EFFECT OF BIO-FERTILIZER MIXED NUTRIENT SOURCES ON GROWTH, SEED YIELD AND QUALITY OF RADISH VARIETIES

Abstract

The experiment was conducted at the Central Farm of Sher-e-Bangla Agricultural University (SAU), Sher-e-Bangla Nagar, Dhaka-1207, Bangladesh during the period from November, 2019 to April, 2020 to investigate the effect of bio-fertilizer mixed nutrient sources on the quality seed production of radish varieties. The seeds of BARI mula-1, BARI mula-2 and BARI mula-4 were collected from the Bangladesh Agricultural Research Institute, Gazipur, Dhaka. This experiment was conducted with two factors: Factor-A (Varieties)- (i) V 1 ii

- BARI mula-1 (ii) V 2 - BARI mula-2 (iii) V 3 - BARI mula-4; Factor-B: (Nutrients in absence or presence of bio-fertilizer) – (i) N 0 - NPKS (standard dose) + without bio-fertilizer (ii) N 1 - NPKS (standard dose) + Bio-fertilizer (iii) N 2 - 50% CD+ 50% Vermicompost (iv) N 3 - 50% CD + 50% Vermicompost + Bio-fertilizer. There are 12 treatment combinations such as V 1 , V 1 N 1 , V 1 N 2 , V 1 N 3 , V 2 N 0 , V 2 N 1 , V 2 N 2 , V 2 N 3 , V 3 N 0, V 3 N 1 , V 3 N 2 and V 3 . The two factors experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. BARI recommended the following doses of manures and fertilizer: Cowdung-25 kg/ha, Urea-300 kg/ha, TSP-200 kg/ha, MP-200 kg/ha, Gypsum-50 kg/ha and Bio-fertilizer- 4kg/ha were applied. Seeds were sown on 15 November and distance to be maintained 30cmX30cm, respectively. In case of different variety, maximum number of siliqua per inflorescence (132.42), number of seeds per siliqua (6.58), seed yield per hectare (1.38 t) were observed from V 3 treatment and minimum number of siliqua per inflorescence (67.50), number of seeds per siliqua (3.62) and seed yield per hectare (0.75 t) were obtained from V 2 treatment. For different nutrients, maximum number of siliqua per inflorescence (125.67), number of seeds per siliqua (6.20) and seed yield per hectare (1.33 t) were observed from N 1 treatment and minimum number of siliqua per inflorescence( 93.11), number of seeds per siliqua (4.97) and seed yield per hectare (0.97 t) were observed from N 2 treatment. Due to combined effect, at harvest the maximum number of siliqua per per inflorescence (154.33), number of seeds per siliqua (7.27) and seed weight per hectare (1.59t) were obtained from V 3 treatment combination and the minimum number of siliqua per inflorescence (61.0), number of seeds per siliqua (3.27) and seed weight per hectare (0.63 t) were produced from V 2 N 2 treatment combination. So, the V 3 N 1 treatment combination appeared to be the best for achieving the higher growth and seed yield of radish.