scholarly journals Improving Soil Fertility and Seed Germination Using Seaweed Liquid Fertilizer of Sargassum wightii and Sargassum johnstonii

2020 ◽  
Author(s):  
Athiappan Murugan ◽  
Anandan Rubavathi ◽  
Kannan Visali ◽  
Vijayasingh Neginah

AbstractLiquid seaweed fertilizer gaining interest due to their use in crop productivity. The present study was designed to evaluate the impact of Methylobacterium oryzae amended liquid seaweed fertilizer on domestic plants like chilly and tomato. The Sargassum wightii methanolic extract was maximum (137 mg/g) among other solvent tested. Extract showed 0.456mg/mL, 1.587 mg/mL, 0.78 mg/g, 5.27 mg/g, 0.63 mg/mL, 0.98 mg/mL, 0.285 g/mL and 0.546 μg/mL of total phenolic, total flavonoids, total chlorophyll, total carotenoids, total protein, total carbohydrates, total lipids and total aminoacids respectively. The maximum survival of Methylobacterium oryzae was observed at 40 % of Sargassum wightii SLF extract with 3% Methylobacterium oryzae culture concentration and has viability of 750 × 106 CFU/l after 6 months. Impact of foliar sprayed liquid fertilizer on the chlorophyll, internode and shoot length had been promising over seed soaked.


2019 ◽  
Vol 39 (5) ◽  
pp. 406-410 ◽  
Author(s):  
S. Vijayakumar ◽  
S. Durgadevi ◽  
P. Arulmozhi ◽  
S. Rajalakshmi ◽  
T. Gopalakrishnan ◽  
...  

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Chen-Yao Chu ◽  
Tzu-Hsing Ko

Heavy metal-contaminated soils were leached with various acid reagents, and a series of treatments was assessed to understand soil fertility after acid leaching. Aqua regia digestion and a five-step sequential extraction procedure were applied to determine heavy metal distribution. The average total concentrations of Zn, Cd, Cu, and Pb for contaminated soil were 1334, 25, 263, and 525 mg·kg−1 based on the ICP/AES quantitative analysis. Other than Pb extracted by H2SO4, over 50% removal efficiency of other heavy metals was achieved. A five-step sequential extraction revealed that the bound-to-carbonate and bound-to-Fe-Mn oxides were the major forms of the heavy metals in the soil. The addition of organic manure considerably promoted soil fertility and increased soil pH after acid leaching. Seed germination experiments demonstrated that after acid leaching, the soil distinctly inhibited plant growth and the addition of manure enhanced seed germination rate from 35% to 84%. Furthermore, the procedure of soil turnover after acid leaching and manure addition greatly increased seed germination rate by 61% and shortened the initial germination time. Seed germination in untreated soil was superior to that in acid-leached soil, illustrating that the phytotoxic effect of acid leaching is more serious than that of heavy metals.


Author(s):  
Rinku V. Patel ◽  
Nayana Brahmbhatt ◽  
Krishna Y. Pandya

The aim of the study was to find the antioxidant activity and enzyme activity of catalase and peroxidase of vegetable plants. The results indicated that the use of seaweed liquid fertilizer can enhance the antioxidant activity of Solanum melongena L., Lycopersicon esculentum Mill., Capsicum annuum L., Brassica oleracea var. Capitata L. and Allium cepa L. The 1,1-diphenyl-2-picrylhydrazyl (DPPH) assays were used to determine the antioxidant properties of seaweeds by measuring the decrease in absorbance at 517 nm. The DPPH activity was highest in brown seaweed liquid fertilizer. This study implied that impacts on vegetable plantlets by seaweed liquid fertilizer extracted with enzymes is better in brown seaweed liquid fertilizer as compared to control.


2021 ◽  
Vol 10 (2) ◽  
pp. 484-491
Author(s):  
Muthuswamy Sujatha ◽  
Varadharajaperumal Pradeepa ◽  
Arumugasamy Mahalakshmi

2016 ◽  
Vol 8 (1) ◽  
Author(s):  
Chitra Nil Gopalakrishnan ◽  
Binumol T

<p>The effect of seaweed liquid fertilizer (SLF) of Hypnea musciformis (wulf.) Lamour.was tested at different concentrations (1, 2, 3 and 4 g/ml) on seed germination and biochemical constituents of Vigna radiata L. The extracts promoted seed germination at lower levels of SLF application. The seeds treated with, 2 g/ ml concentration showed maximum seed germination, radicle length, hypocotyl length, seedling length, fresh weight, phytomass, productivity, phytotoxicity, and photosynthetic pigments like Chlorophyll A, B, and total chlorophyll. Moreover, the different extracts of seaweed were subjected to phytochemical screening. All the<br />tested compounds (tannins, alkaloids, saponins, glycosides, and steroids) were present in varied degrees in Hypnea. The result of the present study can help in the identification and selection of raw materials in agriculture and drug industry.</p>


1993 ◽  
Vol 5 (3) ◽  
pp. 343-349 ◽  
Author(s):  
Pascale Patier ◽  
Jean-Claude Yvin ◽  
Bernard Kloareg ◽  
Yvette Liénart ◽  
Cyrille Rochas

2014 ◽  
Vol 11 (3) ◽  
pp. 1515-1519 ◽  
Author(s):  
P. Prakash ◽  
Sudipta Medhi ◽  
Swaraj Saikia ◽  
G. Narendrakumar ◽  
Thirugnanasambandam Thirugnanasambandam ◽  
...  

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