Changes in soil profile hydraulic properties and porosity as affected by deep tillage soil preparation and Brachiaria grass intercropping in a recent coffee plantation on a naturally dense Inceptisol

Silva, Rodrigo Fonseca da; Severiano, Eduardo da Costa; Oliveira, Geraldo César de; Martins, Rodrigo; Peixoto, Devison Souza; Tassinari, Diego; Silva, Bruno Montoani; Silva, Sérgio Henrique Godinho; Júnior, Moacir de Souza; Figueiredo, Tomás de

doi:10.1016/j.still.2021.105127

Cited by 11 publications

(3 citation statements)

References 61 publications

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“…The lower PR observed in the MBSB-HI treatment can be explained by the abundance of grass roots in the upper soil layers and the time that had passed since the experiment was first set up (since the 2014/2015 crop year). This created so-called biopores through periodic renewal of the aggressive root system of brachiaria grass [39,40]. These biopores contribute to soil structure alleviation and improve soil porosity [41,42], which is crucial for water percolation in the soil profile and reduction of direct runoff.…”

Section: Discussionmentioning

confidence: 99%

Microbiological Properties in Cropping Systems and Their Relationship with Water Erosion in the Brazilian Cerrado

Merlo

Avanzi

Silva

et al. 2022

Water

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Many researchers have reported relationships of physical and chemical properties with water erosion; however, little is known about microbiological properties in this context. Thus, the aim of this study was to evaluate soil properties in relation to erosion in areas with different cropping system practices under no-tillage in the Brazilian Cerrado. The experiment has been carried out since 2014 in a Typic Haplustox under soybean (S) and maize (M) monoculture, maize/soybean annual rotation (MS), maize/brachiaria/soybean/brachiaria rotation (MBSB), two of those treatments with high input of fertilizer (MBSB-HI and MS-HI), and bare soil (BS). Soil losses were quantified in erosion plots. The design was completely randomized. The greater vegetation cover crop, provided by intercropping/succession with brachiaria, increased microbial biomass carbon. The lack of vegetation cover affected the basal soil respiration and metabolic quotient. Basal soil respiration proved to be inversely related to soil and water losses. Vegetation cover was a key factor regulating water erosion. Penetration resistance and aggregate stability correlated with soil and water losses. Thus, not only physical and chemical, but also biological properties are deeply affected by erosion, aiding in early monitoring of water erosion. Soil quality improvement in ecologically supported management contributes to mitigating erosion.

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Section: Discussionmentioning

confidence: 99%

Microbiological Properties in Cropping Systems and Their Relationship with Water Erosion in the Brazilian Cerrado

Merlo

Avanzi

Silva

et al. 2022

Water

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“…Brachiaria has recently become a popular choice for intercropping and crop rotation systems due to the growing demand for sustainable agriculture and the implementation of conservationist practice (Kluthcouski et al, 2000). Using Brachiaria in these systems bene ts soil characteristics such as soil organic matter, porosity, protection against erosion, and suppression of weeds (Almeida and Rosolem 2016; Eri et al 2020;Bieluczyk et al 2020;Silva et al 2021). Together, those characteristics can improve crop yield production in consortium or rotation with Brachiaria (Brandan et al 2017;Crusciol et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Investigating the effects of Brachiaria (Syn. Urochloa) varieties on soil properties and microbiome

Merloti

Bossolani²,

Mendes³

et al. 2023

Preprint

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Background and Aims The Brachiaria sp. (synonymous with Urochloa) is one of Brazil’s main grass species used in livestock production and has become the focus of breeding genetic programs to enhance its resistance to drought, flooding, and pests, as well as improving its palatability to animals. However, there is a limited understanding of how genetic breeding can affect the soil microbiome and its potential functions. Thus, this study aimed to investigate the impact of four different Brachiaria varieties on the soil prokaryotic and fungal communities, particularly emphasizing their potential functions related to the N-cycle. Methods We combined molecular techniques, such as quantitative PCR and amplicon sequencing, to target prokaryotic and fungi communities and traditional soil and plant chemical analyses. Results Our findings revealed that all varieties improved soil porosity, P content, and organic carbon. Soil acidity, nutrient availability, and porosity were the main drivers of the microbial communities. The Nitrososphaeraceae, Gaiellales, Conexibacter, Sphingomonas, Hydnophlebia meloi, Conocybe, and Cladosporium were the main taxa associated with the dissimilarities between the Brachiaria varieties and the Control. In addition, the presence of the plants increased potential microbial functions such as Chemoheterotroph, Aerobic-Chemoheterotroph, and Pathotroph-Saprotroph groups. The study also identified the ability of each variety to recruit nitrogen-fixing and bacterial and archaeal ammonia-oxidizing communities. Conclusion Our findings suggest that selecting an efficient Brachiaria variety could positively impact soil quality, improving agricultural systems and increasing food production.

