Effect of Different Levels of Vermicompost and Macro Nutrients on the Growth and Yield of Garlic (Allium sativum L.)

Abstract

A field experiment was conducted at the horticulture farm of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during October 2019 to July 2020 to study the effect of different levels of vermicompost and macro nutrients on the growth and yield of garlic. Garlic variety ‘BARI Rashun-3’ was used as planting material in this study. The experiment consists of single factor. Twelve treatment combinations were tested in this experiment: T0 = Control, T1 = 2 t ha-1 vermicompost, T2 = 4 t ha-1 vermicompost, T3 = 6 t ha-1 vermicompost, T4 = 50% NPKS (RDF), T5 = 100% NPKS (RDF), T6 = 2 t ha-1 vermicompost + 50% NPKS (RDF), T7 = 4 t ha-1 vermicompost + 50% NPKS (RDF), T8 = 6 t ha-1 vermicompost + 50% NPKS (RDF), T9 = 2 t ha-1 vermicompost + 100% NPKS (RDF), T10 = 4 t ha-1 vermicompost + 100% NPKS (RDF) and T11 = 6 t ha-1 vermicompost + 100% NPKS (RDF). The experiment was laid out in Randomized Complete Block Design (RCBD) with 12 treatment combinations having three replications. Data on different growth and yield parameter of garlic were recorded and significant variation was recorded for different treatments. Plant height and number of leaves plant-1 value of garlic was recorded to be the maximum from treatment T10 (4.00 t ha-1 vermicompost + 100% NPKS (RDF)) at different days after sowing (DAS). But, the highest bulb diameter (3.32 cm), the longest clove (3.44 cm), the highest bulb length (2.43 cm), the maximum number of cloves bulb-1 (21.25), the maximum fresh weight of bulb (35.11 g), the maximum dry weight of bulb (4.95 g), the highest fresh clove weight (6.93 g), the maximum dry clove weight (1.89 g), the maximum fresh weight of leaves plant-1 (25.31 g), the maximum dry weight of leaves (3.31 g), the highest bulb yield plot-1 (1.45 kg) and the maximum yield of garlic (14.53 t ha-1) was recorded from T11 (6.00 t ha-1 vermicompost + 100% NPKS (RDF) treatment.

Response of Onion Fresh Weight, Nutrients Uptake, Nitrogen Use Efficiency, Yield, and Bulb Quality to Different Nitrogen Fertilization Levels and Plant Density

“…This is probably the cause of the better performance and yield of individual onions grown at a wider spacing. Also, these plants with wider spacing produced the highest percentage of multiplier bulbs, which were not better for storing or meeting consumer demand [11][12][13]. Whereas the plants grown under the closest spacing gave the maximum total yield of onions due to the presence of more plants, resulting in the highest total yield.…”