Influence of Foliar Fertilization with Amino Acids and Humic Acids on Productivity and Quality of Asparagus

Tejada, Manuel; González, José

doi:10.1080/01448765.2003.9755270

Cited by 28 publications

(8 citation statements)

References 23 publications

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“…The significant increased N content in the leaf petiole as a consequence of HAs application was in agreement with data reported in cucumber (Rauthan and Schnitzer, 1981), wheat (Malik and Azam, 1985), olive (Tattini et al, 1990), tomato (David et al, 1994, asparagus (Tejada and Gonzalez, 2003) and rice (Tejada and Gonzalez, 2004) using HS or HAs of different origins and various concentrations. Probably, foliar applications of HAs may have influenced nutrient availability (i.e., N supplement) by acting as complementary organic fertilizers.…”

Section: Vegetative Growthsupporting

confidence: 91%

Influence of foliar applications of humic acids on yield and fruit quality of table grape cv. Italia

Ferrara

Brunetti

2008

OENO One

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Aims: The responses in growth, yield and quality components of a Vitis vinifera cultivar (Italia) to the foliar applications of two humic acids extracted from a soil and a compost have been studied.Methods and results: The foliar applications of the two humic acids were performed in two years and six different dates of the season. Both humic acids were tested at two different concentrations, 5 and 20 mg/L. Throughout the trial, different analyses were performed (SPAD, chlorophyll content, titrable acidity, soluble sugars, pH, yield). Grapevines treated with the two humic acids exhibited both significant increases in total chlorophyll content and reductions of the chlorophyll a/b ratio. Application of humic acids significantly decreased titrable acidity and increased °Brix/acidity ratio. Generally, the treatments with humic acids significantly increased berry size, and as a consequence the yield.Conclusions: Humic acids exerted some positive effects (chlorophyll content, acidity, berry size) in Italia table grape. Better results were obtained when the compost humic acid was sprayed.Significance and impact of study: This study gives new information about the positive effects of foliar application of humic acids, active components of soil and compost organic matter, on yield and fruit quality of table grape. In organic viticulture humic acids may find a valid and appropriate application for a technical and economical use.

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Section: Vegetative Growthsupporting

confidence: 91%

Influence of foliar applications of humic acids on yield and fruit quality of table grape cv. Italia

Ferrara

Brunetti

2008

OENO One

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“…In practice, liquid compost extracts, fully enriched with HS, represent a costeffective tool to conduct foliar application (Zandonadi et al, 2013;Berbara and García, 2014). A wide range of plants have been tested with HS application under open-field conditions, such as garlic (Balmori et al, 2019), common beans (Kaya et al, 2005;Souri and Aslani, 2018), wheat (Zhang et al, 2016;Ahmad et al, 2018;Bezuglova et al, 2019), fenugreek (Ibrahim, 2019), tomato (Olivares et al, 2017), asparagus (Tejada and Gonzalez, 2003), maize (Canellas et al, 2015a) and citrus tree (Hameed et al, 2018). Foliar application is frequently reported in calcareous soil conditions where nutrient uptake, especially iron, is limited due to precipitation (Çelik et al, 2011;Souri and Aslani, 2018;Bezuglova et al, 2019).…”

Section: Foliar Applicationmentioning

confidence: 99%

From Lab to Field: Role of Humic Substances Under Open-Field and Greenhouse Conditions as Biostimulant and Biocontrol Agent

et al. 2020

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The demand for biostimulants has been growing at an annual rate of 10 and 12.4% in Europe and Northern America, respectively. The beneficial effects of humic substances (HS) as biostimulants of plant growth have been well-known since the 1980s, and they can be supportive to a circular economy if they are extracted from different renewable resources of organic matter including harvest residues, wastewater, sewage sludge, and manure. This paper presents an overview of the scientific outputs on application methods of HS in different conditions. Firstly, the functionality of HS in the primary and secondary metabolism under stressed and non-stressed cropping conditions is discussed along with crop protection against pathogens. Secondly, the advantages and limitations of five different types of HS application under open-fields and greenhouse conditions are described. Key factors, such as the chemical structure of HS, application method, optimal rate, and field circumstances, play a crucial role in enhancing plant growth by HS treatment as a biostimulant. If we can get a better grip on these factors, HS has the potential to become a part of circular agriculture.

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“…The agricultural practice that is successfully employed to eliminate the negative effects of stressful situation on crop productivity is the application of biologically active preparations (BAPs) (Calvo et al 2014). Is well documented the positive effect of foliar application of BAPs with amino acids as an active substance on yield of many crops (Tejada & Gonzales 2003;Jablonskyte-Rašče et al 2013), including sunflower (Rauf 2008;Mátyás et al 2014). It has been observed that application of BAPs stimulate photosynthetic performance and anti-oxidative defence metabolism, in addition to water, light and mineral use efficiency, as well uptake of mineral nutrition.…”

Section: Original Papermentioning

confidence: 99%

Analysis of relations between crop temperature indices and yield of different sunflower hybrids foliar treated by biopreparations

Kovár¹,

Černý²,

Ernst³

2016

Agriculture (Polnohospodárstvo)

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The application of biological active preparations (BAPs) and remote-sensing control in the management of agronomic intervention are an important part of successful crop cultivation. The effects of foliar application of two BAPs (containing amino acids or Abiestins®) on yield and yield-forming, as well eco-physiological traits calculated from infrared thermographs data (crop water stress index, CWSI and index of stomatal conductance, Ig) of three hybrids of sunflower were studied in field poly-factorial experiments, realised during two years (2012 and 2013). The results showed that the application of selected BAPs has contributed to an increase of the sunflower yield, in particular through an increase in the weight of thousand seeds (rp = 0.761, P < 0.001). Similarly, oil content in achenes was significantly higher in treatments with BAPs, mainly with preparation containing free amino acids. The study describes the quantitative relationship between yield and quality of sunflower production (rp = −0.41, P < 0.01). Selected hybrids of sunflower in two growth stages showed the significant differences in CWSI and Ig (both at P < 0.01), respectively. An analysis of negative linear relation between the yield of achenes and CWSI (rp = −0.654, P < 0.001) confirmed that higher value of plant stress resulted in a smaller yield and vice-versa. The opposite trend was observed between yield and Ig index (rp = 0.576, P < 0.001). The data obtained from IR thermography can be used for monitoring the physiological health of sunflower plants, as well in potential prediction and control of yield.

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Influence of Foliar Fertilization with Amino Acids and Humic Acids on Productivity and Quality of Asparagus

Cited by 28 publications

References 23 publications

Influence of foliar applications of humic acids on yield and fruit quality of table grape cv. Italia

Influence of foliar applications of humic acids on yield and fruit quality of table grape cv. Italia

From Lab to Field: Role of Humic Substances Under Open-Field and Greenhouse Conditions as Biostimulant and Biocontrol Agent

Analysis of relations between crop temperature indices and yield of different sunflower hybrids foliar treated by biopreparations

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