Pasture Management
Mostrando 25-36 de 200 artigos, teses e dissertações.
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25. Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern Amazon
ABSTRACT: Soil organic matter (SOM), which influences chemical, physical and biological soil attributes, is the main form of C found in the soil which can also be used as a soil sustainability index. The aim of this study was to use the quantity and quality of SOM as an indicator to determine the sustainability of different land uses (native vegetation, seco
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-05
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26. Integrating the pastoral component in agricultural systems
ABSTRACT This paper aims to discuss the impact of the introduction of pastures and grazing animals in agricultural systems. For the purposes of this manuscript, we focus on within-farm integrated crop-livestock systems (ICLS), typical of Southern Brazil. These ICLS are designed to create and enhance the synergisms and emergent properties have arisen from agr
R. Bras. Zootec.. Publicado em: 26/03/2018
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27. Fatty acid profile in vertical strata of elephant grass subjected to intermittent stocking
ABSTRACT The milk and meat from animals with a pasture-based diet have higher proportions of CLA and C18:3 and lower omega-6:omega-3 ratios than products from animals with diets based on corn silage and concentrate. However, most of the published studies have evaluated fatty acid profiles in temperate climate grasses and the literature with tropical grasses
An. Acad. Bras. Ciênc.. Publicado em: 14/08/2017
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28. Longitudinal model for categorical data applied in an agriculture experiment about elephant grass
ABSTRACT Experiments where the response is a categorical variable are usually carried out in many fields such as agriculture. In addition, in some situations this response has three or more levels without an order between them characterizing a multinomial (nominal) response. Statistical models for scenarios where the observations of a nominal response can be
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-08
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29. Carbon losses and soil property changes in ferralic Nitisols from Cuba under different coverages
ABSTRACT The transformation of primary forestlands into lands under cultivation exerts an impact on the physical and chemical properties of the soils, leading to loss of carbon from the soil. The aims of this study were (1) to estimate the impact of different land use on organic carbon stock (OC-stock) and (2) to determine the clay percentage, the dispersion
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-08
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30. Physical Properties of Soil Structures Identified by the Profil Cultural under Two Soil Management Systems
ABSTRACT Soil structure plays an important role in water retention, infiltration capacity, porosity, and penetration resistance. The aim of this study was to evaluate the unsaturated hydraulic conductivity and physical properties of Oxisol soils (bulk density and macro-, micro-, and total porosity) in the structures identified using the profil cultural metho
Rev. Bras. Ciênc. Solo. Publicado em: 31/07/2017
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31. Biological Soil Properties in Integrated Crop-Livestock-Forest Systems
ABSTRACT Currently, agricultural productivity and sustainable development are the desired bases for the creation of production systems. Farming for greater production and the efficient use of soil resources are at the core of modern systems. However, the way in which agricultural management and practices can change soil quality has become increasingly import
Rev. Bras. Ciênc. Solo. Publicado em: 22/06/2017
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32. Calcium and Magnesium Released from Residues in an Integrated Crop-Livestock System under Different Grazing Intensities
ABSTRACT Under integrated crop-livestock production systems (ICLS), plant and animal residues are important nutrient stocks for plant growth. Grazing management, by affecting the numbers of both plants and animals and the quality of residues, will influence nutrient release rates. The objective of this study was to evaluate the impact of grazing intensity on
Rev. Bras. Ciênc. Solo. Publicado em: 27/04/2017
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33. Soil Organic Matter Quality in Jatropha spp. Plantations in Different Edaphoclimatic Conditions
ABSTRACT The substitution of native vegetation by agricultural ecosystems can change the quantity and quality of soil organic matter (SOM), and the intensity of these changes depends on the soil type, climate, and land use. The objective of this study was to evaluate the quality of organic matter in chronosequences of Jatropha cultivation in contrasting soil
Rev. Bras. Ciênc. Solo. Publicado em: 27/03/2017
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34. Dung Beetles Associated with Agroecosystems of Southern Brazil: Relationship with Soil Properties
ABSTRACT Knowing the biodiversity of dung beetles in agricultural and livestock environments is the basis for understanding the contribution that these organisms make in nutrient cycling and ecosystem functions. The aim of the present study was to investigate the structure of copronecrophagous dung beetle communities inhabiting the main agroecosystems in sou
Rev. Bras. Ciênc. Solo. Publicado em: 27/03/2017
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35. Ethnopedology of a Quilombola Community in Minas Gerais: Soils, Landscape, and Land Evaluation
ABSTRACT Quilombolas are Afro-brazilian rural peasants who descended from escaped slaves who tried to carve out territories of autonomy (called Quilombos) by collective organization and resistance. Despite many anthropological and ethnopedological studies, little research has been carried out to identify the agricultural practices and the knowledge of people
Rev. Bras. Ciênc. Solo. Publicado em: 06/02/2017
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36. DETERMINATION OF XARAÉS GRASS QUALITY SUBMITTED TO IRRIGATION WATER LEVELS AND NITROGEN AND POTASSIUM DOSES
ABSTRACT In the correct pasture management, nutritional factors such as nitrogen and potassium fertilization play an important role in the forage production and quality. The aim was to evaluate the effects of the application of water levels, nitrogen and potassium doses in the Xaraés grass in the south of the State of Tocantins. For this, Xaraés grass was
Eng. Agríc.. Publicado em: 2017-02