Sure, here’s an article on Fertilizer Dose in Onion Crop:
Onions are widely grown as a vegetable crop in many parts of the world. They are a vital part of our daily diet and a significant source of nutrients like vitamins, minerals, fiber, and antioxidants. However, to get good yields and high-quality produce, onion plants require suitable soil conditions and appropriate fertilizer management practices.
Fertilizer plays a vital role in the onion crop, as it provides essential nutrients that are not available in sufficient quantities in the soil. The correct fertilizer dose in onion crop depends on many factors like soil type, previous crop history, weather conditions, and onion variety. A well-balanced fertilizer program can improve soil fertility, enhance crop growth, and increase yields.
Nitrogen (N), Phosphorus (P) and Potassium (K) are the three main macronutrients required in onion crops. Nitrogen is essential for foliage growth, leaf size, and bulb development, while phosphorus supports root development, disease resistance, and early maturity. Potassium plays a key role in bulb formation, osmoregulation, and stress tolerance.
In general, the fertilizer dose for onions is 125 kg N, 70 kg P, and 70 kg K per acre. However, the actual dose depends on soil test results, plant age, and growth stage. Split application of fertilizers is recommended, with the first application given at planting time and the rest at later stages during the growing season.
For example, at planting time, apply 60 kg of Nitrogen, 35 kg of Phosphorus, and 35 kg of Potassium per acre. Two to three weeks after planting, apply 30 kg of Nitrogen and 35 kg of Potassium per acre. During bulb development stage, apply 35 kg of Nitrogen and 35 kg of Potassium per acre.
Apart from the above macronutrients, other essential micronutrients like calcium, magnesium, sulfur, copper, boron, iron, and zinc are also required in small quantities. Lack of these nutrients can lead to a range of issues like decreased yield, poor quality, and susceptibility to pests and diseases.
In conclusion, proper fertilizer management is critical for successful onion production. It is essential to apply the right fertilizer dose in onion crop, maintaining the proper balance between macronutrients and micronutrients, and splitting the application according to the growth stages. With proper care and attention, onion growers can produce high-quality, nutritious, and profitable crops.