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“…Deep tillage can improve soil structure, increase soil water and moisture storage capacity, reduce soil weight at the bottom of the plow and increase the utilization of nutrients in the soil, which can effectively protect the quality of arable land and promote sustainable agricultural development, providing optimal conditions for seed germination and then promote the growth of crop roots and increase crop yield [12][13][14]. In recent years, scholars at home and abroad have carried out a lot of research on deep tillage operations, and deep vertical rotary tillage has increased the accumulation of stem and root dry matter in crops and improved the seed tube speaking rate and yield [15]; field management operations can deepen crop root growth and alter soil porosity, affecting water infiltration, storage and crop water uptake [16]. Deep tillage management strategies can mix soils at different depths and maintain the long-term productivity of no-till systems, providing effective solutions to address soil water resistance, herbicide weed resistance, subsoil acidity, and compaction [17]; the subsoil stores a large number of nutrients required by the crop, and deep tillage can be a tool to increase the absorption of subsoil resources for the crop and improve its resilience and ability to adapt to different climate changes [18].…”

Section: Introductionmentioning

confidence: 99%

Development and Numerical Simulation of a Precision Strip-Hole Layered Fertilization Subsoiler While Sowing Maize

et al. 2022

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The traditional fertilizer application methods have serious problems of environmental pollution and soil degradation due to low utilization rates in the Huang–Huai–Hai Plain of China. In this study, the conservation tillage strip-hole layered fertilization method was proposed and a precision strip-hole layered fertilizer subsoiler was designed. To meet the requirements for deep tillage strip-hole layered fertilizer application, theoretical analysis and parameter calculations were first carried out on the fertilizer application type hole wheel, and then the main factors affecting the fertilizer application effect of a strip-hole layered fertilizer shovel were analyzed. The effect of forwarding speed, angle of fertilizer tube installation (AFT) and angle of unloading fertilizer (AUF) on the middle and lower layers of the fertilizer distribution length (FDT) and fertilization amount deviation stability coefficient (FADSC) was studied using the discrete element method (DEM). The three-factor three-level full-factors test design method was adopted. Simulation results showed that the FDT and the FADSC increased as the forward speed increased; the FDT decreased as the AFT and the AUF increased; an increased FADSC was observed at a middle angle of the AFT and the AUF. The minimum FADSC was obtained for a combination of parameters with a forward speed of 2 km/h, the AFT of 35° and the AUF of 60°, corresponding to the FADSC of 2.49% in the middle layer and 2.93% in the lower layer while satisfying the FDT condition. The results of the field trials showed that the FADSC was 11.36% and 12.42%, respectively, an increase of 8.87% and 9.49%, respectively, compared to the simulation results, validating the simulation model. The new way of fertilizer application methods and a theoretical basis were provided for the design of hole application machinery.

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Changes in soil profile hydraulic properties and porosity as affected by deep tillage soil preparation and Brachiaria grass intercropping in a recent coffee plantation on a naturally dense Inceptisol

Cited by 11 publications

References 61 publications

Microbiological Properties in Cropping Systems and Their Relationship with Water Erosion in the Brazilian Cerrado

Microbiological Properties in Cropping Systems and Their Relationship with Water Erosion in the Brazilian Cerrado

Investigating the effects of Brachiaria (Syn. Urochloa) varieties on soil properties and microbiome

Development and Numerical Simulation of a Precision Strip-Hole Layered Fertilization Subsoiler While Sowing Maize

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