Influência do sistema integrado de produção agropecuária no solo e na produtividade de soja e braquiária

Bonetti, João de Andrade; Paulino, Helder Barbosa; Souza, Edicarlos Damacena de; Silva, Geanderson Nascimento da

doi:10.1590/1983-40632015v4529625

Cited by 38 publications

(36 citation statements)

References 21 publications

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“…In this study, the ISA has the culture in the pasture phase Urochloa ruziziensis, which is a grassy high production of shoots and roots, which favors increases in levels of soil organic matter. Bonetti et al (2015), evaluating the addition of dry matter of shoot and root residues in this work area observed adding 15 Mg ha-1 of dry matter of soybean and U. ruziziensis and 10 Mg ha-1 root (0-20 cm) totaling 25 Mg ha-1 of added waste. This shows that there is a clear trend of increase in MOS stocks in this area with the time of adoption of the system.…”

Section: Resultsmentioning

confidence: 77%

Management systems and soil use on fractions and stocks of organic carbon and nitrogen total in cerrado latosol

Silva¹,

Bonetti²,

Souza³

et al. 2016

Biosci. J.

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Section: Resultsmentioning

confidence: 77%

Management systems and soil use on fractions and stocks of organic carbon and nitrogen total in cerrado latosol

Silva¹,

Bonetti²,

Souza³

et al. 2016

Biosci. J.

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“…The Urochloa ruziziensis species (R. Germ & Evrard) has been studied due to its potential attributes for improving the soil physical conditions in crop systems, especially the NTS (Bonetti et al, 2015). Calonego et al (2011b) noted that sorghum (Sorghum bicolor (L.) Moench) and U. ruziziensis are species able to break highly dense layers of soil.…”

Section: Introductionmentioning

confidence: 99%

Shoot and root development of brachiaria grass (Urochloa ruziziensis) under different levels of soil density

Pacheco¹,

Miguel²,

Souza³

et al. 2016

Aust J Crop Sci

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For mitigation of negative effects of human activities on the soil density, the use of cover crops in no-tillage system (NTS) has been strongly recommended. This study aims to evaluate the shoot and root development of Urochloa ruziziensis subjected to soil density levels in dystrophic Oxisol. The experiment was conducted in a greenhouse with a completely randomized design, with five treatments and four replications. The treatments consisted of U. ruziziensis submitted to five levels of soil density (1.0, 1.2, 1.4, 1.6 and 1.8 Mg m -3 ), twenty experimental units in total. The Urochloa ruziziensis showed reduced plant height, leaf area and number of leaves with increasing soil density, resulting in morphological and physiological changes from densities higher than 1.6 Mg m -3 . However, these results demonstrate the ability of this species to break the compacted ground and form biopores. The Oxisols value of 1.4 Mg m -3 is restrictive for the plant growth and development.

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“…Grazing intensity affects the amount of plant residues that are left by the off-season crop to ensure sufficient straw contents for the following crop in the summer season using the no-tillage system (NTS) (BIELUCZYK, 2014;BONETTI et al, 2015). The success of the CLI system is also dependent on crop rotation and crop and pasture species (CARVALHO et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…The most suitable CLI conditions are strictly related to the edaphoclimatic conditions of the region (LEMAIRE et al, 2014;SALTON et al, 2014). Previous studies have evaluated several soil quality indicators in the Cerrado biome, including the light organic matter (LOM) content (LOSS et al, 2011(LOSS et al, , 2012a, carbon (Cst) and nitrogen (Nst) stocks (SOUZA et al, 2009;GAZOLLA et al, 2013), soil density (SD) (FLORES et al, 2007;CONTE et al, 2011;BONETTI et al, 2015), and remaining phosphorus (Prem) (BIELUCZYK, 2014;BEUTLER et al, 2015;BEZERRA et al, 2015), and have compared different CLI systems and/or grazing intensities with areas without grazing and/ or native vegetation.…”

Section: Introductionmentioning

confidence: 99%

Soil carbon and nitrogen stocks, light organic matter, and remaining phosphorus under a crop-livestock integration system

Bieluczyk

Pereira

Guareschi

et al. 2017

SCA

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Crop-livestock integration (CLI) is a management system that has been developed for a variety of soil and climatic conditions, which combined with the no-tillage system (NTS), has many variations in Brazil, particularly regarding grazing intensity. The objective of this study was to assess the effects of different grazing intensities and soybean (Glycine max L.) crops on carbon (Cst) and nitrogen (Nst) stocks, light organic matter (LOM), root content of the LOM (RLOM), and remaining phosphorus ) of pasture grown in a CLI system. Two control areas, an area without grazing (AWG) and a native vegetation area of the Cerrado biome (NCA), which were adjacent to the experimental area, were compared with the cultivated areas. Soil samples were collected from 0.00-0.05, 0.05-0.10, and 0.10-0.20 m beneath each area in a completely randomized design with six replications. Soil characteristics were evaluated in the post-pasture cycle period (PP) and the postsoybean crop period (PC), which coincided with the wet and dry seasons, respectively. The NCA had more LOM in the 0.00-0.05 m layer during the PC and the 0.05-0.10 m layer during both the PP and the PC, C in the LOM in the 0.00-0.20 m layer during the PP and the PC, N in the LOM in the 0.00-0.05 m layer in the PC and the 0.05-0.10 m layer in the PP and the PC, and Cst in the 0.00-0.20 m layer in the PP and the PC than the cultivated areas, but a lower soil density (SD) and Prem in the 0.00-0.20 m layer during both the PP and the PC. Treatment P35 had more Nst in the PC and RLOM in the PP than the other cultivated treatments and the AWG. The absence of grazing in the AWG decreased the SD from the PP to the PC, while the treatments with different grazing intensities had similar values throughout this period. Our results suggest that production could be intensified under light and moderate grazing intensities in the CLI system. Key words: No-tillage system. Grazing intensity. Soil organic matter. Cerrado biome. ResumoA integração lavoura-pecuária (ILP), combinada ao sistema plantio direto (SPD), é um sistema de manejo que tem sido desenvolvido para diversas condições edafoclimáticas, com muitas variações no Brasil, principalmente quanto a intensidade de pastejo. O objetivo deste estudo foi avaliar os efeitos de diferentes intensidades de pastejo e cultivo da soja (Glycine max L.) nos estoques de carbono (EstC) e nitrogênio (EstN), matéria orgânica leve (MOL), conteúdo de raízes na MOL (RMOL) e fósforo remanescente (

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Influência do sistema integrado de produção agropecuária no solo e na produtividade de soja e braquiária

Cited by 38 publications

References 21 publications

Management systems and soil use on fractions and stocks of organic carbon and nitrogen total in cerrado latosol

Management systems and soil use on fractions and stocks of organic carbon and nitrogen total in cerrado latosol

Shoot and root development of brachiaria grass (Urochloa ruziziensis) under different levels of soil density

Soil carbon and nitrogen stocks, light organic matter, and remaining phosphorus under a crop-livestock integration system

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