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Onion farming is a lucrative business that requires importance of fertilization to obtain an optimal harvest. One cannot deny that applying the right amount of fertilizer is critical to the growth and yield of onion crops. Here is all you need to know about fertilizer doses in onion farming.
The Importance of Fertilizer in Onion Farming
Fertilizer application is crucial to sustaining a steady yield of onion crops due to the high nutrient requirements of the plant. The plant’s growth can be stunted or inhibited if the soil lacks adequate nutrients. Furthermore, the plant’s development and bulb formation can be negatively impacted by inadequate nutrient availability.
Fertilizer dose in onion farming
The three primary macronutrients required by onion plants are Nitrogen (N), Phosphorus (P), and Potassium (K). Nitrogen is required by the plant to produce amino acids, proteins, and enzymes. Phosphorus is necessary for root and stem development, as well as the generation of flowers and fruits. On the other hand, potassium is vital as it affects water usage in plants and helps in the flowering and fruiting process.
The appropriate fertilizer dose and ratio to employ on onion crops are determined by the soil fertility and nutrient availability in the soil. Generally, the ideal N:P:K ratio needed for a good yield of onion crops is about 100:50:100.
Additionally, it is worth noting that sulfur, magnesium, and zinc are micronutrients critical for onion growth. A weekly dose of 10g of magnesium can also be added to the soil to promote healthy growth and increase bulb size.
Fertilizer Application Techniques
Fertilizer can be applied either through broadcasting or banding techniques. Banding is the technique of applying fertilizers or manures to the base or in trenches about 5-10cm around the plant. While broadcasting involves applying fertilizers or manures uniformly over the entire field and ploughed into the soil until it’s properly mix.
When to apply fertilizers
When you should apply fertilizer depends on whether you’re using organic or inorganic fertilizers. Inorganic fertilizers can be applied in three stages: pre-planting, vegetative stage, and bulb formation. Organic fertilizers should be applied about four weeks before planting to allow decomposition.
Conclusion
In summary, to obtain maximum yield and a profitable onion farming business, one must apply the appropriate fertilizer dose. When planning out how much fertilizer to use, it is essential to consider the soil’s fertility and nutrient availability. Apply the appropriate amount of NPK at various stages of plant growth to ensure optimal yields.