Crescimento e Produção da Couve-da-Malásia Submetida a Adubação Nitrogenada

Dartora, J.; Echer, M.M.; Guimarães, V.F.; Marini, D.; Pauletti, D.R.

doi:10.18188/1983-1471/sap.v13n2p133-142

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“…Nitrogen (N) is one of the key macronutrients for rapid and vigorous crop growth and is directly related to the growth and yield increase of hardwoods. The use of mineral fertilizers is therefore one of the alternatives employed to make nutrients available in greater quantities and with rapid absorption by the plant, such as urea (3) . Organic fertilizers, be they of vegetable or animal source, have also represented great relevance in the cultivation of horticultural plants, considering that their composition is very varied and acts on the soil improving its physical and chemical characteristics in a gradual way.…”

Section: Introductionmentioning

confidence: 99%

“…Studies report the efficiency of the use of chemical and organic fertilizers in vegetable yields. Dartora et al (3) studying the performance of Malaysian cabbage under N fertilization using urea as a source, stated greater growth and increase in production by the use of N, mainly by the use of the 195 kg ha -1 dose of N. At the time, Peixoto Filho et al (6) verified maximum yield in lettuce, through the use of bovine manure as a source of N.…”

Section: Introductionmentioning

confidence: 99%

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NITROGEN FERTILIZATION IN THE DEVELOPMENT OF Brassica oleracea L.

Santos,

Suassuna,

Sousa

et al. 2023

Rev Cient Fac Educ e Meio Ambient

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Leaf kale is a crop that is widely consumed today due to the new ways of using it in cooking and its nutritional properties. However, the crop has a high requirement for nitrogen fertilization, so the excessive application of mineral fertilizers causes environmental impacts. Considering the importance of kale and its high nutritional requirement, the objective of this work was to evaluate the effect of organomineral fertilization on the development of kale cv. Butter. The treatments were distributed in randomized blocks, in a 2x4 factorial scheme, referring to two sources of nitrogen (urea and cattle manure) and four doses of fertilizers (0, 50, 100 and 150% of the dose of 120 kg ha-1 of nitrogen ) with three replications and during two growing seasons. The sources used were urea and bovine manure. Plant height, number of leaves, leaf area, stem diameter, fresh and dry mass of shoots were analyzed. The organomineral fertilization positively influenced the development of the aerial part. Cultivation season 1 favored the increase of the evaluated variables with a lower percentage of organomineral used. Greater number of leaves was achieved by using 150% (higher dose) of fertilizers in season 2.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%