Espécies de plantas de cobertura no recondicionamento químico e físico do solo

Cardoso, Dione Pereira; Silva, Marx L. N.; Carvalho, Gabriel José de; Freitas, Diego Antonio França de; Avanzi, Junior César

doi:10.5039/agraria.v8i3a2421

Cited by 19 publications

(15 citation statements)

References 18 publications

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“…This modification in the soil pH with vegetal residues is due to organic acids with carboxyl and hydroxyl phenolic groups, which have an important role in the acidity buffering and pH variation in acid soils . Different results were reported in other studies in which the soil pH was not modified by crotalaria, Canavalia ensiformis and millet (Almeida et al, 2008;Cardoso et al, 2013). Other studies show that the addition of organic residues may increase soil pH values (Silva et al, 2007;Silva et al, 2008;Celik et al, 2012).…”

Section: Other Soil Chemical Propertiescontrasting

confidence: 39%

“…Among the species tested, the highest levels of K + were verified in the treatment with C. espectabilis and the lowest with C. juncea. Cardoso et al (2013) observed that K + content ranged from 47 to 76 mg dm -3 , with the highest value found in the control and in Canavalia ensiformis in the 0.25 m spacing. The other treatments presented a K + reduction and crotalaria showed the lowest content of this element, with values of 47 and 51 mg dm -3 in the 0.25 and 0.50 m spacing, respectively.…”

Section: Potassium Calcium and Magnesium Interaction In The Soilmentioning

confidence: 94%

“…However, the lowest concentrations of P in the soil occurred with brachiaria, C. ochroleuca, and M. aterima. Cardoso et al (2013) observed that P content increased by 0.6 mg dm-3 in the soil when it was cultivated with Canavalia ensiformis and millet, 27 days after the cover crops cut (130 days after sowing), which corresponds to the beginning of phytomass decomposition. The increase in P was attributed to the ability of these plants to absorb P from sub-surface horizons and make it available to the surface.…”

Section: Soil Phosphorus Availabilitymentioning

confidence: 99%

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Chemical attributes of agricultural soil after the cultivation of cover crops

Sousa¹,

Medeiros²,

Rosa³

et al. 2017

Aust J Crop Sci

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The use of cover crops is a strategy to maintain the productive capacity of agricultural soils. The increase of organic carbon content, nutrient cycling and, consequently, the increase in soil fertility are some of the greatest benefits. This study evaluated the chemical attributes of the soil after the use of cover crops species in the Cerrado region of Piaui. The experiment was carried out from January 2015 to July 2016. It was performed in a completely randomized block design with eleven treatments and four replicates. ), potential acidity (H + Al), soil organic carbon (OC), the saturation of bases (V%), saturation by aluminum (m%) and effective CEC were measured. Fifteen months after their establishment, cover crops positively influenced the levels of P, K and OC with no changes in the other chemical properties. The OC contents were higher with the use of C. cajan -cv. 'fava larga', brachiaria and C. ochroleuca + millet, mainly in the topsoil. C. espectabilis, spontaneous vegetation, M. aterrima, brachiaria and C. ochroleuca were the most efficient in K cycling.

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Section: Other Soil Chemical Propertiescontrasting

confidence: 39%

Section: Potassium Calcium and Magnesium Interaction In The Soilmentioning

confidence: 94%

Section: Soil Phosphorus Availabilitymentioning

confidence: 99%

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Chemical attributes of agricultural soil after the cultivation of cover crops

Sousa¹,

Medeiros²,

Rosa³

et al. 2017

Aust J Crop Sci

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“…Profundidade ( O mesmo não foi obtido por Cardoso et al (2013) em experimento instalado realizado em Lavras (MG) sobre um Argissolo Vermelho Amarelo distrófico, na qual observou que a densidade do solo, volume total de poros, microporosidade e macroporosidade, não são alterados após o cultivo das plantas de cobertura crotalária, feijão-de-porco e milheto, Uma hipótese do estudo foi que haveria redução da densidade do solo e aumento da macroporosidade pelo uso de plantas de cobertura no perfil do solo, no entanto, foi constatado apenas na camada mais superficial no primeiro ano de estudo (2010). Cabe destacar, que a avaliação da densidade foi realizada após 2 anos de cultivo com plantas de cobertura, período que pode ser considerado curto para recuperar a qualidade física deste solo, como observado por Genro Junior et al (2004).…”

Section: Coberturas Vegetaisunclassified

Plantas de cobertura e qualidade química e física de Latossolo Vermelho distrófico sob plantio direto

