Top Dressing
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Nitrogen top-dressing fertilization of maize cultivated in single and twin-row systems
ABSTRACT The aim of this study was to evaluate the effects of cropping systems (single and twin-rows) and N fertilizer rates in the second top-dressing on the agronomic performance and relative economic returns of maize. The experiment was conducted in a randomized block design, with subplots and three repetitions. The plots were composed of two cropping sys
Rev. Ceres. Publicado em: 2021-02
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2. Genetic variability and breeding potential of Flintisa Composite of maize in two levels of technology
Abstract The purpose this study was to verify the breeding potential of Flintisa Composite for low (LT) and high (HT) technology of cultivation, and the best selection strategy to be adopted. For this reason half-sib progenies were evaluated in the two technological levels. In HT, it was used basic fertilization, two top dressing and supplementary irrigation
Crop Breed. Appl. Biotechnol.. Publicado em: 01/08/2019
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3. Use efficiency and responsivity to nitrogen of common bean cultivars
RESUMO O feijão é a principal fonte de proteína dos países subdesenvolvidos, e o nitrogênio (N) é um dos nutrientes que mais limita a produtividade dessa cultura. Objetivou-se com esse trabalho, sob condição de campo: a) determinar por meio dos índices de eficiência como o N é utilizado por 16 cultivares de feijoeiro comum; and b) classificar esta
Ciênc. agrotec.. Publicado em: 19/06/2019
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4. Arginine improves nutritional quality of sow milk and piglet performance
ABSTRACT The objective of this study was to evaluate the effect of L-arginine supplementation in lactation diets on the productive and reproductive performance of pluriparous sows and their litters. Seventy-six sows of the same genetic line were assigned to four treatments in a completely randomized design with 19 replicates. The experimental unit was the so
R. Bras. Zootec.. Publicado em: 22/10/2018
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5. Evaluation of Aluminum Chloride As an Effective Short-Term Solution for Reducing Odor - Causing Volatile Fatty Acids in Duck Litter
ABSTRACT This study evaluated the effects of aluminum chloride (AlCl3) on pH and volatile fatty acid levels in duck litter over the course of a three-week experimental period. Ninety one-day-old Pekin ducks (45 males and 45 females) were distributed into three treatments with three replicates each (10 ducks per replicate) using a completely randomized design
Rev. Bras. Cienc. Avic.. Publicado em: 2017-09
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6. Nitrogen fertilization in top dressing for wheat crop in succession to soybean under a no-till system
ABSTRACT Agricultural intensification to improve wheat yield has increased the demand for nitrogen fertilizers. This study aimed to investigate the wheat response in succession to soybean due to application of nitrogen rates and sources in top dressing, as well as to determine the N rates of maximum technical yield (MTY) and maximum economic yield (MEY). A f
Bragantia. Publicado em: 15/05/2017
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7. GESSO AGRÍCOLA E ADUBAÇÃO NITROGENADA NA CULTURA DO MILHO EM SISTEMA PLANTIO DIRETO
A considerably part of the high nitrogen (N) rates applied in corn is not absorbed due root growth restriction by subsoil acidity. Gypsum is able to improve conditions for root growth and lead to greater N uptake efficiency, increasing corn yield. Thus to evaluate the effect of gypsum and N on top dressing on soil chemical attributes, root growth , mineral n
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/11/2012
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8. Active sensor as a tool for nitrogen application in spring wheat / Sensor óptico ativo como ferramenta para aplicação de nitrogênio na cultura do trigo
Nitrogen fertilization in spring wheat in southern Brazil is based on yield potential, soil organic matter and previous crop. These variables are not precise and subjected to errors, resulting on N losses and yield potential reduction. For N fertilization, it is necessary to quantify plant N nutritional status to determine top dressing N rates to be applied.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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9. Produção de matéria seca de capim-marandú (Brachiaria brizantha) em resposta a duas fontes de adubo nitrogenado.
2002
REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA. Publicado em: 2011
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10. Disponibilidade de nitrogênio e sua relação com o afilhamento e o rendimento de grãos de aveia
O nitrogênio tem forte influência no crescimento e desenvolvimento de aveia, nos estádios iniciais. Os afilhos, em especial, a sua produção e sobrevivência, têm relação com o rendimento de grãos e esses aspectos foram avaliados em relação à disponibilidade de N, em cinco experimentos conduzidos na Estação Experimental Agronômica/UFRGS (Eldora
Publicado em: 2010
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11. The real and virtual in tecnical education of agricultural mechanization a case study. / O real e o virtual no ensino técnico de mecanização agrícola um estudo de caso.
The technological evolution of the tractors and agricultural implements establishes a challenge to the formation of the professionals who will make use of this technology. It is imperative that the education of agricultural mechanization in the schools techniques give the opportunity to students in acquiring a lot of information on the tractors and implement
Publicado em: 2008
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12. Carrot (Daucus carota L.) root yield and quality under different top-dressing fertilization / Adubação de cobertura com nitrogênio, potássio e cálcio na producão de cenoura
Carrot is the major vegetable with a commercial root. This study evaluated root yield, number and quality of carrot cultivar Brasília - RL, under different top-dressing fertilizations. The experiment was done on a Red-Yellow Latosol (Latossolo Vermelho- Amarelo), at Fazenda Olhos DÁgua, in São Gotardo - MG, from January to April 2006. The experimental des
Publicado em: 2007