Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 23, Issue 3, 2021; Page No.(502-505)

EFFECT OF LEVELS OF POTASSIUM AND BIOFERTILIZERS ON GROWTH, YIELD OF PEARLMILLET (PENNISETUM GLAUCUM L.)

GADDAM RAJU, UMESHA C., APPANA BHARATHI, KORUKONDA LEELAVATHI, C.Y.N.A. VIJAY AND SHAHAZAD AHMED KHAN

Abstract

A field experiment was conducted during kharif 2020 at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P). The soil of experimental plot was sandy loam in texture, nearly neutral in soil reaction (pH 7.1), low in organic carbon (0.36%), available N (171.48 kg/ha), available P (15.2 kg/ha) and available K (232.5 kg/ha). The treatments which are T1: 10 kg/ha potassium + VAM, T2: 20 kg/ha potassium + VAM, T3: 20 kg/ha potassium + VAM, T4: 10 kg/ha potassium + PSB, T5: 20 kg/ha potassium + PSB, T6: 30 kg/ha potassium + PSB, T7: 10 kg/ha potassium + Azotobacter, T8: 20 kg/ha potassium + Azotobacter, T9: 30 kg/ha potassium + Azotobacter used. The experiment was laid out in Randomized Block Design with nine treatments each replicated thrice. The results showed that viz: plant height (186.12 cm) and maximum dry weight (47.12 g) were significantly recorded with the application of 30 kg/ha potassium + Azotobacter. Maximum effective tillers (3.33), ear head length (28.93 cm), number of grains/ear head (1609.46), test weight (8.94 g) and higher grain yield (3.91 t/ha), stover yield (7.23 t/ha) were significantly recorded with the application of 30 kg/ha potassium + azotobacter compared to all other treatments. However, the maximum gross returns (84115.17 INR/ha), net returns (50004.17 INR/ha) and B:C ratio (1.46) was significantly recorded significantly with the application of 30 kg/ha potassium + azotobacter as compared to all other treatments.