Foliar Applied Plant Nutrition

Foliar feeding, a term referring to the application of essential plant nutrients to above-ground plant parts, has been documented as early as 1844 when an iron sulfate solution was sprayed as a possible remedy for “chlorosis sickness.” More recently, foliar feeding has been widely used and accepted as an essential part of crop production, especially on horticultural crops. Although not as widespread on agronomic crops, the benefits of foliar feeding have been well documented and increasing efforts, have been made to achieve consistent responses.