Effect of long-term tillage and residue managements on weed flora and its impact on winter wheat development

Lacroix, Christophe; Vandenberghe, Christophe; Monty, Arnaud; Dumont, Benjamin

doi:10.1016/j.agee.2024.108937

Agriculture, Ecosystems & Environment

2024

DOI: 10.1016/j.agee.2024.108937

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Effect of long-term tillage and residue managements on weed flora and its impact on winter wheat development

Christophe Lacroix,

Christophe Vandenberghe,

Arnaud Monty

et al.

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Cited by 2 publications

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Combining field measurements and process‐based modelling to analyse soil tillage and crop residues management impacts on crop production and carbon balance in temperate areas

Delandmeter,

Colinet,

Pierreux

et al. 2024

Soil Use and Management

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Crop residues management is an important issue in the context of climate change. They might be kept on the field and restituted to the soil to enhance its fertility or exported for other uses such as the production of energy through biomethanization. Furthermore, the choices regarding tillage operations impact the potential to incorporate residues, which in turn affects soil physical (e.g. structure, water retention), biological (e.g. organic matter, microorganisms) and chemical (e.g. nutrient release through mineralization) fertility. We combined measurements from a 14‐year field experiment in the Hesbaye loamy region of Belgium and its simulation with the STICS soil‐crop model to investigate the impacts of soil tillage and crop residues management on crop production, soil characteristics and carbon balance. Four treatments were compared, where all combinations of the incorporation versus exportation of crop residues and conventional versus reduced tillage were tested. The comparison of field observations with model simulations proved that the STICS model is adequate to explore the impacts of such contrasted management. The combined analysis of field data and soil‐crop model outputs showed that crop production was positively influenced by conventional tillage but unresponsive to crop residues fate. Reduced tillage led to a clear stratification in observed SOC content in the topsoil (0–30 cm), but also to an increase in simulated SOC stocks (0–26 cm). This SOC gain led to greater water retention under reduced tillage. Moreover, in both tillage treatments, incorporating residues increased soil organic carbon despite the associated augmentation in soil heterotrophic respiration. Finally, the importance of environmental conditions in carbon balance suggests that crop modelling might be very useful to explore the impacts of soil tillage and crop residues management in specific agro‐pedoclimatic contexts, especially when facing climate change.

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Combining field measurements and process‐based modelling to analyse soil tillage and crop residues management impacts on crop production and carbon balance in temperate areas

Delandmeter,

Colinet,

Pierreux

et al. 2024

Soil Use and Management

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Optimization of Tillage Operation Parameters to Enhance Straw Incorporation in Rice-Wheat Rotation Field

Miressa,

Ding,

et al. 2024

Agriculture

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In the rice-wheat system, using straw for soil incorporation provides better soil health and improves agricultural production. The experiment was performed in Babaiqiao town, Jiangsu Province, China’s Luhe District, Nanjing City, in June 2024 using a Shichao TG-500 tractor equipped with a Qingxuan 1GKN-180 rotary cultivator. The impacts of the three tillage practices, deep rotary tiller with straw (DRTS), shallow rotary tiller with straw (SRTS), and no-tillage with straw return (NTSR), on the level of soil disturbance were observed in the single-factor and two-factor interaction experiments. Based on the profilometry analysis, it was observed that DRTS had the highest value of soil disturbance while SRTS had a moderate disturbance value and NTSR minimized disturbance. The effects of working depths, forward speed, and rotation speed on the straw return rate have been evaluated by further investigations. The results showed that enhancing straw return rates was significantly impacted by changing the tilling depths and the rotation speeds, especially when using deeper tillage and moderate to high rotary speeds. The investigation found that the forward speed, blade rotation speed, and tillage depth explained the overall rates of straw return, soil breaking, and soil flatness. In the research, the response surface design employed was the Box–Behnken Design (BBD). The optimal operating parameters were 14.23 cm of plowing depth, 297.6 rpm for the rotary blades, and 3.23 km/h for forward speed. Achieved were the following parameters: 94.766% soil breakage rate, 84.97% straw return rates, and 16.36 mm soil flatness. The findings demonstrate the potential to implement strategies through operational parameters to significantly enhance agricultural practices.

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Effect of long-term tillage and residue managements on weed flora and its impact on winter wheat development

Cited by 2 publications

References 32 publications

Combining field measurements and process‐based modelling to analyse soil tillage and crop residues management impacts on crop production and carbon balance in temperate areas

Combining field measurements and process‐based modelling to analyse soil tillage and crop residues management impacts on crop production and carbon balance in temperate areas

Optimization of Tillage Operation Parameters to Enhance Straw Incorporation in Rice-Wheat Rotation Field

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