Chemical attributes of agricultural soil after the cultivation of cover crops

Sousa, Daiane Conceição de; Medeiros, J. C.; Rosa, Jardim; Lacerda, Julian Junio de Jesús; Mafra, Álvaro Luiz; Mendes, Wanderson de Sousa

doi:10.21475/ajcs.17.11.11.pne799

Cited by 10 publications

(13 citation statements)

References 25 publications

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“…Soil cover species, such as pearl millet (Pennisetum glaucum L.), slender leaf rattlebox (Crotalaria ochroleuca), and showy rattlebox (Crotalaria spectabilis) have been studied regarding different aspects, such as the soil cover rate, decomposition rate, nutrient content, and phytomass production (PASSOS et al, 2017;FERREIRA et al, 2019;PFÜLLER et al, 2019). Also, the effects on soil chemical and physical properties (PASSOS et al, 2017;SOUSA et al, 2017;ASCARI et al, 2020), soybean nematodes (DEBIASI et al, 2016), hence soybean and corn productivity (DEBIASI et al, 2016;ASCARI et al, 2020) have been investigated.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Methods for Estimating the Optimum Plot Size for Pearl Millet, Slender Leaf Rattlebox, and Showy Rattlebox

et al. 2021

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This study aimed to compare three methods of estimating the optimum plot size to evaluate the fresh matter productivity of pearl millet (Pennisetum glaucum L.), slender leaf rattlebox (Crotalaria ochroleuca), and showy rattlebox (Crotalaria spectabilis). Twenty-seven uniformity trials were carried out with pearl millet, slender leaf rattlebox, and showy rattlebox cultivated alone and intercropped. Fresh matter productivity was evaluated in 972 basic experimental units (BEU) of 1 m × 1 m (36 BEU per trial). The optimum plot size was determined using the methods modified maximum curvature, linear response with plateau model, and quadratic response with plateau model. The optimum plot size differs between methods and decreases in the following order: quadratic response with plateau model (9.94 m2), linear response with plateau model (7.41 m2), and modified maximum curvature (3.49 m2). The optimum plot size to evaluate the fresh matter productivity of pearl millet, slender leaf rattlebox, and showy rattlebox cultivated alone or intercropped is 7.41 m2. This size could be used as a reference for future experiments.

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Section: Introductionmentioning

confidence: 99%

“…These experiments were carried out in plots of 12 m 2 (PFÜLLER et al, 2019), 24 m 2 (FERREIRA et al, 2019), 25 m 2 (ASCARI et al, 2020), 50 m 2 (PASSOS et al, 2017), 60 m 2 (DEBIASI et al, 2016), and 150 m 2 (SOUSA et al, 2017). However, the criteria used to define the plot size were not mentioned.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Methods for Estimating the Optimum Plot Size for Pearl Millet, Slender Leaf Rattlebox, and Showy Rattlebox

et al. 2021

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“…The use of cover crops in a rotational system with annual crops provides several benefits to the productive system, especially nutrient cycling (Pacheco et al, 2017;Tiecher et al, 2012), protection from raindrop impact, with reduced soil surface degradation (Dalla and erosion reduction (Nielsen et al, 2016). It can also increase organic carbon (Ferreira et al, 2016;Sousa et al, 2017), which improves soil physical, chemical and biological properties and mitigates environmental impacts caused by land use (Qu et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Dry Mass Accumulation, Nutrients and Decomposition of Cover Plants

Sousa¹,

Medeiros²,

Lacerda³

et al. 2019

JAS

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The use of cover crops is an important strategy for soil management in the Brazilian Cerrado to improve no-tillage (NT) systems. For this, it is necessary know the potential of cover crop species for biomass production, nutrient cycling, and persistence of residues on the soil surface in soils and climatic conditions of this biome. Thus, the experiment was developed to evaluate the agronomic potential of cover crops cultivated on an Oxisol (Latossolo Amarelo) in the Cerrado of Piauí, Brazil. The experiment was conducted from January 2015 to July 2016. The experimental design was in randomized blocks with 11 treatments and four replicates. The treatments consisted of single and intercropped cover species. The evaluations were: dry mass production, nutritional composition of the plants, nutrient accumulation by dry mass produced and decomposition rate of the dry mass produced for each treatment. The higher dry matter production was obtained with Crotalaria juncea, Cajanus cajan (cv. IAC-Fava larga), Pennisetum glaucum and Brachiaria ruziziensis. The lower dry matter production was obtained with Mucuna aterrima, and mix of Crotalaria spectabilis + Pennisetum glaucum. The higher nutrients accumulation in the plants occurred for Cajanus cajan (cv. IAC-Fava larga), Crotalaria juncea and Crotalaria spectabilis. The cover plants studied presented good potential for soil conservation, due to the permanence of residues on the surface, except for Mucuna aterrima and Crotalaria spectabilis.

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“…Soil use is considered one of the main agents of global change due to its influence or the carbon (C) and nitrogen (N) cycles in the emission of greenhouse gases, mainly CO 2 , CH 4 and N 2 O. It is one off the factors that have the greatest direct impact on the chemical, physical and biological properties of agricultural soils (SMITH et al, 2016;SOUSA et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Soil conservation management systems represented by crop rotation, use of cover plants, direct sowing or minimum tillage have been widely practiced to mitigate the negative effects of conventional soil management practices, due to the soil and nutrient losses, exhaustion of organic matter, elevation of gas emissions in agricultural soils and losses of edaphic biodiversity (SOUSA et al, 2017;SILVA et al, 2018;MENDONÇA et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Microbial responses to doses of cover plant straw in cerrado piauiense oxisol

et al. 2020

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Carbon and nitrogen from the soil microbial biomass play a significant role in the rotation of C and N, and promote nutrient cycling. Thus, the objective of this study was to evaluate changes in the soil microbial biomass with growing doses of cover plant straw species. The cover plants cultivated in the cerrado biome region were incorporated an Oxisol Ustox. The straw of each cover plant was incorporated at doses of 0; 10; 20 and 30 Mg ha-1. The soil basal respiration was determined by incubating, after 21 days. The microbial biomass carbon and nitrogen were determined by the method the microwave irradiation. The microbial biomass carbon and nitrogen contents in extracts were determined by the wet combustion method and Kjeldahl-N. The metabolic quotient was calculated as the ratio between soil basal respiration rate and microbial biomass C, and the microbial quotient as the ratio between soil microbial biomass C and total carbon of soil. The soil microbial population measured by the attributes of quality responds to the addition of the of grass and legume straws incorporated to the soil; The treatments that cause the greatest stress to the microbial population, at 21 days, mediated by the metabolic quotient, are guandu-anão at a dose of 10 Mg ha-1; Guandu-anão and Guandu fava-larga at 20 Mg ha-1 and Brachiária at a dose of 30 Mg ha-1; The best result regarding microbial attributes of soil quality evaluated was observed with the incorporation of all doses of the straw of Crotalaria-ocroleuca.

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Chemical attributes of agricultural soil after the cultivation of cover crops

Cited by 10 publications

References 25 publications

Comparison of Methods for Estimating the Optimum Plot Size for Pearl Millet, Slender Leaf Rattlebox, and Showy Rattlebox

Comparison of Methods for Estimating the Optimum Plot Size for Pearl Millet, Slender Leaf Rattlebox, and Showy Rattlebox

Dry Mass Accumulation, Nutrients and Decomposition of Cover Plants

Microbial responses to doses of cover plant straw in cerrado piauiense oxisol

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