|
|
|
|
| |
|
|
| Pais,Paula Sant'Anna Moreira; Dias Junior,Moacir de Souza; Santos,Gislene Aparecida dos; Dias,Adriana Cristina; Guimarães,Paulo Tácito Gontijo; Alcântara,Elifas Nunes de. |
| O manejo de plantas invasoras é considerado uma das principais atividades que promovem degradação da estrutura do solo em lavouras cafeeiras, devido à compactação do solo causada pelas operações de controle de plantas invasoras. O objetivo deste estudo foi determinar o modelo de capacidade de suporte de carga para o manejo de plantas invasoras sem capina, bem como, utilizando esse modelo, qual manejo de plantas invasoras causa menor ou maior compactação do solo. Este estudo foi realizado em um Latossolo Vermelho-Amarelo (LVA) cultivado com cafeeiros da cutivar Topázio MG 1190 desde 2006, localizado na Fazenda Experimental da EPAMIG, na comunidade Farias, em Lavras-MG. Os manejos de plantas invasoras avaliados foram: na linha de tráfego da entrelinha -... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sustentabilidade; Pressão de pré-consolidação; Modelagem da capacidade de suporte de carga; Coffea arabica L. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000600011 |
| |
|
|
| Pais,Paula Sant'Anna Moreira; Dias Junior,Moacir de Souza; Dias,Adriana Cristina; Iori,Piero; Guimarães,Paulo Tácito Gontijo; Santos,Gislene Aparecida dos. |
| It is essential to know the levels of pressure applied to the soil by different weed managements to adapt the management of coffee plantations in a sustainable manner. The objectives of this study were: a) to generate load-bearing capacity models of a Red-Yellow Latosol (Oxisol) submitted to different weed managements and b) to determine which weed management resulted in higher compression. The study was conducted at the Experimental Farm of EPAMIG, located near the community Farias, in Lavras-MG (latitude 21° 14' 43" S and longitude 44° 59' 59" W and altitude of 919 m). The soil is a Red-Yellow Latosol (LVA) cultivated with coffee plantation using Topazio MG 1190 coffee variety, since 2006. We evaluated five weed managements, three being through... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffee culture; Soil compaction; Sustainability; Preconsolidation stress; Soil structure. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000200005 |
| |
|
|
| Almeida,Cecília Calhau; Fontes,Maurício Paulo Ferreira; Dias,Adriana Cristina; Pereira,Thiago Torres Costa; Ker,João Carlos. |
| ABSTRACT: A set of attributes endows the soils with distinctive characteristics and astute understanding is required in order to formulate suitable strategies for soil management. The aim of this study was to physically, chemically and mineralogically characterize samples of the main soil classes in Minas Gerais, Brazil, determine the point of zero salt effect (PZSE) and the point of zero charge (PZC), and ascertain the correlation between these factors and soil attributes. The soils evaluated presented different textural classes ranging from loamy sand (Entisol) to very clayey (some Oxisols and Ultisols). The soils differed substantially in terms of fertility, presenting a range from dystrophic (low fertility, base saturation < 50 %) to eutrophic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil attributes; Weathered soils; Secondary minerals; Mineralogical composition; Point of zero charge. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000601402 |
| |
|
|
| Dias,Adriana Cristina; Silva,Marx Leandro Naves; Freitas,Diego Antonio França de; Batista,Pedro Velloso Gomes; Curi,Nilton; Carvalho,Gabriel José de. |
| Water erosion is responsible for soil, water, carbon and nutrient losses, turning into the most important type of degradation of Brazilian soils. This study aimed to evaluate the influence of three cover plants under two tillage systems on water erosion control in an Argisol at south of Minas Gerais state, Brazil. The cover plants utilized in the study were pigeon pea, jack bean and millet, under contour seeding and downslope tillage. Experimental plots of 4 x 12 m, with 9% slope, under natural rainfall were used for the quantification of losses of soil, water, nutrients, and organic matter. One experimental plot was kept without plant cover (reference). Higher erosivity was observed in December and January, although a great quantity of erosive rainfall... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil conservation; Tillage systems; Vegetal cover; Erosivity. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000500004 |
| |
|
|
|
