Response of liquid biofertilizers on growth and yield of brinjal (Solanum melongena L.) crop

Abstract

Biofertilizer is natural and low cost fertilizer which is containing a large population of specific or group of microorganism. Therefore, the present study was carried out with the aim to examine Azotobacter sp. and Azospirillum sp. as the liquid biofetilizer on growth, quality and yield of brinjal (Solanum melongana L.). The brinjal seeds were treated with liquid biofertilizer before sowing on nursery bed, whereas the NPK was applied in four different rates (25, 50, 75 and 100%). Observation was recorded at different time intervals as 30, 60 and 90 days. Maximum growth was observed in treatment T15 which comprised of 100% of NPK along with Azotobacter and Azospirillum. The experimental results revealed significant variations among the treatments in respect of morphological characters i.e. plant height (58.63 cm) number of branches (13.33), number of leaves (15.33), number of flowers (22.33), number of fruits (13.67), fruit length (14.73 cm), fruit girth (8.00 cm) fruits weight (118.00 g) and physiological characters like leaf area (159 cm2) and dry weight (9.17 g). Thus, it can be concluded that for obtaining maximum yield as well as profit from brinjal, seeds can be inoculated with liquid bio-fertilizers of Azotobacter and Azospirillum.