Micronutrients are essential nutrients that are required by plants in small quantities for their optimal growth and development. These nutrients play a crucial role in the metabolic functions of the plant, which ultimately affect the quantity and quality of the yield. One of the most popular ways of providing micronutrients to crops is through foliar spraying. In recent years, foliar application of micronutrients has become increasingly popular due to its efficacy and cost-effectiveness. In this article, we will discuss how much micronutrients can be sprayed per hectare in maize crops.
Maize is one of the most important cereal crops grown in the world and is generally grown in areas that are deficient in micronutrients such as iron, zinc, and manganese. Foliar application of these micronutrients has proven to be effective in increasing the yield and quality of maize crops. The amount of micronutrients that can be sprayed per hectare in maize crops depends on various factors such as crop stage, nutrient requirement, and the nutrient status of the soil. However, there are general guidelines that farmers can follow to ensure that the right amount of micronutrients is being supplied to the crops.
The recommended amount of micronutrient that can be sprayed per hectare in maize crops can vary from 500 gm to 1 kg for iron, 400 gm to 800 gm for zinc, and 200 gm to 400 gm for manganese depending on the stage of the crop growth and nutrient requirements. The micronutrient requirements of the maize crop can be determined by soil testing and plant analysis.
In addition to the amount of micronutrients to be applied, the timing of the application is also essential. The most effective time for foliar application of micronutrients is during the vegetative stage of the crop when the plant is actively growing. Foliar application during this stage ensures that the micronutrients are effectively absorbed by the leaves and transported to the rest of the plant.
It is important to note that micronutrient foliar application should not be used as a substitute for soil fertility management. The application of micronutrients should be done in conjunction with appropriate soil fertility management practices such as crop rotation, organic matter management, and proper nutrient application rates.
In conclusion, the amount of micronutrients that can be sprayed per hectare in maize crops depends on various factors such as crop stage, nutrient requirements, and soil status. Farmers should ensure that the right amount of micronutrients is being supplied to the crops to ensure optimal growth and yield. Additionally, foliar application should be done in conjunction with appropriate soil fertility management practices.