Geospatial variation of physical attributes and sugarcane productivity in cohesive soils

Schossler, Thiago Rodrigo; Mantovanelli, Bruno Campos; Almeida, Brivaldo Gomes de; Freire, Fernando José; Silva, Manassés Mesquita da; Almeida, Ceres Duarte Guedes Cabral de; Freire, Maria Betânia Galvão dos Santos

doi:10.1007/s11119-019-09652-y

Cited by 9 publications

(5 citation statements)

References 39 publications

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“…The main source of gaps in sugarcane plantations is the impact of machines directly on the plants and also on the soil, causing soil compaction and, consequently, mechanical damage to the plants, which, according to [38], can be one of the factors responsible for the reduction in sugarcane production. The authors of ref.…”

Section: Implications Of Increasing Row Gap Number and Length Classesmentioning

confidence: 99%

Sugarcane Row Gaps Assessment over Successive Burned and Unburned Annual Harvests

Cavalcanti,

Rolim,

de Lima

et al. 2023

Agronomy

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Mechanized harvesting operations promote a series of benefits to sugarcane production but are also a cultivation step responsible for developing a series of problems for the soil and the plants due to plant mechanical damage, resulting in a decline in production over successive cycles due to row gaps emergence. The objective of this study was to evaluate the impact of burned and unburned harvesting systems on the occurrence of sugarcane row gaps over annual harvests. For this study, a burned and an unburned area were selected. The row gap number and length (sum of gaps, m) were measured after the sugarcane planting and plant-cane cultivation stages and after the first, second, and third sugarcane ratoon harvests. The results revealed that there was no difference in the number and length of row gaps between the burned and unburned harvesting systems. However, the row gap number and length considerably increased after the second harvest in both treatments (burned and unburned). The row gap number and length were close to 5 and 1–5 m at the planting and plant-cane cultivation stages and increased to around 60 and 70 m as the harvest progressed, respectively, in burned and unburned harvesting. Our results suggest that row gaps in sugarcane fields are independent of the burned or unburned sugarcane harvesting system but increase as the number of harvests increases.

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Section: Implications Of Increasing Row Gap Number and Length Classesmentioning

confidence: 99%

Sugarcane Row Gaps Assessment over Successive Burned and Unburned Annual Harvests

Cavalcanti,

Rolim,

de Lima

et al. 2023

Agronomy

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“…Enhancing the productivity of arable soils is a pressing goal in current human society due to the increasing demand for food (Schossler et al, 2019). Intensive agriculture facilitates crop productivity but also leads to soil salinization (Xie et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Elevated salinity decreases soil ecosystem multifunctionality by shifting the bacterial community from K‐ to r‐selected living strategy

Cheng

Wan

2022

Land Degrad Dev

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Deciphering ecosystem multifunctionality (EMF) driven by abiotic and biotic factors is crucial for evaluating soil nutrient cycling and retention. Yet, there is little information on whether microbial r/K-selection can play the same role as community diversity to reflect EMF. Using Illumina MiSeq sequencing, phospholipid fatty acid (PLFA) technique, and multiple statistical analyses, we estimated linkages among salinity, soil EMF, community diversities, microbial r/K-selection, and bacterial ecological assembly processes and phylogenetic signals in salinized agricultural soils (0.09-19.91 dS m À1 ). Salinity significantly negatively correlated with soil EMF, bacterial taxonomic and phylogenetic α-diversities, and bacterial K-selection represented by the Acidobacteria/Proteobacteria (Aci:Pro) ratio (0-0.50). There was a significantly positive correlation between bacterial K-selection and soil EMF (Pearson's r = 0.545, p < 0.001).Deterministic processes (60.0-85.5%) dominated bacterial community assemblies along salinity gradients (i.e., 0-1, 1-2, 2-4, 4-8, 8-16, and >16 dS m À1 ), and salinity displayed a critical role in balancing stochastic and deterministic processes. To our knowledge, this study is the first to report elevated salinity decreased soil EMF and a bacterial shift from K-to r-selection. Environmental constraint and phylogenetic conservatism showed strongly negative influences on bacterial K-selection. These findings enrich the knowledge of bacterial diversity maintenance in salinized agricultural soils and reveal close linkage between bacterial K-selection and soil EMF. Therefore, the bacterial K-selection index of Aci:Pro could serve as a bioindicator for soil EMF.

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“…Other authors as Schossler et al (2019) propose the implementation of combined tools, generating the construction of variograms in the GS+ software and the generation of contour maps with the Surfer v. 8.0, that is, without the possibility of integration in a single environment and requiring a greater processing time per variable. The third group of researchers suggests developing geostatistical analyzes with the robust Cressie variance estimator, which allows an omnidirectional analysis of 2D variograms (Alesso et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Spatial analysis methodology of resistance to penetration and infiltration in a soil cultivated with a bushy fruit (Acca sellowiana)

Orjuela-Matta

Camacho

Corredor

et al. 2022

Rev. U.D.C.A Act. & Div. Cient.

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The sustainable management of water and soil resources for agricultural purposes is related to the ability to store and mobilize available water for crops, particularly under a spatial analysis. The objective of the study was to design and evaluate a methodology for spatial analysis of resistance to soil penetration and infiltration on loamy-clay textures. The basic methodological principles included sampling grid planning, data capture at defined points, data fitting to empirical models, data processing, and spatial representation. A defining moment was evaluated for an established feijoa crop with permanent production. With a georeferenced rectangular sampling grid of 40m x 40m, an area of 1.36 ha was covered. Penetration resistance was measured with a penetrometer, covering 4 depths per node (sampled point). Infiltration was evaluated with ring infiltrometers. The results allowed validation of the methodology implemented through a single processing environment through RStudio. Resistance to penetration sensitively affected the variation in infiltration rates, adjusting planning activities for irrigation activities. The methodological proposal was designed to reduce processing times and graphic responses, tabulated, and integrated with a single script in the R tool, compared to traditional geostatistical techniques, which articulate the implementation of multiple tools for the generation of results.

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Geospatial variation of physical attributes and sugarcane productivity in cohesive soils

Cited by 9 publications

References 39 publications

Sugarcane Row Gaps Assessment over Successive Burned and Unburned Annual Harvests

Sugarcane Row Gaps Assessment over Successive Burned and Unburned Annual Harvests

Elevated salinity decreases soil ecosystem multifunctionality by shifting the bacterial community from K‐ to r‐selected living strategy

Spatial analysis methodology of resistance to penetration and infiltration in a soil cultivated with a bushy fruit (Acca sellowiana)

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