PO 34. Describe advantages and limitations of the following fertilizer placement methods.

Fertigation is distribution with water-soluble fertilizers and chemicals through an irrigation system.

• Advantages: high nutrient use efficiency
• Disadvantages: irrigation equipment needed (injection pump, etc); risk of uneven application in windy situations

Foliar application is application of a small amount of fertilizer or mineral through direct spraying onto the leaves.

• Advantages: rapid uptake
• Disadvantages: phytotoxicity, high expense, limited to small and/or repeated application