SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

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	Infoteca-e (2)
	Repositório Alice (1)
	Iheringia, Sér. Zool. (1)

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	Artigo de periódico (1)
	Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) (1)
	Documentos (INFOTECA-E) (1)
	Info:eu-repo/semantics/article (1)

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	2016 (1)
	2008 (1)
	2003 (1)
	2001 (1)

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Brazil (4)

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Carbono da biomassa microbiana em solos de cerrado: comparacao dos metodos fumigacao-incubacao e fumigacao-extracao.

Infoteca-e

OLIVEIRA, J. R. A.; MENDES, I. de C.; VIVALDI, L. J..

Dentre os metodos mais utilizados para determinacao do carbono da biomassa microbiana destacam-se: os de cloroformio-fumigacao-incubacao (CFI) e cloroformio-fumigacao-extracao (CFE). Trabalhos relatados na literatura tem comparado a eficiencia desses metodos em diversos locais. No entanto, para a regiao do cerrado nao existem informacoes a esse respeito. O objetivo deste trabalho foi avaliar a eficiencia dos metodos CFE e CFI na determinacao do carbono da biomassa microbiana do solo (CBMS) em areas de cerrado sob cultura anual (rotacao soja-milho) e pastagem consorciada (Andropogon gayanus e Stylosanthes guianensis) e sob tres fitofisionomias - Mata de Galeria, Campo Sujo e Cerradao. Amostras de solo coletadas em duas profundidades, 0 a 5 cm e 5 a 20 cm,...

Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)

Palavras-chave: Mata de Galeria; Cerradao; Campo Sujo; Cultura anual; Soil microbial biomass; Gallery Forest; Legume-based pastures; Annual crops; Solo: Biologia e Microbiologia.; Biologia do Solo; Cerrado; Pastagem Consorciada; Solo.; Cerrado soils..

Ano: 2001

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567076

Composition and diversity of bees (Hymenoptera) attracted by Moericke traps in an agricultural area in Rio Claro, state of São Paulo, Brasil

Iheringia, Sér. Zool.

Souza,Luceli de; Campos,Maria J. de O..

The composition and diversity of bees in an agricultural area in Rio Claro, state of São Paulo, Brazil, were studied from May 2003 to June 2004, using Moericke traps. The collection site, an area with 58.08 hectares, is characterized by grain production and direct planting, with 70% of the surrounding area planted with sugar cane. During the study, 456 bees were collected, distributed among 20 genera, pertaining to the families Andrenidae (4.8%), Apidae (40.8%) and Halictidae (54.4%). Specimens of genera Dialictus (38%) and Diadasia (30%) predominated in this area. The species diversity, assessed using the Shannon and Simpson indices, were H=1.88 and 1/ D= 4.15, respectively, and the Evenness index was 0.61.

Tipo: Info:eu-repo/semantics/article

Palavras-chave: Community ecology; Apifauna; Annual crops; Direct planting; Pantraps.

Ano: 2008

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000200012

Emprego de modelos matemáticos para pesquisa e gerenciamento de sistemas integrados de lavoura e pecuária.

Infoteca-e

VELOSO, R. F.; BARIONI, L. G.; MARTHA JUNIOR, G. B..

ABSTRACT: Annual crops have been frequently used for the establishment and renewing of pastures in the Brazilian Cerrado. However it was only recently that cropping and cattle production have been treated as integrated systems' components. In this context, the publication shows how system concepts and its implementation through mathematical modeling can be used in the management of integrated crop-livestock production systems. Further, it is concluded that the increasing access to computers is creating great opportunities to store and spread out information to better support decision-making. It is concluded, however, that the development of computer models for integrated systems is still incipient and that closer collaboration among researchers of...

Tipo: Documentos (INFOTECA-E)

Palavras-chave: Modelagem matemática; Cultura anual; Sistema de suporte; Plant production; Annual crops; Decision support.; Bovino; Lavoura; Pastagem; Pecuária.; Animal husbandry; Cattle; Pastures.; Mathematical models.

Ano: 2003

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569198

Surface application of limestone and calcium-magnesium silicate in a tropical no-tillage system.

Repositório Alice

CASTRO, G. S. A.; CRUSCIOL, C. A. C.; COSTA, C. H. M. da; FERRARI NETO, J.; MANCUSO, M. A. C..

Although lime is currently the most commonly applied material for soil acidity correction in Brazil, calcium-magnesium silicate application may efficiently replace this source due to its higher solubility and silicon supply, which is beneficial for plant development. This study aimed to evaluate the efficiency of surface liming and silicate application on soil chemical attributes as well as soybean and maize nutrition, yield components, and grain yield. The experiment was conducted in a Rhodic Hapludox in Botucatu-SP, Brazil. The randomized complete block design contained 16 replications. Treatments consisted of two materials for soil acidity correction (dolomitic lime, calcium/magnesium silicate), applied on October 2006 to raise base saturation up to...

Tipo: Artigo de periódico

Palavras-chave: Annual crops; Colheitas anuais; Solos ácidos.; Calagem; Cerrado.; Acid soils; Liming..

Ano: 2016

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1057241

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