M S Zaman
Principal Scientific Officer
Regional Spices Research Centre, BARI, Gazipur
M.N. Yousuf
Scientific Officer
Regional Spices Research Centre, BARI, Gazipur
S Akter
Principal Scientific Officer
Regional Spices Research Centre, BARI, Gazipur
The experiment was conducted to determine the best combination of nitrogen and irrigation level on growth and yield as well as storage life of garlic bulb. The experiment was laid out in factorial randomized complete block design with three replications having treatments: four levels of nitrogen (0. 50, 100 and 150kg ha-1) and three levels of irrigation (I1: irrigation at 20 days interval I2: irrigation at 15 days interval: I3: irrigation at 10 days interval) was used in the experiment. A blanket fertilizer dose of 60, 120, 30 kg ha-1 + cowdung 10 tha-1 was applied in the experiment. Results revealed that garlic responded significantly to irrigation and nitrogen. BARI Garlic-1 was used as a test crop. The highestbulb yield (6.90tha-1) was recorded with N150 kg/ha provided with 5 irrigations at 15 days interval (I2). Maximum weight loss of garlic bulb (3%) was observed in plot fertilized with higher dose of nitrogen and maximum irrigations (5) (I3 x N150).
GARLIC, IRRIGATION, NITROGEN, STORAGE LIFE, YIELD.
Regional Spices Research Centre, BARI, Gazipur
Variety and Species
To produce quality bulb of garlic.
The experiment was conducted at the Regional Spices Research Centre, Gazipur during 2012-2013 with the objective to determine the best combination of nitrogen and irrigation level on storage life of garlic bulb. Four levels of nitrogen viz., 0. 50, 100 and 150 kg ha-1 and three levels of irrigation viz: I1: irrigation at 20 days interval: I2: irrigation at 15 days interval: I3: irrigation at 10 days interval was used in the experiment. A fertilizer dose of P60, K120, S30 kg ha-1 + cowdung 10 t ha-1 was applied as blanket dose. The entire amount of phosphorus, sulphur and cowdung along with ½ of nitrogen and potassium were applied as basal dose. The rest amount of nitrogen and potassium were applied in two equal splits at 25 end 50 days after clove planting. The experiment was laid out in factorial RCB deign with threes replications. The unit plot size was 2m x 1.5m. Garlic cloves (BARI garlic 1) were planted on 16 November 2012 at spacing of 15cm x 10cm. Each plot was lightly irrigated just after planting. Weeding and mulching were done as and when necessary. To protect the crop from insect pests and diseases insecticides and fungicides (Rovral/Ridomil gold/Antacol) were sprayed at 10-15 days interval. Pre-mature sprouting of bulbs was observed at 15 days interval stating 60 days after bulb planting. The crop was harvested on 22 March 2013. The cured bulbs were stored in wooden rake on 10 April 2013. Data on physiological weight loss, spongy/rubberized bulbs and decay loss were recorded at 20 days interval.
Annual Research Report 2012-13, Spice Research Center, BARI, Shibganj, Bogra
35,000/-
Irrigation and nitrogen fertilization had no significant effect on growth, yield parameters and yield of garlic bulb except single bulb weight (Table 4). The highest yield of garlic bulb (6.90 t ha-1) ,obtained in I2 x N150 combination and the lowest yield (3.70 t ha-1) was found in I1 x N0 combination. However,150 kg N ha-1 with 5 irrigations at 15 days interval is required for desired yield of BARI Garlic-1.
Report/Proceedings