Chemical attributes of Oxisol under different tillage systems in Northeast of Par

Pedroso, Augusto José Silva; Ruivo, Maria de Lourdes Pinheiro; Piccinin, Jorge Luiz; Okumura, Ricardo Shigueru; Birani, Sannah Mohamad; Júnior, Mário Lopes da Silva; Melo, Vânia Silva de; Costa, Adriane da Rocha; Albuquerque, Marcos Paulo Ferreira de

doi:10.5897/ajar2016.11688

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…The no-tillage system plays an important role in the conservation and maintenance of soil biota (Crusciol et al, 2010;Pedroso et al, 2016), due to the reduced soil disturbance, residue accumulation (Cunha et al, 2011), and crop rotation (Paul et al, 2013), which stabilize habitats and food supply (Bottega et al, 2013). In terms of soil benefits, the no-tillage system minimizes evaporation and erosion and can increase soil water infiltration and microbial activity rates, favoring nutrient incorporation in the soil and improving the physical, chemical, and biological quality.…”

Section: Introductionmentioning

confidence: 99%

Spatial Variability of Soil Fauna Under Different Land Use and Managements

Silva

Siqueira

Costa

et al. 2018

Rev. Bras. Ciênc. Solo

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Geostatistics allows the evaluation of the distribution pattern of data with high spatial variability in agricultural systems. This study aimed to evaluate the spatial variability of biological diversity indices of soil fauna under different land (agriculture and forest). Samples were collected in seven areas (millet, soybean, corn, eucalyptus, pasture crops, and preserved and disturbed Cerrado), in Maranhão state, Brazil. The soil fauna was caught trapped in pitfall traps, installed 3 m away from each other. In each area, 130 traps were maintained for seven days. After this period, they were removed and their content transferred to bottles and taken to the laboratory, where the insects were screened and identified at the level of orders and families. Eight indices were calculated, namely: individuals trap-1 day-1 , Jackknife richness estimator, the Simpson, McIntosh, Shannon, and total diversity, and Simpson dominance, and Pielou equitability indices. The spatial variability was derived from the semivariograms fitted to Gaussian, spherical, and exponential geostatistical models. Statistical analysis showed medium values of the coefficient of variation for millet, except for the indices individuals trap-1 day-1 and McIntosh diversity, which were considered high. The values of the correlation matrix were negative for some indices, suggesting an inverse relationship. For millet, corn, eucalyptus, disturbed Cerrado, and pasture areas, the Shannon diversity index exhibited a pure nugget effect. For the areas of millet, corn, disturbed Cerrado and pasture, the total diversity index was adjusted to the Gaussian model. The degree of spatial dependence was considered high for the individuals trap-1 day-1 and Pielou equitability indices for millet. Only for soybean and pasture similarity in the scaled semivariograms was observed for the spatial variability of the indices, indicating similarity of performance. Soil management and land use affect the patterns of soil fauna abundance, richness, and diversity. The presence of groups such as Araneae, Diplura, and Poduromorpha are related to ecological equilibrium, quality, and sustainability of the agricultural systems studied.

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Section: Introductionmentioning

confidence: 99%

Spatial Variability of Soil Fauna Under Different Land Use and Managements

Silva

Siqueira

Costa

et al. 2018

Rev. Bras. Ciênc. Solo

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Growth and Yield of Schizolobium parahyba var. amazonicum According to Soil Management in Agroforestry Systems: A Case Study in the Brazilian Amazon

et al. 2021

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Studies on applying of soil management practices in the management of paricá and the effects on growth and yield are essential to auxiliary its cultivation and would allow us to inform management and conservation decisions to reconciliate biodiversity, wellbeing, and sustainable production. This case study aimed to evaluate the growth and yield of paricá at different soil management practices, including consortium with an agricultural production, in the Brazilian Amazon. Paricá was implanted, consorted with soybean in the first year, and maize in the second, in a 5 × 2 m spacing. The treatments T1 = subsoiling, basal dressing, top-dressing, inoculation of microorganisms and consortium with soybean/maize were applied. In T2, T3, T4, and T5, we applied the same practices of T1, except subsoiling (T2), basal dressing (T3), top-dressing (T4) and inoculation of microorganisms (T5). T6 was the control, which used none of these practices, including the consortium with soybean/maize. The results indicate that the highest rate of plant survival occurred in T2, while T3 and T4 promoted greater intraspecific competition, compromising the growth in dbh and the yield (m3 ha−1) of plants in future ages. Growth in dbh and th and the yield of plants in the soybean/maize consortium period was higher in T2 and T6. In future ages, the dbh and yield of plants demonstrated higher growth trends in T6, T1, and T5. Agroforestry practices of soil management influence the growth and yield of paricá plants. However, there is a tendency for greater growth and yield for paricá plants cultivated in the absence of agroforestry practices for soil management proposed in this case study. When opting for AFS (paricá intercropped with soybean and maize), it is recommended for paricá a subsoiling, fertilization, and inoculation of microorganisms.

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Chemical attributes of Oxisol under different tillage systems in Northeast of Par

Cited by 2 publications

References 14 publications

Spatial Variability of Soil Fauna Under Different Land Use and Managements

Spatial Variability of Soil Fauna Under Different Land Use and Managements

Growth and Yield of Schizolobium parahyba var. amazonicum According to Soil Management in Agroforestry Systems: A Case Study in the Brazilian Amazon

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