Influence of foliar application of algae extract and amino acids mixture on fenugreek plants in sandy and clay soils

Abstract

Abstract. Tarraf SA, Talaat IM, El-Sayed AEB, Balbaa LK. 2015. Influence of foliar application of algae extract and amino acids mixture on fenugreek plants in . Two pot experiments were conducted to study the effect of foliar application of algae extract and amino acids mixture on the growth and chemical constituents of fenugreek plants (Trigonella foenum-graecum L.). Plants were sprayed with different concentrations of algae extract (0.0, 2.5, 5.0 g/L) or equivalent of amino acids mixture (0.0, 0.625, 1.25 g/L). The results indicated that foliar application of amino acids mixture enhanced the vegetative growth of fenugreek plants, especially when plants were sprayed with 1.25 g/L amino acids mixture. Data also show that total nitrogen, essential oil percentage and yield followed the same trend. These results hold true for plants cultivated in either clay soil or sandy soil.Data also indicated that foliar application of algae extract to fenugreek plants significantly increased plant height, number of leaves, number of branches and fresh and dry weights of plant at vegetative growth stage and flowering stage of fenugreek plant, especially in plants treated with 5 g/L algae extract in sandy and clay soils, respectively. Treatment of fenugreek plants with algae extract markedly increased nitrogen, phosphorous and potassium contents, especially at 5 g/L.

Microalgal Biostimulants and Biofertilisers in Crop Productions

“…Phytohormones are small molecules that work as chemical messengers to regulate cellular activities in crops. Moreover, these compounds are able to influence metabolic processes, including photosynthesis, respiration, nucleic acid synthesis and nutrient uptake [116].…”

“…Some studies highlighted an association among greater nutrient uptake, higher biomass accumulation, and greater crop yields when microalgae are used as biofertilisers [15,16,149]. Different studies were performed to assess the effect of MBF on different crops such as rice, garlic (Allium sativum L.), fenugreek (Trigonella foenum-graecum L.) and tomato [14,116,150,151], due to their potential possible applications in the different agricultural cropping systems, and to improve the agricultural sustainability.…”

“…In this regard, Tarraf et al [116] showed that fenugreek plants treated with microalgae extract of Arthrospira spp. showed higher N, P, and K contents, especially at 5 g L −1 compared to the untreated plants.…”

Using of Microbial Fertilizer as Biostimulant Alleviates Damage from Drought Stress in Guar (<i>Cyamopsis Tetragonoloba</i> (L.) Taub.) Seedlings

“…favorable effect of microalgae might be predicated to its success providing the plants with necessary nutrients and phytohormones. Tarraf et al [29] showed that fenugreek plants treated with a foliar application of algae extract had a significantly increased the number of leaves and branches, plant height, and fresh and dry weight during the vegetative growth and flowering stages. Sharara and El-Aal [30] reported that microbial inoculation such as microalgae stimulated growth in the plants in 2 ways: 1) directly, through the production of plant hormones and an improved uptake of nutrients, or 2) indirectly, via microbial balance changes in the rhizosphere towards beneficial micro-organisms.…”

Produção, aspectos nutricionais e fisiológicos de alface sob adubação foliar com Spirulina platensis

“…Devido ao potencial das microalgas para uso em sistemas de produção mais sustentáveis como a agricultura orgânica e a agricultura biodinâmica, uma série de trabalhos foram realizados com o objetivo de avaliar o efeito de fertilizantes à base de microalgas em algumas culturas (ZODAPE et al, 2011;PAUDEL et al, 2012;SHALABY;EL-RAMADY, 2014;TARRAF et al, 2015;GARCIA-GONZALEZ;SOMMERFELD, 2015). Em muitos desses trabalhos observou-se efeito positivo desses produtos, quando aplicados principalmente via foliar, em culturas como pimenta (ALY; ESAWY, 2008), alho (SHALABY; EL-RAMADY, 2014), arroz (PAUDEL et al, 2012) e tomate (ZODAPE et al, 2011).…”