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All publications of “Edicarlos Damacena de Souza”

8 results

Biochemical and Biological Properties of Soil from Murundus Wetlands Converted into Agricultural Systems

Luciene Nunes Barcelos Martins, Flávia Louzeiro de Aguiar Santiago, Marcela Susana Montecchia, Olga Susana Correa, Orivaldo José Saggin Junior, Edicarlos Damacena de Souza, [...]

14/Jun/2019

ABSTRACT The implementation of conservationist systems that improve soil properties and reduce the impacts of the conversion of native areas is fundamental for feasible agricultural exploitation. This study aimed to evaluate the impact on soil biological properties caused by the conversion of murundus fields into agricultural systems and verify the ability of the no-tillage conservation system to recover these properties over the years. Treatments consisted of three agricultural areas subjected to the same management (no-tillage), in a chronosequence (7, 11, […]

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Soil aggregation in a crop-livestock integration system under no-tillage

Edicarlos Damacena de Souza, Sérgio Ely Valadão Gigante de Andrade Costa, Ibanor Anghinoni, Paulo César de Faccio Carvalho, Eric Victor Ferreira de Oliveira, Amanda Posselt Martins, [...]

01/Aug/2010

Grazing intensities can influence soil aggregation, which can be temporarily and permanently affected. The objective of this study was to evaluate the aggregate stability in water at the end of a soybean cycle and during pasture development in a crop-livestock integration system under no-tillage and grazing intensities. The experiment was initiated in 2001, in a dystrophic Red Latosol, after soybean harvest. Treatments consisted of pasture (black oat + Italian ryegrass) at heights of 10, 20 and 40 cm, grazed by young […]

Gypsum in management systems and soybean productivity in southwest region of Goiás

Lucimeire Neis, Helder Barbosa Paulino, Edicarlos Damacena de Souza, Edésio Fialho dos Reis, Flávio Araújo Pinto

01/Apr/2010

The tilling of areas in no-tillage to several years and the use of gypsum practices are observed among the farmers in southwestern Goiás. This study was carried out to evaluate the effect of gypsum rates (0, 1, 2, 4 e 6 Mg ha-1) on some chemical attributes in the soil’s depth and in soybean yield in area under long-term no-till, with and without tillage. A complete randomized block scheme with a split-split-plot design with four replicates was used. The area […]

Soil microbial biomass in a no-tillage integrated crop-livestock system under different grazing intensities

Edicarlos Damacena de Souza, Sérgio Ely Valadão Gigante de Andrade Costa, Ibanor Anghinoni, Christina Venzke Simões de Lima, Paulo César de Faccio Carvalho, Amanda Posselt Martins

01/Feb/2010

In integrated crop-livestock systems most of the nutrient supply for a pasture is provided by animal excretions, in the form of manure or urine, stimulating the activity and accumulation of nutrients in the cells. This study was carried out in an integrated crop-livestock system under no-tillage, initiated in 2001, with the objective of evaluating the impact of different winter grazing intensities (black oat + Italian ryegrass; 10, 20, and 40 cm, and a no-grazing control treatment) on microbial activity and […]

Soil organic carbon and nitrogen stocks in an untilled crop-livestock integration system under different grazing intensities

Edicarlos Damacena de Souza, Sergio Ely Valadão Gigante de Andrade Costa, Ibanor Anghinoni, Paulo César de Faccio Carvalho, Marcelo Andrigueti, Eduardo Cao

01/Dec/2009

The potential for adopting crop-livestock systems in southern Brazil is high, especially in untilled soybean areas with cover crops in the winter season. The long-term use of this system at different grazing intensities will result in different carbon and nitrogen stocks in the soil due to the different plant and animal residues. This research was conducted to evaluate alterations in total carbon and nitrogen pools and in organic matter fractions in a soil under different grazing intensities under no-tillage. The […]

Potassium and root distribution in soil and corn growth in long-term soil management and fertilization systems

Sérgio Ely Valadão Gigante de Andrade Costa, Edicarlos Damacena de Souza, Ibanor Anghinoni, João Paulo Cassol Flores, Marcelo Hoerbe Andriguetti

01/Oct/2009

Soil tillage systems can greatly influence potassium and root distribution in the soil and, as a result, affect corn growth and development. To improve the understanding of these interrelationships, a soil was analyzed after 18 years of cultivation under different management systems. A detailed soil sampling was carried out in a clayey Red Argisol (Udult) profile in the beginning of the grain filling stage of corn in the 2006/07 growing season. The experimental design consisted of a completely randomized scheme […]

Physical, chemical and biological properties of cerrado soil under different land use and tillage systems

Marco Aurélio Carbone Carneiro, Edicarlos Damacena de Souza, Edésio Fialho dos Reis, Hamilton Seron Pereira, Watson Rogério de Azevedo

01/Feb/2009

As knowledge on no-till system expands, it has become quite clear that separate chemical indicators cannot provide a detailed soil characterization. The objective of this study was to evaluate the effects of tillage systems and soil use in the physical, chemical and biological properties of a clayey dystrophic Red Latosol – Oxisol and a sandy Neosol – Entisol. The treatments for the Oxisol consisted of: native savanna, pasture, conventional tillage, no-tillage with turnip and with forage sorghum as cover crop. […]

Organic carbon and microbial phosphorus in a no-till integrated crop-livestock system under different grazing intensities

Edicarlos Damacena de Souza, Sergio Ely Valadão Gigante de Andrade Costa, Christina Venzke Simões de Lima, Ibanor Anghinoni, Egon José Meurer, Paulo César de Faccio Carvalho

01/Jun/2008

Integrated crop-livestock systems have attracted more interest in the last few years due to their capacity of improving stability and sustainability of agricultural systems as compared to more specialized production systems. Soil organic carbon content has been used as an indicator of soil sustainability and stability. In this sense, this study aimed to measure the stocks of total organic carbon fractions and phosphorus in the microbial biomass in a Rhodic Hapludox (Oxisol) under integrated crop-livestock system with different grazing intensities […]