In short, foliar feeding is usually not the most cost effective method of supplying nutrients to plants. However, it has proven to be an effective method of treating certain nutrient deficiencies and (perhaps) boosting plant growth in times of stress.

Is foliar spray better?

The percentage contribution of nutrients from the soil is much higher than the nutrient supplied through foliar for obtaining crop yield. Though the application of nutrients through foliar have higher utilization efficiency, the foliar nutrients alone may not satisfy the complete nutrient requirement of any crop.

Is foliar spray good for plants?

A mid-season foliar spray of fertilizers will balance and complete plant nutrition, and help to retain healthy and fruitful growth. A relatively small amount of fertilizers will lead to a dramatic improvement and will get the crops to optimal growth curves. This is a real Bonus.