Effect of seaweed extracts on growth and yield of rice plants

Abstract

Abstract. Sunarpi, Jupri A, Kurnianingsih R, Julisaniah NI, Nikmatullah A 2010. Effect of seaweed extracts on growth and yield of rice plants. Nusantara Bioscience 2: 73-77. Application of liquid seaweed fertilizers on some plant species has been reported to decrease application doses of nitrogen, phosphorus, and potassium on some crop plants, as well as stimulating growth and production of many plants. It has been reported that there are at least 59 species of seaweeds found in the coastal zone of West Nusa Tenggara Province, 15 of those species weres able to stimulate germination, growth, and production of some horticultural and legume plants. This research aims to investigate the effect of seaweed extracts obtained from ten species on growth and production of rice plants. To achive the goal, seaweed (100 g per species) wasextracted with 100 mL of water, to obtain the concentration of 100%. Seaweed extract (15%) was sprayed into the rice plants during vegetative and generative stages. Subsequently, the growth and yield parameters of rice plants were measured. The results showed that extracts of Sargassum sp.1, Sargassum sp.2, Sargassum polycistum, Hydroclathrus sp., Turbinaria ornata, and Turbinaria murayana, were able to induce growth of rice plants. However, only the Hydroclathrus sp. extract could enhance both growth and production of rice plants.

Growth and yield performance of rice cultivars (Oryza sativa L.) under seaweed extract and inorganic fertilizer

“…The result implies that the reduction of fertilizer application can result to low tiller production. The result obtained was in contrast to the research conducted earlier (30), that increased application of nitrogen contributes to the production of tillers and to the another study performed stating that application of seaweed extract can increase the production of more tillers in rice plants (14). The variety and fertilizer as the two factors combination affected the number of productive tillers.…”

“…Seaweed liquid extract has newly gained importance as a foliar spray for many crops as well as a variety of grasses, flowers, cereals, vegetables and spices (13). The application of liquid seaweed fertilizers on various crop species can lower the application dosage of nitrogen, phosphorus and potassium and also stimulating plant growth and yield (14). Seaweed extract is effective in increasing the growth parameters (plant height, number of plants per square meter, number of pods per plant, number grains per pod, number of branches per plant and test weight), yield and enhancing nutrient uptake by the plants (15).…”

Organic Liquid Manures and Bio-Fertilizers: A Tool for Soil and Crop Productivity

“…A field experiment was conducted by Kavitha et al (2008) resulted that sea weed extract (phytozyme) application produced significantly higher growth of rice. Higher number of leaves and tillers were observed with sea weed extract application on rice (Sunarpi et al, 2010).…”

Marine seaweeds (biofertilizer) significance in sustainable agricultural activities: A review

“…of 0.5% induced maximum plant growth, nutrient uptake, and quality yield [11]. Some different species of seaweed were applied on rice fields, which positively influenced crop yield [23]. Ascophyllum nodosum is recognized as the most successful and widely utilized seaweed extract, which acts as a biostimulant for better crop yield.…”