Soil physico-hydrical properties changes induced by weed control methods in coffee plantation

Pires, Luiz F.; Araújo-Junior, Cezar Francisco; Auler, André Carlos; Dias, Nívea Maria Piccolomini; Dias, Moacir de Souza; Alcântara, Elifas Nunes de

doi:10.1016/j.agee.2017.06.008

Cited by 14 publications

(4 citation statements)

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“…(2021) and Pires et al. (2017) for determining the soil water retention curve. Five treatments were investigated: 0‐W‐D, in which samples were not submitted to any W‐D cycles; 2‐W‐D (two W‐D cycles); 4‐W‐D (four W‐D cycles); 8‐W‐D (eight W‐D cycles); and 12‐W‐D (12 W‐D cycles).…”

Section: Methodsmentioning

confidence: 99%

Poly‐γ‐glutamic acid application rate effects on hydraulic properties of sandy soil under wetting‐drying cycles conditions

Liu

Shi

Wang

2022

Soil Science Soc of Amer J

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When amending soil to increase sandy soil water holding capacity, amendment application rate and environment need consideration. Recently, poly-γ-glutamic acid (γ-PGA) as a soil amendment has been increasingly applied in agricultural development. The purpose of this study was to determine the effect of γ-PGA on soil water retention and soil hydraulic conductivity under wetting-drying (W-D) conditions.Specifically, this study investigated the influence of different γ-PGA application rates (wt%: 0, 0.4, 0.8, 1.2, and 1.6%) on the soil water characteristic curve, saturated hydraulic conductivity (K s ), and the other hydraulic characteristic parameters (saturated water content [θ s ], field capacity [FC], permanent wilting point [PWP], and available water content [AWC]). Results showed that γ-PGA significantly increased sandy soil water retention by increasing θ s , FC, PWP, and AWC. Poly-γ-glutamic acid could decrease the proportion of large pore size (2-15 μm) and K s and enhance the proportion of particles with small pore size (0.2-2 μm). Nevertheless, the effect of γ-PGA on hydraulic properties of sandy soil depended on γ-PGA application rate and the number of W-D cycles. Under 8-W-D and 12-W-D, there was no significant difference on soil water retention among all treatments. Increasing the application rate of γ-PGA was not more effective; P3 (1.2%) and P4 (1.6%) treatments had little difference in soil water holding capacity. This study quantitatively investigated effects of γ-PGA on soil water retention under different W-D cycles. Our results suggest that 1.2% might be recommended as an appropriate γ-PGA application amount.

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Section: Methodsmentioning

confidence: 99%

Poly‐γ‐glutamic acid application rate effects on hydraulic properties of sandy soil under wetting‐drying cycles conditions

Liu

Shi

Wang

2022

Soil Science Soc of Amer J

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“…In a field experiment, Pires et al. (2017) showed that elimination of weeds from the inter‐rows of a coffee crop, by either mechanical methods or herbicide application, reduced the volume of pores with diameters larger than 25 μm. Other field experiments have shown that plant species with large tap roots have the potential to restore some of the physical functions of degraded subsoil by creating large biopores (Cresswell & Kirkegaard, 1995; Meek, DeTar, Rolph, Recher, & Carter, 1990; Uteau, Pagenkemper, Peth, & Horn, 2013; Yunusa & Newton, 2003).…”

Section: Biological Agents Of Soil Structure Dynamicsmentioning

confidence: 99%

“…By inferring soil hydraulic properties from drainage experiments on laboratory soil columns, Scholl et al (2014) demonstrated how the growth of plant roots altered soil pore size distributions, with increases in the volumes of pores <2.5 μm and >500 μm in diameter. In a field experiment, Pires et al (2017) showed that elimination of weeds from the inter-rows of a coffee crop, by either mechanical methods or herbicide application, reduced the volume of pores with diameters larger than 25 μm. Other field experiments have shown that plant species with large tap roots have the potential to restore some of the physical functions of degraded subsoil by creating large biopores (Cresswell & Kirkegaard, 1995;Meek, DeTar, Rolph, Recher, & Carter, 1990;Uteau, Pagenkemper, Peth, & Horn, 2013;Yunusa & Newton, 2003).…”

