Npk Fertilization
Mostrando 1-12 de 45 artigos, teses e dissertações.
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1. Gas exchange and growth of sunflower subjected to saline stress and mineral and organic fertilization
RESUMO A utilização frequente de água salina para irrigação de culturas, sob condições climáticas da região semiárida, pode afetar diretamente os processos fisiológicos das plantas. Entretanto, o manejo nutricional das plantas cultivadas pode influenciar nas respostas ao ambiente salino. Com base nisso, o objetivo do presente estudo foi avaliar a
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2022
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2. Crescimento e teor de cromo em mamoneira cultivada em solo receptor de resíduos de curtume e carboníferos
RESUMO A produção de resíduos tem aumentado em proporção direta com a industrialização dos países. Sendo assim, a disposição adequada desses resíduos é uma questão largamente discutida entre os órgãos ambientais. Por isso, o objetivo deste trabalho foi estudar o efeito residual de adições sucessivas de resíduos de curtume e da mineração d
Eng. Sanit. Ambient.. Publicado em: 20/12/2019
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3. Chlorophyll content in beet cv. Early Wonder under nitrogen fertilization
ABSTRACT This study aimed to evaluate the effects of doses of nitrogen fertilizer in association with types of basal dressing fertilizers on the physiological characteristics of beet cultivar Early Wonder in a protected environment. The experiment was conducted in safe environment at the Federal University of Campina Grande, using a randomized block design
Rev. Ceres. Publicado em: 02/12/2019
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4. Polímero hidrorretentor e fertilização mineral na implantação de híbrido de Eucalyptus urophylla x Eucalyptus grandis
Resumo O uso de polímeros hidrorretentores surge como uma alternativa para disponibilizar água de forma adequada na fase de implantação de povoamentos florestais, além de reter nutrientes necessários para o estabelecimento e desenvolvimento destes. No presente trabalho, objetivou-se avaliar o efeito do polímero hidrorretentor e a influência de difere
Ciênc. Florest.. Publicado em: 02/12/2019
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5. Growth and nutrients content of heliconia under mineral fertilization
Resumo Heliconias têm grande importância comercial devido à durabilidade de suas inflorescências, tamanhos, formas e cores brilhantes. Em relação à sua produção, a nutrição mineral da cultura é um dos aspectos mais relevantes para a obtenção de hastes florais de qualidade. O objetivo foi determinar a influência do N-P-K no crescimento e estado
Ornam. Hortic.. Publicado em: 28/10/2019
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6. Export of N, P and K in barley subjected to fertilizer doses formulated with and without humic substance at sowing
ABSTRACT. The aim of this study was to evaluate the effect of nitrogen fertilization with and without humic acid in barley cultivars on the export of nitrogen, phosphorus and potassium grains. The experiment was performed in the city of Guarapuava, PR, during the 2015 and 2016 growing seasons. The experimental design was in RCB in factorial 5 x 2, with the f
Acta Sci., Agron.. Publicado em: 13/06/2019
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7. NITROGENATED FERTILIZATION FAVORS VEGETATIVE RESCUE AND PROPAGATION OF Ilex paraguariensis
ABSTRACT The vegetative growth of plants depends on the nutritional conditions of the soil, mainly in relation to the N element. This element favours the formation of cytokines and auxins, essential hormones for sprouting and rooting, respectively. The objective of this study was to evaluate the influence of nitrogen fertilization of Ilex paraguariensis moth
CERNE. Publicado em: 20/05/2019
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8. Ash content, carbon and C/N ratio in paricá in function of NPK fertilization
ABSTRACT Fertilization in areas of forest plantations is needed to supplement plants´ nutritional needs until harvest. An experiment was performed to check the influence of fertilization on levels of ash, carbon and C/N relation in Schizolobium amazonicum. Soil liming was performed and fertilization occurred after 15 days of incubation. S. amazonicum seedli
An. Acad. Bras. Ciênc.. Publicado em: 05/02/2018
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9. MECHANIZED AND INDIVIDUALIZED APPLICATION OF N-P-K IN COMBINED OPERATIONS IN SUGARCANE
ABSTRACT: A new concept of fertilizer machine is under development and shows as differential individually fertilizer application, that is sources of N, P and K are applied separately for the purpose of improving the distribution efficiency of the quantities applied. The aim was to compare the quality of the individualized mechanized distribution of N, P and
Eng. Agríc.. Publicado em: 2017-08
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10. Effectiveness of Current Fertilizer Recommendations for Irrigated Rice in Integrated Crop-Livestock Systems
ABSTRACT: Irrigated rice in the state of Rio Grande do Sul (Brazil) has shown significant growth in yield in recent years due to improved management practices, especially in regard to fertilizer use. However, the response curves that led to the current fertilizer recommendations do not consider integrated systems prevailing in rice-producing regions that hav
Rev. Bras. Ciênc. Solo. Publicado em: 19/12/2016
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11. Fuzzy Classification in the Determination of Input Application Zones
ABSTRACT Correctly interpreting soil fertility and its spatial distribution within an area helps to lessen losses and environmental effects associated with agriculture, to optimize fertilization and liming practices. This study is aimed at using concepts and methods from spatial and temporal analyses to soil fertility and to develop a fuzzy classification me
Rev. Bras. Ciênc. Solo. Publicado em: 28/07/2016
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12. Effect of biochar, chicken litter and NPK on soil fertility, growth and nutrition of sweet orange Pêra-Rio in with Antropic Soil (Terra Mulata) in the Amazonas / Efeito do uso de biocarvão, cama de frango e NPK na fertilidade do solo, no crescimento e na nutrição da laranjeira "Pêra-Rio" em Latossolo Amarelo com a Antrópico (Terra Mulata) no Amazonas
The Amazonian soil presents mostly low natural fertility, however, patches of dark colored soil have been discovered, and are characterized by intense high fertility called Anthropogenic Dark Earths. Adjacent to these soils, Terra Mulata calls attention to the less dark coloration, lower fertility and higher extensions. The orange Pêra-Rio is an important c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2012