The application of fertilizers as a topdressing in maize raises serious concerns because too much fertilizer is retained in the upper leaves, causing burning to the tissues. In this study, the use of a controlled-release and a stabilized fertilizer (with 3, 4-dimethylpyrazole phosphate) was compared with the application of a conventional fertilizer split into two equivalent applications in a forage maize-oats c...
Made available in DSpace on 2022-04-28T19:06:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-01-01; The aim of this study was to evaluate the behavior of chemical properties and crop yields during five years after liming, in a consolidated no-tillage system area and indicate a base saturation index to serve as a criterion for recommendation. The experiment was conducted in a randomized complete block ...
Farmers are increasing the use of fertilizers in chestnut, the only cash crop produced in the mountainous areas of northeastern Portugal. This calls for more studies to guide them towards a more ecological intensification. The effects of three controlled-release fertilizers, two that release nutrients over three months (BoskGrow 20:05:20_3m, Exactyon 18:05:13_3m) and one over six months (Exactyon 18:05:12_6m), ...
Biofertilizers of mycorrhizal fungi have been mainly tested in nutrient-limited soils or harsh environmental conditions, which have helped to highlight their beneficial role in plant growth. However, their benefits in stress-free growing conditions have not yet been properly proven. In this work, a commercial mycorrhizal fungi, composed of 18 ecto and endomycorrhizal fungi, was tested in a pot experiment with y...
Two soil amendments, biochar and zeolites, were evaluated in their potential for increasing crop productivity and agro-system sustainability. The effect of biochar and zeolites, in combination with four nitrogen (N) rates [0 (N0), 50 (N50), 100 (N100), and 200 (N200) kg ha−1], on crop yield, N use efficiency, and soil properties was evaluated in a cropping system of irrigated forage maize (Zea mays L.) grown in...
A boa gestão do nitrogênio (N) na agricultura é de extrema importância para minimizar impactos ambientais. Neste trabalho objetivou-se avaliar a influência do N residual da cultura do milho na aveia cultivada em sequência, e a capacidade da aveia em capturar N residual do solo. O experimento foi instalado em Bragança, NE Portugal, nos anos 2018 e 2019. O milho foi conduzido em delineamento completamente casuali...
O nitrogênio (N) aplicado nas lavouras é causa de contaminação das águas por nitratos. Neste trabalho objetivou-se avaliar a influência de condicionadores de solo aplicados no milho na redução de N residual após a colheita e a capacidade da aveia cultivada em sequência em capturar N residual do solo. O experimento foi instalado em Bragança, NE Portugal, nos anos 2018 e 2019. O milho foi conduzido em um delineam...
In the context of climate change, chestnut fertilization is receiving great attention in the Mediterranean basin, due to the increase in the unpredictability of the pluviometric regime which makes it difficult to determine the optimal timing of fertilizer applications. The purpose of this work was to assess the suitability of fertilizers with mechanisms for nutrient protection on the increase of tree nutritiona...
TOFFOLLI, Letícia Cristina Bertusso; ASSMANN, Tangriani Simioni; ASSMANN ,Alceu Luiz; et al. Formas de aplicação e doses de calcário para Alfafa cultivada em sistema plantio direto consolidado. Application limestone forms and doses for Alfalfa in no-tillage system . Revista Ciência Agronômica. Fortaleza, v. 45, n. 5 p. 906-913, 2014. Disponível em: <http://www.periodicos.ufc.br/index.php/rca/article/view/1061/1...