Effect of algal biofertilizers on growth and yield of Oryza sativa L.(var. jaya) in coastal region of Goa

Abstract

Pot experiments were conducted in rabi season to study the influence of three algal biofertilizers viz., Anabaena oryzae, Calothrix membranacea and Nostoc rivulare on growth and yield of Paddy (Oryza sativa var. jaya). The most abundant indigenous heterocystous cyanobacteria were isolated from the local paddy fields, cultured in BG-11 medium and used for the study. The study revealed that the combination of all the three cyanobacterial species significantly improved yield and could effectively reduce the use of inorganic fertilizers.