Section: Root Growthmentioning

confidence: 99%

A framework for modelling soil structure dynamics induced by biological activity

Meurer

Barron

Chenu

et al. 2020

Global Change Biology

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Soil degradation is a worsening global phenomenon driven by socio‐economic pressures, poor land management practices and climate change. A deterioration of soil structure at timescales ranging from seconds to centuries is implicated in most forms of soil degradation including the depletion of nutrients and organic matter, erosion and compaction. New soil–crop models that could account for soil structure dynamics at decadal to centennial timescales would provide insights into the relative importance of the various underlying physical (e.g. tillage, traffic compaction, swell/shrink and freeze/thaw) and biological (e.g. plant root growth, soil microbial and faunal activity) mechanisms, their impacts on soil hydrological processes and plant growth, as well as the relevant timescales of soil degradation and recovery. However, the development of such a model remains a challenge due to the enormous complexity of the interactions in the soil–plant system. In this paper, we focus on the impacts of biological processes on soil structure dynamics, especially the growth of plant roots and the activity of soil fauna and microorganisms. We first define what we mean by soil structure and then review current understanding of how these biological agents impact soil structure. We then develop a new framework for modelling soil structure dynamics, which is designed to be compatible with soil–crop models that operate at the soil profile scale and for long temporal scales (i.e. decades, centuries). We illustrate the modelling concept with a case study on the role of root growth and earthworm bioturbation in restoring the structure of a severely compacted soil.

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“…The limited contrast in soil quality between farm types may be explained by the fact that most of the indicators that we used were associated with soil chemical quality. Agroecological practices, such as tree intercropping, abandon or reduce the use of agrochemicals, mowing instead of intensive weeding, and use of manure (Figure 4.2A) are aimed not only to provide nutrients for the soil, but also enhance nutrient cycling (Duarte et al, 2013), improve water infiltration (Meylan et al, 2017;Pires et al, 2017), increase soil cover and organic matter, and enable favourable conditions for the development and activity of soil microbiota (Rigal et al, 2019;Tully and Ryals, 2017). For instance, the practice of mowing allow weed roots to remain in the soil and the mown aboveground plant material to serve as mulch to cover the soil.…”

Section: Soil Quality Indicatorsmentioning

confidence: 99%

Linking biodiversity, ecosystem services and social actors to promote agroecological transitions

Teixeira

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12of disturbances on global biogeochemical flows, leading to the transgression of planetary boundaries, which are characterized as a "safe operating space for global societal development" (Steffen et al., 2015). Furthermore, the conversion of native forests into single-crop plantations is leading to soil degradation, climate change, erosion due to reduced soil cover, loss of habitats for wildlife, and increased CO2 emissions (Fearnside and Laurance, 2004;Liu et al., 2018;Ometto et al., 2011;Symes et al., 2018). Indeed, plant and animal species are extinguished at high rates, characterizing an ongoing global mass extinction with unknown and possibly irreversible consequences for planet earth and human well-being (Barnosky et al., 2011;Ceballos et al., 2017). In addition to its environmental impacts, homogeneous input-based systems are mostly developed through multinational corporatization and financialization, which often results in social degradation due to increased concentration of socio-economic power as well as preclusion of traditional and indigenous local knowledge and culture (Figueroa-helland et al., 2018). The many problems associated with the dominant mode of agriculture calls for a re-design of more sustainable agri-food systems, capable to provide human well-being and promote biodiversity conservation.Despite the strong influence and dominance of the agro-industrial model, farmers operate in various social, political, cultural, economic and technological contexts. Differences in farm management among farmers can have an effect on the ecological structure and functioning of the landscape, and therefore, on the provision of multiple ecosystem services (Modernel et al., 2018;Schmitzberger et al., 2005;Tittonell et al., 2010). Farmers can manage their land to increase biodiversity as an efficient strategy to enhance the provision of ES, such as nutrient cycling, biological pest control, pollination, production diversification, amongst others (Iverson et al., 2014;Jackson et al., 2010;Smukler et al., 2010). In addition, the conversion from how to successfully implement agroecological transitions as well as its social and ecological impacts. Therefore, it becomes important to use interdisciplinary, systemic and multi-level approaches to understand the ecological and social drivers that enable a transition towards agroecology as well as to identify or design effective agroecological management strategies that are able to provide biodiversity conservation and multiple ES (Dendoncker et al., 2018). The case of Zona da MataThe study was conducted in the Zona da Mata region, located in the south-eastern part of Minas Gerais state, Brazil (Figure 1.2.). The region belongs to the Atlantic forest biome, one of the Figure 1.3.A. Landscape in Zona da Mata showing different land uses; B. Coffee harvest in Zona da Mata; C. Discussion with a farmer in his coffee agroforestry system. The FOREFRONT ProgramThis PhD thesis is part of the interdisciplinary and cross-country research program entitled FOREFRONT ("Nature's bene...

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Soil physico-hydrical properties changes induced by weed control methods in coffee plantation

Cited by 14 publications

References 50 publications

Poly‐γ‐glutamic acid application rate effects on hydraulic properties of sandy soil under wetting‐drying cycles conditions

Poly‐γ‐glutamic acid application rate effects on hydraulic properties of sandy soil under wetting‐drying cycles conditions

A framework for modelling soil structure dynamics induced by biological activity

Linking biodiversity, ecosystem services and social actors to promote agroecological transitions

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