Improving growth and productivity of shallot (Allium ascalonicum L.) applied using organic and inorganic fertilizer

Abstract

Objective: This research aims to identify and examine organic and inorganic fertilizer on the growth and productivity of shallots. Materials and Methods: This study was carried out under field conditions in the research and application fields of Faculty of Agriculture, Hasanuddin University. The main plot is the liquid organic fertilizer (LOF) consisting of control, 10 mL/L, and 20 mL/L. The subplots, namely the zwavelzure ammonium (ZA) fertilizer, consist of control, 50 kg/ha, 100 kg/ha, and 150 kg/ha. Results: Based on the research conducted, it can be seen that the interaction between the application of LOF (20 mL/L) and ZA fertilizer (150 kg/ha) recorded the highest average fresh bulb weight (145.60 g). Applying LOF (20 mL/L) can increase the average plant height (23.50 cm at 21 days after planting (DAP)), number of leaves (25.60 at 35 DAP), the number of bulbs (10.93), bulb diameter (2.77 cm), production per hectare (21.91 t), and chlorophyll index (20.48) of shallot plants. On the other hand, ZA fertilizer (150 kg/ha) influences plant height (44.03 cm at 42 DAP), number of leaves (26.67), production per hectare (20.96 t), and chlorophyll index (20.64) of shallot plants. Conclusion: The application of organic and inorganic fertilizers has a significant influence on the growth and production of shallot plants, both in interaction and individually.

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