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FAAS determination of metal nutrients in fish feed after ultrasound extraction
(Elsevier B.V., 2009-03-15)
This paper proposes a method to determine calcium, magnesium, manganese and zinc in fish feed samples using ultrasound in the analyte extraction process, and subsequent quantification by flame atomic absorption spectrometry ...
Nutrição e produtividade do crambe em razão da adubação de semeadura na safrinha
(2013-05-01)
The interest in crambe (Crambe abyssinica) cultivation in Brazil is on the rise, whereas information on the nutrient requirements for this crop is scarce. The objective of this work was to evaluate the effect of ...
Exportação de nutrientes e qualidade de cultivares de rosas em campo e em ambiente protegido
(Associação Brasileira de Horticultura, 2008-12-01)
Foram avaliadas a exportação de nutrientes por cultivares de rosas e as características que refletem qualidade em campo e ambiente protegido. O delineamento experimental foi inteiramente casualizado, sendo os tratamentos ...
Nutrient extraction and exportation by castor bean hybrid lyra
(Sociedade Brasileira de Ciência do Solo, 2012-01-01)
Information about nutrient extraction and exportation by crops, as well as the periods of highest nutrient demand is important for an adequate fertilization management. However, there are no studies on the nutrient uptake ...
Nutrient cycling aspects in stands of Pinus-elliottii engelm var elliottii under differents resining intensities .2. nutrients contents in litter
(Inst Tecnologia Parana, 1994-01-01)
Annual and monthly quantities of nutrients wich returned to the soil through litter fall in Pinus elliottii Engelm. var. elliottii stand were estimated durint a two years period, in Experimental Station of Mogi-Guacu, SP. ...
Extração e exportação de nutrientes pelo feijoeiro adubado com nitrogênio, em diferentes tempos de implantação do sistema plantio diretoNutrient extraction and exportation by nitrogen- fertilized common bean grown after different periods of no-tillage system establishment
(Sociedade Brasileira de Ciência do Solo, 2014)
Manejo da água e do nitrogênio em cultivo de capim-elefante
(Ciência e Agrotecnologia, 2019)
Nutrient demand by the carrot crop is influenced by the cultivar
(Revista Brasileira de Ciência do Solo, 2017)