Residual effect of KCL coated by polymeters incorporated in a corn crop

dc.contributor.authorNogueira, Lais Meneghini
dc.contributor.authorBuzetti, Salatiér
dc.contributor.authorFilho, Marcelo Carvalho Minhoto Teixeira
dc.contributor.authorGalindo, Fernando Shintate
dc.contributor.authorMello, Tayene Franco
dc.contributor.institutionSão Palo State University
dc.date.accessioned2022-04-28T19:29:14Z
dc.date.available2022-04-28T19:29:14Z
dc.date.issued2020-03-01
dc.description.abstractThe use of polymer-coated potassium fertilizers may reduce the leaching of potassium (K) in the soil, increasing the availability of this nutrient to plants for a long period. In this context, the residual effect of doses and sources of potassium chloride (KCl) application on K nutrition, production components and corn grain yield in two sequential crops were investigated in this study. The experiment was conducted in a clayey Oxisol. The experiment was arranged in a randomized complete block design with four replicates in a 4 × 4 factorial scheme: four potassium doses (0, 40, 80 and 120 kg ha–1 of K2O) and four KCl sources [uncoated fertilizer (conventional) and three sources of fertilizer coated with different polymers]. The KCl sources showed the same residual effect for most production components, leaf K content and corn grain yield in both crops. The increase of K fertilizer doses in the previous crop provided residual effect on the second-harvest corn crop, resulting in linear increase in leaf K content, weight of 100 grains and grain yield up to the dose of 77 kg ha–1, whit the use of any source of KCl.en
dc.description.affiliationDepartment of Plant Health Rural Engineering and Soils São Palo State University, Av. Brasil Sul, 830-Centro
dc.format.extent39-46
dc.identifierhttp://dx.doi.org/10.4067/S0718-34292020000100039
dc.identifier.citationIdesia, v. 38, n. 1, p. 39-46, 2020.
dc.identifier.doi10.4067/S0718-34292020000100039
dc.identifier.issn0718-3429
dc.identifier.issn0073-4675
dc.identifier.scopus2-s2.0-85088952980
dc.identifier.urihttp://hdl.handle.net/11449/221527
dc.language.isoeng
dc.relation.ispartofIdesia
dc.sourceScopus
dc.subjectFertilizer with enhanced efficiency
dc.subjectGrain yield
dc.subjectPotassium fertilizer
dc.subjectZea mays L.
dc.titleResidual effect of KCL coated by polymeters incorporated in a corn cropen
dc.titleEfecto residual de la aplicación de KCL recubierto por polimeros en un cultivo de maízes
dc.typeArtigo

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