Fitomassa e acúmulo de nitrogênio, em espécies vegetais de cobertura do solo para um Latossolo Vermelho distroférrico de Cerrado

Souza, Edicarlos Damacena de; Banys, Vera Lúcia

doi:10.4025/actasciagron.v30i4.5313

Cited by 9 publications

(8 citation statements)

References 3 publications

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“…This effect is probably due to the fact that grass has a divided root system that allows greater aggregation because it has more contact with soil particles. Similar results were observed by Souza et al (2008).…”

Section: Resultssupporting

confidence: 81%

Physical quality of a yellow latossol under integrated crop-livestock system

Araújo

Salviano²,

Leite

et al. 2010

Rev. Bras. Ciênc. Solo

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SUMMARYSoil physical quality is essential to global sustainability of agroecosystems, once it is related to processes that are essential to agricultural crop development. This study aimed to evaluate physical attributes of a Yellow Latossol under different management systems in the savanna area in the state of Piaui. This study was developed in Uruçuí southwest of the state of Piauí. Three systems of soil management were studied: an area under conventional tillage (CT) with disk plowi and heavy harrow and soybean crop; an area under no-tillage with soybean-maize rotation and millet as cover crop (NT + M); two areas under Integrated CropLivestock System, with five-month pasture grazing and soybean cultivation and then continuous pasture grazing (ICL + S and ICL + P, respectively). Also, an area under Native Forest (NF) was studied. The soil depths studied were 0.00-0.05, 0.05-0.10 and 0.10-0.20 m. Soil bulk density, as well as porosity and stability of soil aggregates were analyzed as physical attributes. Anthropic action has changed the soil physical attributes, in depth, in most systems studied, in comparison to NF. In the 0.00 to 0.05 m depth, ICL + P showed higher soil bulk density value. As to macroporosity, there was no difference between the management systems studied and NF. The management systems studied changed the soil structure, having, as a result, a small proportion of soil in great aggregate classes (MWD). Converting native forest into agricultural production systems changes the soil physical quality. The Integrated Crop-Livestock System did not promote the improvement in soil physical quality.Index terms: no-tillage system, soil compaction, animal trampling, pasture grazing.( Estudou-se, ainda, uma área sob Floresta Nativa de Cerrado (FN). As profundidades estudadas foram: 0,05, 0,10 e 0,20

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Section: Resultssupporting

confidence: 81%

Physical quality of a yellow latossol under integrated crop-livestock system

Araújo

Salviano²,

Leite

et al. 2010

Rev. Bras. Ciênc. Solo

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“…No Brasil, essa planta tem sido cultivada nas regiões Sul, Sudeste e Centro-Oeste como adubo verde e planta de cobertura em sistemas de cultivos conservacionistas, a exemplo do plantio direto (CRUSCIOL et al, 2005), e vem se expandindo para regiões em que predominam altas temperaturas. No município de Jataí (Goiás), a cultura do naboforrageiro foi promissora na produção de biomassa para cobertura de solo (SOUZA et al, 2008); em Montes Claros no Norte de Minas Gerais, o cultivo dessa espécie como adubo verde proporcionou incrementos na produtividade da cultura sucessora (VALADARES et al, 2012).…”

Section: Introductionunclassified

“…III Programa de Pós-graduação em Agricultura, Departamento de Produção Vegetal, UNESP, Botucatu, SP, Brasil. Ciência Rural, v.44, n.2, fev, 2014. acima de 30°C, assim, a garantia de sucesso na produção de massa seca (plantio direto) ou verde (adubação verde), dependerá, dentre outros aspectos, do estabelecimento das plântulas no campo, o que, segundo CARVALHO & NAKAGAWA (2012), está diretamente relacionado com a germinação e vigor das sementes. Na escolha de espécies para o sistema de plantio direto, é importante defi nir uma cultura para a formação da cobertura adaptada às condições climáticas da região (SOUZA et al, 2008).…”

Section: Introductionunclassified

Seleção de progênies de nabo-forrageiro para germinação sob altas temperaturas

et al. 2014

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“…found that a high supply of plant material from niger (>14 Mg ha -1 ) increased soil microbial activity and improved its structure. According to Souza et al (2008), niger meets the requirements for a ground cover species because it produces > 6 Mg ha -1 phytomass and accumulates > 100 kg/ ha nitrogen. These characteristics increase the organic residue content in the soil and reduce soil density (Araujo-Junior et al, 2011).…”

Section: Resultsmentioning

confidence: 99%

Structural Quality of a Latosol Cultivated with Oilseed in Succession to Corn

Bergamin

Vitorino

Prado

et al. 2018

Ciencia e investigación agraria

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Quality of a Latosol Cultivated with Oilseed in Succession to Corn. Cien. Inv. Agr. 45(2): 169-180. Mechanized operations on soils with inadequate moisture cause compaction and are deleterious to soil quality. The aim of this study was to evaluate the influence of different oilseed crop successions on the structural quality of a clayey Rhodic Hapludox. Sunflower (Helianthus annuus L.), canola (Brassica napus L. and Brassica rapa), safflower (Carthamus tinctorius L.), crambe (Crambe abyssinica Hochst.), and niger (Guizotia abyssinica) were sown in autumn/winter in a no-tillage system in succession to corn grown in the summer and soybean/corn grown in summer/autumn-winter. When the autumn-winter crops began to grow, soil samples were collected in metallic cylinders at 0.0-0.05 m and 0.05-0.10 m depths. Analyses of the optimal water interval in each crop succession at the 0.0-0.05 m layer indicated that the corn/safflower and corn/crambe successions reduced the structural quality of the soil. The autumn-winter niger crop in succession to summer corn improved the soil structure at 0.0-0.05 m and 0.05-0.10 m when compared with the soil cultivated with the soybean/corn succession. The niger crop is an effective crop rotation alternative that improves the physical quality of the soil under no-tillage systems.

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Fitomassa e acúmulo de nitrogênio, em espécies vegetais de cobertura do solo para um Latossolo Vermelho distroférrico de Cerrado

Cited by 9 publications

References 3 publications

Physical quality of a yellow latossol under integrated crop-livestock system

Physical quality of a yellow latossol under integrated crop-livestock system

Seleção de progênies de nabo-forrageiro para germinação sob altas temperaturas

Structural Quality of a Latosol Cultivated with Oilseed in Succession to Corn

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