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Itens para a visualização no momento 21-30 of 30
Adubação nitrogenada à taxa variada com o N-Sensor nas culturas do milho e trigo
(Universidade Federal de Santa Maria, 2010-03-03)
Most tropical and subtropical soils present insufficient availability of nitrogen (N) to meet the demand of maize and wheat in order to obtain high yields. The N in plants can be evaluated through the use of sensors of ...
Balanço e evolução temporal de fósforo e potássio em três solos sob sistema plantio direto no Paraguai
(Universidade Federal de Santa Maria, 2010-02-26)
Soybean, corn and wheat crops occupy actually 70% of the agricultural areas of Paraguay, with increasing fertilization consumption, suggesting the necessity of an
efficient use of this input. The objectives of this work ...
Qualidade física de um latossolo sob plantio direto submetido à escarificação de sítio específico e o rendimento da soja
(Universidade Federal de Santa Maria, 2010-02-26)
The soil compaction has been noted under no-till especially in clay soil texture. One important characteristic of soil compaction in cropland is non-uniform occurrence. With precision farming (PF) is possible determine ...
Sistemas de cultivos de milho consorciado ou não com plantas de cobertura de solo: Aspectos produtivos, socioeconomicos e de qualidade
(Universidade Federal de Santa Maria, 2010-02-10)
The availability of small areas for cultivation together with the technical and economic deficiencies often aggravated by socio-cultural aspects, creating the small farms, a scenario likely to farming practices with a high ...
Uso da terrra e caracterização hidropedológica na região de vila Kramer, São Francisco de Assis - RS
(Universidade Federal de Santa Maria, 2010-08-31)
The knowledge about the physical-natural environment to be explored is extremely important for the correct development of human activities. The planning of land use
and occupation minimizes the environmental impact, ...
Óleo essencial de eucalipto como bioestimulador da micorrização e do estabelecimento de mudas de eucalipto e sibipiruna em solo contaminado com cobre
(Universidade Federal de Santa Maria, 2010-10-08)
Ectomycorrhizal fungi (fECM) combined with the plant root system improve the absorption of water and nutrients, providing great plant growth, especially in environments with nutritional deficiency or degraded. Due to the ...
Pedofunções para retenção de água de solos do Rio grande do Sul irrigados por aspersão
(Universidade Federal de Santa Maria, 2010-02-26)
The determination of some soil physical characteristics, especially those related
to water retention is difficult, requiring careful soil sampling, laboratories with
sophisticated and high-cost equipment, highly trained ...
Perdas de solo e água por erosão hídrica em sistemas de culturas oleaginosas
(Universidade Federal de Santa Maria, 2010-03-30)
The sustainability of vegetable oils production is in the dependence of the agricultural practices, being the erosion the most preoccupying form of soil degradation. In this way, was carried out a study in the UFSM campus, ...
Dicianodiamida (DCD) como inibidor da nitrificação do nitrogênio amoniacal de dejetos líquidos de suínos no solo
(Universidade Federal de Santa Maria, 2010-06-30)
Inhibition of nitrification of ammonia nitrogen (N) from pig slurry in soil after application can mitigate N losses by denitrification and leaching of nitrate (NO3-), with
economic and environmental benefits. However, ...
Produção de grãos, matéria seca e acúmulo de nutrientes em culturas submetidas à adubação orgânica e mineral
(Universidade Federal de Santa Maria, 2010-04-29)
In Brazil, one of the main activities on small farms is the creation of small animals. The waste produced in this activity can be used as an alternative fertilizer because it contains a number of chemicals readily available ...