Can co-application of silicate rock powder and humic-like acids increase nutrient uptake and plant growth in weathered tropical soil?

dc.contributorJADER GALBA BUSATO
dc.contributorLUIZ FERNANDO DOS SANTOS
dc.contributorALESSANDRA MONTEIRO DE PAULA
dc.contributorFERNANDO FABRIZ SODRÉ
dc.contributorLEONARDO BARROS DOBBSS
dc.contributorEDER DE SOUZA MARTINS, CPAC
dc.contributorKEIJI JINDO.
dc.creatorBUSATO, J. G.
dc.creatorSANTOS, L. F. dos
dc.creatorPAULA, A. M. de
dc.creatorSODRÉ, F. F.
dc.creatorDOBBSS, L. B.
dc.creatorMARTINS, E. de S.
dc.creatorJINDO, K.
dc.date2022-12-08T14:01:20Z
dc.date2022-12-08T14:01:20Z
dc.date2022-12-08
dc.date2022
dc.date.accessioned2023-09-05T02:01:00Z
dc.date.available2023-09-05T02:01:00Z
dc.identifierActa Agriculturae Scandinavica, Section B ? Soil & Plant Science, v. 72, n. 1, 2022.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1149376
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8633822
dc.descriptionSilicate rock powder (SRP) restores the fertility of weathered soils. However, its slow nutrientrelease is a disadvantage for short-duration crops. Humic-like acids (HLAs) are plantbiostimulants that enhance root development and nutrient uptake. This work evaluates theeffects of the co-application of HLA extracted from a vermicompost and SRP on the nutrientuptake and growth of maize cultivated in weathered soil in Brazil. The chemical composition ofHLA was assessed using Fourier-transform infrared spectroscopy and13Carbon-nuclear magneticresonance, revealing an overall characteristic of hydrophobicity. A preliminary trial with differentHLA concentrations (0, 20, 40, 80, and 160 mg L−1) revealed that 40 mg L−1HLA resulted in thehighest increase in the root area, dry root weight, H+efflux, and the number of lateral roots,compared with other concentrations. The main experiment using soil treated with SRP atdifferent rates (0, 600, 1200, 1800, and 2400 kg ha−1) showed that the co-application of SRP andHLA caused a significant difference in the root and total plant weights, compared with the soleSRP application. Furthermore, it increased the nutrient content of the plants. These effects aremainly because of increased proton pump activity and the hydrophobicity of HLA
dc.formatp. 761-744
dc.languageIngles
dc.languageen
dc.rightsopenAccess
dc.subjectPó de rocha
dc.subjectÁcido húmico
dc.subjectBioestimulante
dc.subjectNutriente
dc.subjectPlanta
dc.subjectSolo Tropical
dc.subjectFósforo
dc.subjectLatossolo
dc.titleCan co-application of silicate rock powder and humic-like acids increase nutrient uptake and plant growth in weathered tropical soil?
dc.typeArtigo de periódico


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