweden usually grow feed grains for livestock but import protein feed from outside Sweden. Aside from the economic implications, some environmental issues are associated with this practice. We used life cycle assessment to evaluate the impact of local protein feed production on land use and greenhouse gas emissions, compared with the use of imported protein feed, for pig meat and dairy milk produced in Sweden. Our results showed that local production reduced greenhouse gas emissions by 4.5% and 12%, respectively, for pigs and dairy cows. Land use for feed production in Sweden increased by 11% for pigs and 25% for dairy cows, but total land use decreased for pig production and increased for dairy milk production. Increased protein feed cultivation in Sweden decreased inputs needed for animal production and improved some ecological processes (e.g. nutrient recycling) of the farm systems. However, the differences in results between scenarios are relatively small and influenced to an extent by methodological choices such as co-product allocation. Moreover, it was difficult to assess the contribution of greenhouse emissions from land use change. The available accounting methods we applied did not adequately account for the potential land use changes and in some cases provided conflicting results. We conclude that local protein feed production presents an opportunity to reduce greenhouse gas emissions but at a cost of increasing land occupation in Sweden for feed production.

show abstract

Section: Ghg Emissionsmentioning

confidence: 91%

Section: Ghg Emissionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Localising livestock protein feed production and the impact on land use and greenhouse gas emissions

Sasu-Boakye

Cederberg

Wirsenius

2014

Animal

View full text Add to dashboard Cite

show abstract

“…If only rapeseed is compared with other important crops under European conditions this would be an alarming situation, however, rapeseed has a number of very positive aspects in the short cereal based rotations currently used. Kirkegaard et al (2008) have recently reviewed this aspect and emphasised the positive effect of rapeseed on the following cereals due to a lower incidence of root diseases and an improved soil structure. Higher yields achieved with a similar amount of nitrogen fertilization translate in a better nitrogen efficiency and a lower nitrogen balance and smaller nitrate leaching.…”

Section: Performance Of Rapeseed Under Sustainability Criteriamentioning

confidence: 99%

Sustainable rapeseed production between science and politics

Christen

2012

OCL

Self Cite

View full text Add to dashboard Cite

“…Greater crop system efficiency can be achieved by growing deeper rooting crops, such as wheat (Triticum aestivum L.) and canola, after crops that use less of the soil water profile (Cutforth et al 2013). In temperate wheat production, adding break crops can increase yields by up to 20% or more (Kirkegaard et al 2008). Much is known about the rotational benefits of disease control, improved nitrogen nutrition and water supply, but other ''rotation effects'', such as changes in rhizosphere biology, allelopathy or soil structure, are less well understood.…”

mentioning

confidence: 99%

The effects of three pulse crops on a second subsequent crop

et al. 2015

View full text Add to dashboard Cite

. 2015. The effects of three pulse crops on a second subsequent crop. Can. J. Plant Sci. 95: 779Á786. Pulse crops can provide benefits to cropping systems, but few studies follow the effects beyond one subsequent crop. This study investigated the effects of three pulses on 2 yr of subsequent crops at Barrhead and St. Albert in central Alberta. In year 1 (YR1), field pea (Pisum sativum L.), faba bean (Vicia faba L.), lupin (Lupinus angustifolius L.), barley (Hordeum vulgare L.), and canola (Brassica napus L.) were grown without added N. The design included plus N controls, eight different crops in YR2, and barley in YR3. YR1 effects on YR3 barley varied between sites and years, and drought conditions in 2009 affected results. Effects of YR1 faba bean were greater than pea or lupin. Increases in YR3 barley grain yields averaged 11% (0.33 Mg ha(1 ) and increases in seed N yields averaged 11% (7.2 kg N ha (1 ) after YR1 faba bean, compared with after YR1 canola or barley without added N (BCO). Increases in YR3 barley grain yields and seed N yields averaged 3 to 5% after YR1 pea or lupin, compared with BCO.YR1 crops had few effects on YR3 barley P uptake. Results indicated that pulse crops can improve the yield and quality of a second subsequent crop. Re´percussions de trois le´gumineuses sur la culture deux ans plus tard. Can. J. Plant Sci. 95: 779Á786. Les le´gumineuses profitent aux productions agricoles, mais peu d'e´tudes se sont inte´resse´es a`leurs re´percussions au-dela`de la culture subse´quente. Les auteurs ont e´tudie´les conse´quences de la culture de trois le´gumineuses sur les deux anne´es de culture subse´quentes a`Barrhead et a`St. Albert, dans le centre de l'Alberta. La premie`re anne´e, ils ont cultive´du pois (Pisum sativum L.), de la fe`verole (Vicia faba L.), du lupin (Lupinus angustifolius L.), de l'orge (Hordeum vulgare L.) et du canola (Brassica napus L.) sans application d'engrais N. L'expe´rience incluait des te´moins avec application d'engrais N, huit cultures diffe´rentes la deuxie`me anne´e et la culture d'orge la troisie`me. Les effets de la premie`re anne´e de culture sur l'orge cultive´e la troisie`me anne´e varient avec le site et l'anne´e; en outre, la se´cheresse survenue en 2009 a affecte´les re´sultats. La fe`verole cultive´e la premie`re anne´e a eu plus de re´percussions que le pois ou le lupin. Le rendement grainier de l'orge cultive´e la troisie`me anne´e a enregistre´une hausse moyenne de 11 % (0,33 Mg par hectare) tandis que la hausse moyenne du rendement N des semences s'e´levait a`11 % (7,2 kg de N par hectare) apre`s la culture de fe`verole plutoˆt que celle de canola ou d'orge sans apport d'engrais la premie`re anne´e. Apre`s la culture de pois ou de lupin la premie`re anne´e, le rendement grainier et le rendement en N des semences d'orge la troisie`me anne´e avaient augmente´de 3 a`5 % en moyenne, comparativement aux re´sultats obtenus apre`s la culture d'orge sans amendement azote´, la premie`re anne´e. Les plantes cultive´es la premie`re anne´e ont eu peu d'effets su...

show abstract

Break crop benefits in temperate wheat production

Cited by 425 publications

References 104 publications

Localising livestock protein feed production and the impact on land use and greenhouse gas emissions

Localising livestock protein feed production and the impact on land use and greenhouse gas emissions

Sustainable rapeseed production between science and politics

The effects of three pulse crops on a second subsequent crop

Contact Info

Product

Resources

About