Root growth promotion by humic acids from composted and non-composted urban organic wastes

Jindo, Keiji; Martim, Silvia Aparecida; Navarro, Elena Cantero; Pérez‐Alfocea, Francisco; Hernández, Teresa; Izquierdo, Carlos García; Aguiar, Natália Oliveira; Canellas, Luciano Pasqualoto

doi:10.1007/s11104-011-1024-3

Cited by 186 publications

(116 citation statements)

References 51 publications

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“…Similar results were obtained by Chandrasekaran (1992) and Jindo et al, (2012). According to them, the N/C and O/Cratios were considerably high for the humic acid compared to fulvic acid extracted from lignite and sewage sludge.…”

Section: Elemental Composition and Molar Ratios Of Humic Acidsupporting

confidence: 87%

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Characterization, Extraction and Foliar Spray of Fortified Humic Acid on Quality of Capsicum

Avinash¹,

Srinivasamurthy²,

Bhaskar³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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Section: Elemental Composition and Molar Ratios Of Humic Acidsupporting

confidence: 87%

“…Jindo et al, (2012) opined that humic acid extracted from different sources contains all the nutrients and hence can be used as organic manure.…”

Section: Characterization Of Humic Acid Extracted From Poultry Manurementioning

confidence: 99%

Characterization, Extraction and Foliar Spray of Fortified Humic Acid on Quality of Capsicum

Avinash¹,

Srinivasamurthy²,

Bhaskar³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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“…Promotion of root system development is the most commonly reported initial effect of humic acids on plant growth. For example, enhancement of lateral roots or general increased seedling root growth has been reported with tomato (Adani et al 1998;Canellas et al 2011), Arabidopsis Canellas et al 2010), wheat (Tahir et al 2011;Peng et al 2001), maize (Canellas et al 2002 andCanellas et al 2009;Eyheraguibel et al 2008;Jindo et al 2012), pepper (Cimrin et al 2010), and Lantana camara (Costa et al 2008). Shoot growth promotion by humic acids has also been reported with cucumber (Mora et al 2010), tomato (Adani et al 1998;Lulakis and Petsas 1995), wheat (Tahir et al 2011), maize (Eyheraguibel et al 2008), and pepper (Cimrin et al 2010).…”

Section: Specific Effects Of Humic Acids On Plantsmentioning

confidence: 97%

“…The main function of the plasma membrane H + -ATPase is to create a driving force for uptake and efflux of metabolites and ions across the membrane by generating an electrochemical gradient. (Jindo et al 2012) reported that humic acid enhanced root growth of maize seedlings by release of auxin-like compounds that induce H + -ATPase activity in the plasma membrane of root cells, resulting in acidification of the apoplast and leading to loosening of cell walls and elongation of root cells. Increased H + -ATPase activity has been associated with humic acid-induced enhanced root elongation and lateral root formation of maize (Canellas et al 2002;Zandonadi et al 2007;Canellas et al 2009).…”

Section: Plant Physiology and Metabolismmentioning

confidence: 99%

Agricultural uses of plant biostimulants

2014

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Background Plant biostimulants are diverse substances and microorganisms used to enhance plant growth. The global market for biostimulants is projected to increase 12 % per year and reach over $2,200 million by 2018. Despite the growing use of biostimulants in agriculture, many in the scientific community consider biostimulants to be lacking peer-reviewed scientific evaluation. Scope This article describes the emerging definitions of biostimulants and reviews the literature on five categories of biostimulants: i. microbial inoculants, ii. humic acids, iii. fulvic acids, iv. protein hydrolysates and amino acids, and v. seaweed extracts.Conclusions The large number of publications cited for each category of biostimulants demonstrates that there is growing scientific evidence supporting the use of biostimulants as agricultural inputs on diverse plant species. The cited literature also reveals some commonalities in plant responses to different biostimulants, such as increased root growth, enhanced nutrient uptake, and stress tolerance.

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“…The most commonly reported effects of humic acids on plants are related to the root system and involve the formation of lateral roots (Trevisan, Francioso, Quaggiotti, & Nardi, 2010;Baldotto et al, 2011;Jindo et al, 2012;Mora, Baigorri, Bacaicoa, Zamarreño, & García-mina, 2012) and adventitious roots (Baldotto, Baldotto, Soares, Martinez, & Venegas, 2012), root elongation and the formation of root hairs Silva et al, 2011). All these factors increase root mass and surface area, contributing to a greater absorption of water and nutrients (Eyheraguibel, Silvestre, & Morard, 2008).…”

Section: Introductionmentioning

confidence: 99%

<b>Roots of ‘BRS Princesa’ banana fertigated with humic substances and saponin-based plant extracts

et al. 2016

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ABSTRACT. 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 , 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 -1 at 0 -0.40 m depth.

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Root growth promotion by humic acids from composted and non-composted urban organic wastes

Cited by 186 publications

References 51 publications

Characterization, Extraction and Foliar Spray of Fortified Humic Acid on Quality of Capsicum

Characterization, Extraction and Foliar Spray of Fortified Humic Acid on Quality of Capsicum

Agricultural uses of plant biostimulants

<b>Roots of ‘BRS Princesa’ banana fertigated with humic substances and saponin-based plant extracts

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