Nitrogen Losses
Mostrando 1-12 de 136 artigos, teses e dissertações.
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1. Nitrogen supply to arugula from pig slurry composts in contrasting soils
RESUMO O estudo foi desenvolvido para avaliar o fornecimento de nitrogênio (N) à rúcula através de compostos obtidos por compostagem automatizada de dejetos líquidos de suínos (DLS). Durante a compostagem, xisto retortado (XR) e dicianodiamida (DCD) foram adicionados aos DLS para mitigar as perdas gasosas de N. O estudo foi realizado em casa de vegeta�
Hortic. Bras.. Publicado em: 09/12/2019
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2. Amino Acid Digestibility of Feed Ingredients in Cecectomized Adult Roosters
ABSTRACT A digestibility assay was conducted in order to determine the digestibility coefficients (DC) of amino acids of feed ingredients in cecectomized adult roosters. In total 48 cecectomized adult roosters were used to assess the coefficient of digestibility of 7 ingredients: corn, soybean meal, soybean concentrate, corn gluten meal, wheat bran, peanut m
Braz. J. Poult. Sci.. Publicado em: 14/11/2019
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3. Lactobacillus plantarum LPBR01 as inoculant in sugarcane silage
ABSTRACT. Sugar cane is highly productive (dry matter.hectare-1), but after ensiling process nutritional quality is affected, thus additives are needed to control or minimize losses. This study aimed to evaluate if Lactobacillus plantarum LPBR01 strain used as silage inoculant for sugar cane can control fermentation losses. Sugar cane samples (72) were divid
Acta Sci., Anim. Sci.. Publicado em: 04/07/2019
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4. Biodegradable oil-based polymeric coatings on urea fertilizer: N release kinetic transformations of urea in soil
ABSTRACT: Polymer coatings are used to control the rate of release of plant available nutrients from fertilizers as well as to reduce nutrient losses such as ammonia (NH3) volatilization. Although the literature presents several examples of materials used to coat urea, little is known about nitrogen (N) release properties such as the mechanism involved and p
Sci. agric. (Piracicaba, Braz.). Publicado em: 01/07/2019
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5. Performance and carcass characteristics of broilers fed whole corn germ
ABSTRACT The objective of this study was to evaluate the effect of including whole corn germ (WCG) on the performance; diet metabolizability; yields of carcass, cuts, and offal; and quality of meat of broilers. A total of 648 chicks were assigned to six treatments in a completely randomized design with six replicates, with 18 birds in each. Treatments consis
R. Bras. Zootec.. Publicado em: 10/06/2019
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6. Ammonia Volatilization from Soil-Applied Organic Fertilizers
ABSTRACT: A reliable quantification of nitrogen (N) losses by ammonia (NH3) volatilization can contribute to identifying optimized strategies of fertilizer management. The objective of this study was to quantify ammonia volatilization from several organic N sources incorporated into or applied onto the soil surface. Two cultivation areas, under snap bean and
Rev. Bras. Ciênc. Solo. Publicado em: 27/05/2019
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7. Thermal, Mechanical and Microstructural Analysis of Metakaolin Based Geopolymers
In the present work, geopolymer matrices were developed by alkali activation of metakaolin, using NaOH and sodium silicate as activators. The samples of metakaolin and matrices were studied by thermal analysis (TGA/DTA) at temperatures between 22°C and 1000°C in a nitrogen atmosphere with a heating rate of 10°C/min. The analyses showed gradual mass losses
Mat. Res.. Publicado em: 20/05/2019
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8. Can an increase in nitrogen rate mitigate damages caused by uneven spatial distribution of maize plants at the sowing row?
ABSTRACT. An uneven distribution of maize plants at the sowing row can decrease grain yield. This work was carried out to evaluate the effect of an increasing nitrogen rate on maize agronomic performance under different variation coefficients of plant spatial distributions at the sowing row. The experiment was conducted in Lages, Santa Catarina State, South
Acta Sci., Agron.. Publicado em: 28/03/2019
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9. Influence of summer crop residues on 15N present in organic matter fractions under two lowland soils
RESUMO: O Rio Grande do Sul possui cerca de 20% da área total de solos de terras baixas, propícias para o cultivo do arroz (Oryza sativa) irrigado por inundação. Buscando mitigar danos ocasionados com o monocultivo de arroz, novas culturas, como o sorgo (Sorghum bicolor) e a soja (Glycine max), têm sido cultivadas nestas áreas. Com diferentes qualidad
Cienc. Rural. Publicado em: 28/03/2019
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10. Fermentative losses and chemical composition of elephant grass silage added with castor bean hull
RESUMO A fermentação e a composição química da silagem de capim-elefante foram avaliadas com 0; 10; 20 e 30% de casca de mamona com base na matéria natural.O delineamento experimental foi inteiramente casualizado com cinco repetições. Os silos foram pesados durante a confecção dos mesmos, sendo novamente pesados antes e após a abertura, depois de
Rev. Ciênc. Agron.. Publicado em: 2019-03
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11. Increased urinary losses in piglets fed diets containing high levels of glycerin
ABSTRACT This study evaluated the nutritional value of glycerin added to diets of weaned piglets and its effects on animal performance and urinary losses. Weaned piglets were individually housed in metabolic cages and fed diets in which a basal diet containing lactose (Gly0) was replaced by 50 (Gly50), 100 (Gly100), or 150 g kg−1 (Gly150) of glycerin; or a
R. Bras. Zootec.. Publicado em: 25/02/2019
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12. Competitive Capacity and Rhizosphere Mineralization of Organic Matter During Weed-Soil Microbiota Interactions
RESUMO: A competição entre plantas daninhas e culturas é um dos principais fatores responsáveis por perdas de produtividade nos campos agrícolas. Esta revisão teve como objetivo apresentar e discutir como a interação entre plantas daninhas e microrganismos pode afetar a capacidade competitiva de plantas daninhas, bem como as propriedades físico-quí
Planta daninha. Publicado em: 18/02/2019