Fertilizer Applications
Mostrando 1-12 de 49 artigos, teses e dissertações.
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1. Production and quality of Sweet Grape tomato in response to foliar calcium fertilization
ABSTRACT In tomato, foliar application of calcium-based nutrient solutions is used to complement soil fertilization. However, knowledge regarding the factors that influence the effectiveness of foliar fertilizer applications remains incomplete. The objective of this study was to evaluate the efficiency foliar fertilization with calcium for improving producti
Revista Ceres. Publicado em: 2022
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2. Production and quality of Sweet Grape tomato in response to foliar fertilization with boron
RESUMO A adubação com boro (B) do tomateiro pode ser feita fornecendo-se o nutriente via solo ou por meio de pulverização de soluções direcionadas às folhas. O uso de distintas fontes de B nas soluções pulverizadas nas folhas pode interferir na eficiência dessa fertilização, pois o desempenho de cada produto pode ser determinado pelas suas propri
Hortic. Bras.. Publicado em: 07/11/2019
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3. Grain yield, efficiency and the allocation of foliar N applied to soybean canopies
ABSTRACT: Soybean [Glycine max (L.) Merr.] grain yield is closely associated with the level of optimal nitrogen (N) supply, especially during the reproductive stages. Foliar fertilization with low rates of N have been considered as a strategy for furnishing additional N and enhancing grain yields. Field studies using 15N tracer were conducted over two growin
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-07
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4. Leaf count overdispersion in coffee seedlings
RESUMO: A cultura do café desempenha papel relevante na agricultura do Brasil, com expressiva participação social e econômica tanto pelos empregos gerados na cadeia produtiva, bem como pela renda obtida pelos produtores e pelas divisas geradas para o país na exportação do grão. No crescimento das plantas de café, as folhas desempenham papel decisivo
Cienc. Rural. Publicado em: 08/04/2019
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5. Timing and Splitting of Nitrogen Side-Dress Fertilization of Early Corn Hybrids for High Grain Yield
ABSTRACT Currently, most nitrogen fertilizer is side-dressed when corn is in the four (V4) to eight (V8) expanded leaf stage. However, recent studies have shown that modern hybrids take up high amounts of nitrogen during grain filling. This indicates that a late nitrogen fertilization, at the time of crop flowering, may be important to optimize corn agronomi
Rev. Bras. Ciênc. Solo. Publicado em: 28/03/2019
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6. Soil physical indicators of management systems in traditional agricultural areas under manure application
ABSTRACT Studies of the successive application of manure as fertilizer and its combined effect with long-term soil management systems are important to the identification of the interdependence of physical attributes. The aim of this study was to evaluate changes in the physical properties of a Rhodic Kandiudox under management systems employing successive ap
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-08
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7. AVALIAÇÃO DA LIBERAÇÃO DE ELEMENTOS TRAÇO EM SOLOS TRATADOS COM XISTO RETORTADO
Soils that had received successive applications of retorted oil shale (ROS) in an experiment under field conditions were used in this study, aiming to evaluate the availability of trace elements. In the batch tests, we observed that toxic elements present in the ROS are not desorbed from the matrix in significant amounts to contaminate soil and groundwater.
Quím. Nova. Publicado em: 2017-06
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8. SOIL MESO- AND MACROFAUNA IN TWO SOYBEAN CROPS AFTER SWINE WASTEWATER APPLICATION
ABSTRACT Hog raising generates a large amount of residues that is commonly discarded into the soil as fertilizer even with environmental risks. In this context, the aim of this study was to assess the application effects of different doses of swine wastewater (SW) associated with mineral fertilization on the abundance and diversity of organisms of soil meso-
Eng. Agríc.. Publicado em: 2017-06
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9. Phosphorus fractions in soil with a long history of organic waste and mineral fertilizer addition
ABSTRACT Applications for long periods of organic animal waste as a source of nutrients to crops can contaminate the soil and the surface and subsurface waters. This study aimed to evaluate how the utilization of organic waste, after successive applications, affects P fractions in the soil and consequently environmental contamination. In an experiment conduc
Bragantia. Publicado em: 30/01/2017
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10. Phosphorus-Zinc Interaction and Iron and Manganese Uptake in the Growth and Nutrition of Phalaenopsis (Orchidaceae)
ABSTRACT: Visual symptoms of Zn deficiency, induced by excessive P applications, have been observed in commercial orchid nurseries. The supply of other metallic micronutrients, such as Fe and Mn, may also be inadequate in the plant due to high application rates of P. The aim of this study was to investigate this interaction in the nutrition of Phalaenopsis p
Rev. Bras. Ciênc. Solo. Publicado em: 15/12/2016
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11. Association of swine wastewater and mineral fertilization on black oat production
ABSTRACT Swine wastewater (SW) has high organic load, becoming an important source of macro and micronutrients to plants, promoting the improvement of soil quality and development in various cultures. However, when done without agronomic and environmental criteria, it can cause soil problems, nutrient leaching, water resource damage and plant toxicity. The o
Eng. Agríc.. Publicado em: 2016-10
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12. Poultry Litter and Pig slurry Applications in an Integrated Crop-Livestock System
ABSTRACT Organic fertilizers derived from poultry litter and pig slurry are alternatives to mineral fertilizers in increasing soil nutrient availability. The aim of this study was to evaluate soil response, through characterization of organic C and available N, P, and K contents, and corn yield response to increasing amounts of poultry litter, pig slurry, an
Rev. Bras. Ciênc. Solo. Publicado em: 19/09/2016