Production, Formulation and Application of Seaweed Liquid Fertilizer using Humic Acid on Growth of Arachis hypogaea

Abstract

The aim of the present investigation was to determine the influence of Seaweed Liquid Fertilizer (SLF), Humic acid (HA) and combinations of SLF: HA in various concentrations on the growth of Groundnut (Arachis hypogaea). The above plant growth promoters are applied as foliar spray at an interval of twice in a month with the following concentrations such as SLF (1 to 10%), HA (0.1 to 1%) and SLF:HA (1:0.9% to 9:0.1%). The SLF:HA (6:0.4%) was found to be the most effective formulation with increasing growth of shoots, number of branches, total carbohydrate content, total protein content and total chlorophyll content followed by SLF 5% and HA 0.6%. This study helps to formulate an efficient chemical free fertilizer for maximum Agriculture produce.

Synergistic Biostimulatory Action: Designing the Next Generation of Plant Biostimulants for Sustainable Agriculture

“…In recent years, limited experimental studies testing the additive and/or synergistic effects of various PBs categories, have demonstrated that combinations of non-microbial PBs or microbial inoculants with HA, SWE, or PH give more reproducible benefits to plant growth and production ( Borges Baldotto et al, 2010 ; Bettoni et al, 2014 ; Nikbakht et al, 2014 ; Prakash et al, 2014 ; Rouphael et al, 2017a ). For instance, groundnut sprayed at biweekly intervals with HA or SWE increased plant height and branching by 34.5 and 33% (for HA) and 17.2 and 60.0% (for SWE), respectively, in comparison to the untreated control treatment, whereas the applications of both PBs together (SWE:HA) exhibited a synergistic interaction with higher increase (65.0 and 100%, respectively) compared to the sum of the independent biostimulant effects (Figure 1 ; Prakash et al, 2014 ). In the same study, improvement in plant growth was associated to the stimulation of N uptake and chlorophyll biosynthesis which may have improved the photosynthetic activity, triggering the translocation of photosynthates to the sinks.…”

Harnessing Synergistic Biostimulatory Processes: A Plausible Approach for Enhanced Crop Growth and Resilience in Organic Farming

“…Lastly, synergistic effects could be observed when cumulative effects of BSs exceeded their additive effects; which is ultimately the preferred outcome. In recent years, many studies demonstrated that combined application of microbial and non-microbial BSs generally provided better benefits due to synergistic interactions among the BSs, resulting in enhanced growth, and stress protection [ 24 , 26 , 222 , 223 , 224 , 225 ]. For instance, microbial BSs Trichoderma virens (TG41) with a vegetal biopolymer-based BSs (VBP) enhanced CO 2 assimilation in lettuce and increased mineral contents by 10% for K and 12% for Mg [ 226 ].…”

Biostimulanten: soorten en werkingsmechanismen

“…Het voordeel van mengsels is dat ingrediënten elkaar kunnen versterken (synergistische werking). Bijvoorbeeld toevoeging van zeewierextracten in combinatie met humuszuur toonde een versterking van groeikracht; groter dan toevoeging van de afzonderlijke ingrediënten (Prakash et al 2014). Niettemin is er een gebrek aan kennis over interacties tussen niet-microbiële biostimulanten (Rouphael and Colla, 2018).…”

“…Deze interactie-effecten kunnen positief of negatief zijn. Bijvoorbeeld, toevoeging van zeewier extracten in combinatie met humuszuur toonde een versterking van groeikracht; een versterking die groter is dan op basis van toevoeging van de losse ingrediënten (Prakash et al 2014). Interacties tussen micro-organismen in biostimulanten kunnen ook de effectiviteit veranderen.…”