Buscar
Itens para a visualização no momento 31-40 of 104
Ocorrência de agrotóxicos em águas rurais e bioacumulados em biofilmes epilíticos do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2017-01-17)
In Brazil, agricultural activities have a high potential for contamination of water resources, especially by pesticides use. This potential is highest in river basins where agriculture is developed out of agricultural ...
Composto orgânico: composição, mineralização e produção de cultivar de porta-enxerto de nogueira-pecã (Carya illinoinensis (Wang) K.)
(Universidade Federal de Santa Maria, 2017-02-23)
Fruit and vegetable residue (FVR) can be used for the production of organic compost, which when mineralized may provide nutrients to fruit trees, such as the Pecan (Carya illinoinensis (Wang) K.). The objective of the study ...
Cobre e zinco no solo: crescimento e parâmetros fisiológicos em videiras jovens e aveia preta
(Universidade Federal de Santa Maria, 2017-11-10)
The Campanha Gaúcha is one of the main wine regions of Brazil that suffers from climatic factors favorable to the development of fungal diseases on the leafs of the grapevine (Vitis vinifera). Generally, the control of ...
Aplicação do modelo daycent na simulação dos fluxos de óxido nitroso e dos estoques de carbono no solo com o uso de adubação orgânica em plantio direto
(Universidade Federal de Santa Maria, 2017-07-31)
The application of organic residues from pig and poultry farming in no-till is a common practice in southern Brazil for nutrient cycling. Although this practice has a positive effect on crops productivity and soil C ...
Caracterização de biocarvões derivados de diferentes dejetos animais e resíduos das culturas e seu uso em cultivos de grãos
(Universidade Federal de Santa Maria, 2019-01-25)
In near future the disposal of organic wastes may be a serious problem in Southern Brazil as the region has
plentiful amounts of animal farms and crop production. Preparing biochar can be a strategy to dispose off ...
Uso de bibliotecas espectrais para a predição do carbono orgânico do solo
(Universidade Federal de Santa Maria, 2018-05-21)
This study demonstrates the use of diffuse reflectance spectroscopy (DRS) applied to soil organic carbon (SOC) prediction. The scope of the study is related to the increase in the demand for soil information to support ...
Atributos físicos de um latossolo, sistema radicular e produtividade da soja sob tráfego controlado em plantio direto no sul do Brasil
(Universidade Federal de Santa Maria, 2018-09-24)
Soil compaction occurs due to the disorderly passages of machines verified in traditional traffic. Matching traffic lines, working width and gauge of agricultural machinery allow the adoption of controlled traffic farming. ...
Gradiente vertical de decomposição e dinâmica da água no mulch de cana-de-açúcar afetados pela quantidade de palha
(Universidade Federal de Santa Maria, 2018-07-30)
The partial removal of sugarcane straw (Saccharum spp. L.) from the soil surface after mechanized harvesting for the production of cellulosic ethanol leaves different mulch thicknesses at the soil surface. Thus, the need ...
Condutividade elétrica aparente como ferramenta de espacialização com alta resolução de atributos do solo
(Universidade Federal de Santa Maria, 2019-02-26)
The digital agriculture that drives the productive agriculture system, requires more and more new technologies to collect, store and manipulate data in high quantity and quality of agricultural fields, seeking to understand ...
Mineralogia da fração argila de um argissolo submetido ao sistema de plantio direto por vinte e quatro anos
(Universidade Federal de Santa Maria, 2018-03-27)
In the last decades, it has been more intensive the development and improvement of
techniques which aim to provide the sustainability of productive farming systems, while
increasing their yields. In this scenario, is ...