Roots of BRS Princesa banana fertigated with humic substances and saponin-based plant extracts

This study aimed to evaluate the effects of fertigation with humic substances, with and without the addition of plant extracts, on the root system of the 'BRS Princesa' banana cultivar. The banana crop was cultivated at a spacing of 2.0 x 2.5 m and fertigated using a drip system in a dystrocohesive Yellow Latosol. The experimental design was randomized blocks, in a split-split-plot scheme with five replicates, for the following factors: humic substance doses and presence of a plant extract formulation. The treatments consisted of five doses of humic substances, based on a reference dose of 14.14 L ha-1 cycle-1, in the presence and absence of plant extract. The variable root length (cm) was subjected to variance analyses to evaluate the effect of the humic substances, either isolated or in interaction with plant extract and soil depth. The use of the plant extract increased the effect of the humic substance on root length but overshadowed its effect for the different doses of humic substance. Root length was not sensitive to increasing humic substance dose with plant extract for doses of up to 42.42 L ha-1at 0 - 0.40 m depth.

Bibliographic Details

Main Authors:	COELHO, E. F., MELO, D. M. de, PEREIRA, B. L. da S., SANTOS, D. B., ROSA, R. C. C.
Other Authors:	EUGENIO FERREIRA COELHO, CNPMF; DIEGO MAGALHÃES DE MELO, UNIVERSIDADE FEDERAL DO RENCONCAVO BAHIANO; BRUNO LAÉCIO DA SILVA PEREIRA, UNIVERSIDADE FEDERAL DO RENCONCAVO BAHIANO; DJALMA BARBOSA DOS SANTOS, UNIVERSIDADE FEDERAL DO RENCONCAVO BAHIANO; RAUL CASTRO CARRIELLO ROSA, CNPAB.
Format:	Separatas biblioteca
Language:	pt_BR por
Published:	2016-10-24
Subjects:	Comprimento de raiz, Ácido húmico, Ácido fúlvico, Fulvic acid, Humic acid, Musa spp, Root length,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1055267 http://dx.doi.org/10.4025/actasciagron.v38i4.30790
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