Which cropping systems to reconcile weed-related biodiversity and crop production in arable crops? An approach with simulation-based indicators

Mézière, Delphine; Colbach, Nathalie; Dessaint, Fabrice; Granger, Sylvie

doi:10.1016/j.eja.2015.04.004

Cited by 25 publications

(12 citation statements)

References 69 publications

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“…trophic offerings for herbivores and pollinators) and (2) the harmful effects on crop production (e.g. alternate hosts for pathogens and insect pests, crop-weed competition losses and harvesting difficulties) (Mézière et al ., 2015). The current results showed that continuous stocking in the winter-grazed grass cover crop under no-tillage management promoted greater weed diversity than did rotational stocking at the plot scale, which is adequate for evaluating how biotic factors can affect species community structure (Perronne et al ., 2017).…”

Section: Discussionmentioning

confidence: 99%

Effects of crop rotation and sheep grazing management on the seedbank and emerged weed flora under a no-tillage integrated crop-livestock system

Schuster¹,

Harrison²,

Moraes³

et al. 2018

J. Agric. Sci.

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Effective integrated weed management in agricultural landscapes depends on the ability to identify and manage processes that drive weed dynamics. The current study reports the effects of grazing management and crop rotation strategies on the seedbank and emerged weed flora in an integrated crop-livestock system (ICLS) experiment during a 12-year period under no-tillage in sub-tropical southern Brazil. During winter, Italian ryegrass cover crops were grazed by sheep: grazing management treatments included two stocking methods (continuous and rotational) and two forage allowances (10 and 20 kg of herbage dry matter available per 100 kg animal live weight). During summer, the crop rotation treatments involved either soybean-maize or soybean-soybean in succession with winter-grazed cover crops. The treatments were part of a factorial randomized complete block design. Treatment effects were evaluated on the weed seedbank and emerged weed flora populations during winter-grazed cover crop and summer crop growth as well as during the harvest phase. The current results demonstrate that crop rotation and grazing management exhibited interactive effects on the determination of weed outcomes in an ICLS. However, overall, compared with moderate forage allowance, high forage allowance during the winter-grazed cover crop caused lower emerged weed flora in subsequent crops (20% reduction during crop growth and 90% reduction at crop harvest) and 48% reduction in seedbank size. High forage allowance promoted more residue from winter-grazed cover crop biomass, which remained during the summer crop phases and probably resulted in a physical barrier to weed emergence.

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Section: Discussionmentioning

confidence: 99%

Effects of crop rotation and sheep grazing management on the seedbank and emerged weed flora under a no-tillage integrated crop-livestock system

Schuster¹,

Harrison²,

Moraes³

et al. 2018

J. Agric. Sci.

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“…Reduced tillage may have effects on the natural enemy populations, as highlighted by findings in no-till annual systems. No-till agriculture increases the densities of beneficial organisms, including seed-eating ground beetles (16,73,93) and harvester ants (9), entomopathogenic fungi (99), predatory ground beetles (124) and ants (102), and overwintering parasitoids (110). Ward et al (147) showed that the number of days since the last disturbance event (mowing of summer cover crop or cultivation) positively correlated with the active density of weed-seed-eating carabids in a soybean system with a variety of summer cover crops.…”

Section: Pests and Beneficial Organismsmentioning

confidence: 99%

“…Changes in soil disturbance could also benefit pollinator populations. Ground-nesting bees can overwinter in fields (107), and reduced tillage may enhance these pollinator populations (93).…”

Section: Pests and Beneficial Organismsmentioning

confidence: 99%

Perennial Grain and Oilseed Crops

Kantar

Tyl

Dorn³

et al. 2016

Annu. Rev. Plant Biol.

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Historically, agroecosystems have been designed to produce food. Modern societies now demand more from food systems-not only food, fuel, and fiber, but also a variety of ecosystem services. And although today's farming practices are producing unprecedented yields, they are also contributing to ecosystem problems such as soil erosion, greenhouse gas emissions, and water pollution. This review highlights the potential benefits of perennial grains and oilseeds and discusses recent progress in their development. Because of perennials' extended growing season and deep root systems, they may require less fertilizer, help prevent runoff, and be more drought tolerant than annuals. Their production is expected to reduce tillage, which could positively affect biodiversity. End-use possibilities involve food, feed, fuel, and nonfood bioproducts. Fostering multidisciplinary collaborations will be essential for the successful integration of perennials into commercial cropping and food-processing systems.

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“…The independent variable that causes the greatest reduction in variance of the dependent variable wins, and it is later presented in the final CART tree [9,24,25]. There are many agronomic studies where the CART method was successfully used [8,[26][27][28][29][30].…”

Section: Statistical Analysis and Data Visualizationmentioning

confidence: 99%

The Analysis of Wheat Yield Variability Based on Experimental Data from 2008–2018 to Understand the Yield Gap

et al. 2021

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Among European countries, Poland has the largest gap in the grain yield of winter wheat, and thus the greatest potential to reduce this yield gap. This paper aims to recognize the main reasons for winter wheat yield variability and shed the light on possible reasons for this gap. We used long-term datasets (2008–2018) from individual commercial farms obtained by the Laboratory of Economics of Seed and Plant Breeding of Plant Breeding and Acclimatization Institute (IHAR)-National Research Institute (Poland) and the experimental fields with high, close to potential yield, in the Polish Post-Registration Variety Testing System in multi-environmental trials. We took into account environment, management and genetic variables. Environment was considered through soil class representing soil fertility. For the crop management, the rates of mineral fertilization, the use of pesticides and the type of pre-crop were considered. Genotype was represented by the independent variable year of cultivar registration or year of starting its cultivation in Poland. The analysis was performed using the CART (Classification and Regression Trees). The winter wheat yield variability was mostly dependent on the amount of nitrogen fertilization applied, soil quality, and type of pre-crop. Genetic variable was also important, which means that plant breeding has successfully increased genetic yield potential especially during the last several years. In general, changes to management practices are needed to lower the variability of winter wheat yield and possibly to close the yield gap in Poland.

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Which cropping systems to reconcile weed-related biodiversity and crop production in arable crops? An approach with simulation-based indicators

Cited by 25 publications

References 69 publications

Effects of crop rotation and sheep grazing management on the seedbank and emerged weed flora under a no-tillage integrated crop-livestock system

Effects of crop rotation and sheep grazing management on the seedbank and emerged weed flora under a no-tillage integrated crop-livestock system

Perennial Grain and Oilseed Crops

The Analysis of Wheat Yield Variability Based on Experimental Data from 2008–2018 to Understand the Yield Gap

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