Silva

Arf

Sá

et al. 2017

Agraria

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RESUMOO trabalho teve como objetivo avaliar a influência de plantas de cobertura nos atributos químicos e físicos do solo. O delineamento experimental utilizado foi o de blocos casualizados, em esquema de parcelas subdivididas com 4 repetições. As parcelas foram constituídas por: milheto, crotalária, guandu, mucuna-preta, milheto + guandu, milheto + crotalária e milheto + mucuna e pousio. As subparcelas foram constituídas por ausência de adubação fosfatada e doses de P 2 O 5 (60, 90 e 120 kg ha -1 ) na forma de monoamônio fosfato (MAP). Nas subparcelas que não receberam adubação fosfatada foram analisados os atributos químicos e físicos do solo. As espécies utilizadas como cobertura ocasionaram alterações nas propriedades químicas e físicas do solo. O solo mantido com milheto + mucuna preta apresentou os maiores valores de P e Ca, sobre milheto maiores valores de MO, o guandu maiores valores de K, e aqueles sob o consorcio milheto + guandu maiores concentrações de de Mg.O solo mantido com milheto apresentou menores valores de densidade e maiores valores de porosidade. Palavras-chave: Crotalaria juncea; Cajanus cajan; Mucuna aterrima; Pennisetum americanum; teores de nutrientes Cover crops and chemical and physical quality of Oxisoil under no-tillage ABSTRACTThe study aimed to evaluate the influence of species of cover crops on chemical and physical soil properties. The survey was conducted during the winter of 2010 and 2011 in Selvíria, Mato Grosso do Sul State, Brazil. The experimental design was a randomized block in a split plot with four replicates. The plots consisted of: millet, sun hemp, pea, velvet bean, millet + pigeon pea, millet and millet + crotalaria, and mucuna fallow. The subplots were represented by the absence of phosphate fertilizers and P 2 O 5 rates (60, 90 and 120 kg ha -1 ) in the form of monoammonium phosphate (MAP). The subplots that have not received phosphate fertilizer chemical and physical soil properties were analyzed. The species used as cover caused changes in the chemical and physical properties of the soil. The soil maintained with millet + black mucuna presented the highest values of P and Ca, on millet higher values of OM, pigeon higher values of K, and those under the consortium millet + pigeon had higher concentrations of Mg. The soil maintained with millet Presented lower values of density and higher values of porosity.

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“…The resistance to penetration is a physical property of the soil used to evaluate the effect of soil management system on the root environment (Calonego et al, 2017). Depending on the level of compaction, root growth of the crops may be impaired (Cardoso et al, 2013), with negative effects on yield (Bogunovic et al, 2017). Soil resistance to root penetration is directly linked to the density and distribution of pores that are formed following the decomposition of plant roots (Lin et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Effect of cover crops on physico-chemical attributes of soil in a short-term experiment in the southwestern Amazon region

Passos¹,

Aker²,

Costa³

et al. 2017

Afr. J. Agric. Res.

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No-tillage is an agricultural system that is proposed as a sustainable soil management system. This paper aims to evaluate the short-term effects of cover crops on a no-tillage system, by assessing a number of physical and chemical attributes of soil of the Brazilian Amazon region. The experiment was carried out in a typical Ferralsol under a no-tillage system from March to December, 2014. A randomized block design, with four replicates was used. The performance and effects of fourteen cover crops (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, Crotalaria ochroleuca, Crotalaria spectabilis, Stizolobium aterrima, Stizolobium cinereum, Pennisetum glaucum, Sorghum bicolor, Sorghum sudanense, Urochloa brizanha cv. Xaraés, Urochloa brizantha cv. Piatã and Urochloa ruziziensis and Zea mays) and fallow (control treatment) on the soil quality were assessed. The cover crops were sown in the off season in April 2014, before the summer crop (maize). The levels of P, K, Ca 2+ , Mg 2+ , Al 3+ , H+Al, saturation by aluminum, sum of bases, organic matter, pH and resistance to soil penetration were evaluated following the end of the cover crops growth. Some near-surface soil attributes were affected by the cover crops. Urochloa species improved the levels of potassium in the soil at depths up to 5 cm below the surface. The highest penetration resistance was observed in the superficial layer between 12 and 16 cm deep, with penetration resistance values varying between 2472 and 2912 kPa. The Urochloa exhibited satisfactory agronomic performance when grown under a simulated crop livestock integration system. It is concluded that the use of cover crops in a no-till system has the potential to improve the chemical quality of soil in the Southwestern Amazon region.

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Espécies de plantas de cobertura no recondicionamento químico e físico do solo

Cited by 19 publications

References 18 publications

Chemical attributes of agricultural soil after the cultivation of cover crops

Chemical attributes of agricultural soil after the cultivation of cover crops

Plantas de cobertura e qualidade química e física de Latossolo Vermelho distrófico sob plantio direto

Effect of cover crops on physico-chemical attributes of soil in a short-term experiment in the southwestern Amazon region

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