Caracterização imunoistoquímica dos miofibroblastos endometriais e da expressão de MMP-2 nas endometrites crônicas das éguas

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Calagem na superfície para a cultura da soja, em semeadura direta sobre Brachiaria brizantha

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Níveis de adubação potássica na cultura da figueira

Pós-graduação em Agronomia (Horticultura) - FCA

Nutrição e crescimento inicial de cana-de-açúcar fertilizada com concentrado de vinhaça biodigerida em condições de vaso

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Resposta da segunda soqueira da cana-de-açúcar à aplicação de nitrogênio na presença e ausência de silício

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

Esterco bovino para o desenvolvimento inicial de plantas provenientes de quatro matrizes de Corymbia citriodora

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Silicon in plant disease control

All essential nutrients can affect the incidence and severity of plant diseases. Although silicon (Si) is not considered as an essential nutrient for plants, it stands out for its potential to decrease disease intensity in many crops. The mechanism of Si action in plant resistance is still unclear. Si deposition in plant cell walls raised the hypothesis of a possible physical barrier to pathogen penetration. However, the increased activity of phenolic compounds, polyphenol oxidases and peroxidases in plants treated with Si demonstrates the involvement of this element in the induction of plant defense responses. The studies examined in this review address the role of Si in disease control and the possible mechanisms involved in the mode of Si action in disease resistance in plants.

Eficiência agronômica da ureia estabilizada com inibidores de urease e nitrificação na cultura do milho

Nitrogen (N) is the most required nutrient for corn plants and, in order to supply this demand in highly productive crops, mineral fertilizers are used, especially urea. The disadvantage of urea is the loss of N-NH3 to atmosphere. To reverse this situation, some technologies have been developed, such as nitrification and urease inhibitors, which are used as additives to urea. This work aimed at evaluating the agronomic efficiency of urea stabilized with urease and nitrification inhibitors applied to cover the 2013/2014 corn crop. We evaluated 11 nitrogen fertilizer applied in coverage: urea + PA (41.6% N, 3% Cu); urea + PA (41.6% N, 1.5% Cu); urea + PA (41.6% N, 3% Zn); urea + PA (41.6% N, 1.5% Zn); urea + PA (41.6% N, 0.34% Cu, 0.94% B); urea + PA (41.6% N, 0.25% Cu, 0.68% B); urea + PA (41.6% N); urea (44.3% N, 0.15% Cu, 0.4% B); urea (43% N, 0.1% Cu, 0.3% B, 0.05% Mo); pearled urea (46% N); urea + 0,8% DMPP (45% N) and the control, which did not receive nitrogen topdressing. The evaluations were: Nitrogen losses through volatilization, content and accumulation of N, boron (B), copper (Cu) and zinc (Zn) to the dry matter of aerial parts, grains, and in straw and grain productivity. Fertilizers stabilized with urease and nitrification inhibitors did not reduce the volatilization of ammonia volatilization, when compared to pearled urea. Urea with 0.8% of DMPP nitrification inhibitor (3,4-dimethylpyrazole phosphate) provided higher loss by volatilization, lower productivity and agronomic efficiency compared to pearled urea. The coating of urea with Cu, B and Zn did not increase the accumulation of these nutrients in grains and MSPA plants. The use of fertilizers stabilized and coated with micronutrients did not increase the productivity and agronomic efficiency compared to conventional urea.

Caracterização, gênese e uso de latossolos sob cerrado no município de Rio Paranaíba - MG

The main objective of this research was to study the morphological, physical, chemical, mineralogical and geomorphic characteristics of two soil types in the Rio Paranaíba área of Minas Gerais. Using descriptions based on current methods, the soil profile study was carried out in two trenches both two meters in depth. The landscape of this region consists of an extensive, flat plain where the Red Yellow Latosol is found. In addition, the Dusky Red Latosol is distributed on slopes between the basin of Parana-São Francisco and the plateau. Chemical analysis show that the Red Yellow Latosol presents an extremely low natural fertility and the high amounts of gibbsite indicates a highly advanced degree of weathering for this soil. Mecanization is difficult in the Dusky Red Latosol due to the steep relief. Thus, Dusky Red Latosol could be put to better use as land for pastures and perennial crops taking the necessary care to prevent erosion. The soils were classified respectively as Typic Acrustox and Acrustox according to the Soil Survey Staff (67) and were categorized as Dystrophic Red Yellow Latosol of a clayish texture, flat relief, with clayish substratum sediments and Dystrophic Dusky Red Latosol, of clayish texture, high relief, undulant substratum, with and volcanic tuffs in agreement with the criteria proposed by Bennema and Camargo (11) for the Brasilian Classification.

Caracterização de lodo gerado em estações de tratamento de água: perspectivas de aplicação agrícola

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Tempo de decomposição de palha e contribuição na nutrição da cana-de- açúcar em função da aplicação de vinhaça e gesso

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Fontes e doses de nitrogênio antes e após a indução floral em abacaxi cv. Smooth Cayenne, na região noroeste do estado de São Paulo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Interrelações da produtividade de cana-de-açúcar com atributos químicos de um argissolo vermelho eutrófico paulista

Pós-graduação em Agronomia - FEIS

Temperatura e atributos físico-químicos de um latossolo em recuperação com adubação verde, gramínea e lodo de esgoto, cultivado com Gonçalo-Alves

Pós-graduação em Agronomia - FEIS

Plantio direto de soja sobre Brachiaria brizantha no sistema integração agricultura-pecuária

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)