Results 31 to 40 of about 3,161 (206)

Biochar: Agronomic and environmental potential in Brazilian savannah soils [PDF]

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2012
Due to the high activity of microorganisms, the loss of soil organic matter is high in tropical regions. This loss becomes even greater if the soil is managed improperly or when there is no technology that leverages the permanence of the soil carbon by maintaining appropriate levels of organic matter, providing chemical, physical and biological soil ...
Petter, Fabiano A., Madari, Beata E.
openaire   +3 more sources

A taxonomic contribution to the genus Dolichomitus Smith (Hymenoptera, Ichneumonidae, Pimplinae) from Brazil

open access: yesZooKeys, 2012
In the present study, two new species of Pimplinae, Dolichomitus jatai sp. n. and D. moacyri sp. n. are described, and the distribution range of Dolichomitus annulicornis (Cameron, 1886) is extended.
Ana Paula Loffredo   +1 more
doaj   +1 more source

The first troglobitic species of Perigona Castelnau, 1835 endemic to southeastern Brazil (Carabidae, Perigonini)

open access: yesEuropean Journal of Taxonomy, 2022
We describe the first Neotropical troglobitic species of the genus Perigona Castelnau, 1835 from specimens collected in eight caves located in the Arcos-Pains-Doresópolis speleological province (APD), southeastern Brazil. Perigona spelunca sp. nov.
Thais Giovannini Pellegrini   +2 more
doaj   +1 more source

New records of Berothidae (Insecta: Neuroptera) from Central Brazil

open access: yesRevista Chilena de Entomología, 2020
The species of Berothidae (Insecta: Neuroptera) collected in an area of Brazilian savannah at the Parque Nacional Chapada dos Veadeiros, Alto Paraíso de Goiás municipality, Goiás state, Brazil were documented based in a survey using Malaise traps between
Rogéria Inês Rosa Lara   +1 more
doaj   +1 more source

Ferns and lycophytes of the Cerrado State Park, Paraná, Brazil

open access: yesRodriguésia, 2021
We present a checklist of the ferns and lycophytes from the Cerrado State Park, Jaguariaíva, Paraná, Brazil. This region represents the southernmost limit of Cerrado vegetation in Brazil. The park is located along the Devonian Escarpment, one of the most
Mauricio Gonçalves Nunes   +1 more
doaj   +1 more source

New Records of Distribution for Protomydas coerulescens (Olivier) (Diptera: Mydidae)

open access: yesEntomoBrasilis, 2016
. This paper provide the first record of Protomydas coerulescens (Olivier) for states of Amazonas, Rôndonia and Tocantins, Brazil. Previously, this species was recorded in Colombia and Brazil (Pará, Mato Grosso, Minas Gerais, São Paulo and Rio de Janeiro)
Tiago Kütter Krolow, Rodrigo Vieira
doaj   +1 more source

Describing the diversity of spiders in different vegetation formations from an area of the Brazilian Cerrado [PDF]

open access: yesPapéis Avulsos de Zoologia
Spiders are ubiquitous arachnids in all terrestrial ecosystems, and their distribution is intricately related to the microhabitat-level vegetation structure. The Brazilian Cerrado Savannah is a biome characterized by heterogeneous landscapes. However, it
Edwin de Jesús Bedoya-Roqueme   +8 more
doaj   +1 more source

Methods of soil organic carbon determination in Brazilian savannah soils [PDF]

open access: yesScientia Agricola, 2014
Several methods exist for determining soil organic carbon, and each one has its own advantages and limitations. Consequently, a comparison of the experimental results obtained when these methods are employed is hampered, causing problems in the comparison of carbon stocks in soils.
Sato, Juliana Hiromi   +6 more
openaire   +4 more sources

Growth, nutrient accumulation in leaves and grain yield of super early genotypes of common bean

open access: yesPesquisa Agropecuária Tropical, 2016
There is a lack of researches that evaluate the development and nutrient accumulation in super early genotypes of common bean for the elaboration of fertilization programs.
Adriano Stephan Nascente   +2 more
doaj   +1 more source

Field and remote observations to determine the environmental impact of agrarian reform in the Brazilian Midwest [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
Brazil’s Midwest is composed of four biomes, the Cerrado (Brazilian savannah), predominant in the region; the Pantanal, the largest irrigated plain on the planet; the Amazon biome; and the Atlantic Forest.
ALENCAR G. BACARJI   +2 more
doaj   +2 more sources

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