Chemigation is the application of fertilizers or pesticides through which method?

Chemigation refers to the practice of delivering fertilizers or pesticides through irrigation systems directly to the plants. It optimizes the delivery of these substances, ensuring that they are applied efficiently and effectively where they are needed most. The correct answer encompasses all listed methods of irrigation.

Sprinkler irrigation systems allow for the misting or spraying of a mixture of water and chemicals, enabling even distribution over the crops. Surface or gravity irrigation systems can also incorporate chemigation, where the chemical solution is introduced into the water flowing to the crops, facilitating optimal uptakes by plants. Additionally, irrigation systems supplied through a well can be set up to introduce chemicals directly into the water being pumped to irrigate fields.

By including all these methods in the answer, it emphasizes that chemigation can utilize a variety of irrigation techniques, making it a versatile approach for managing soil fertility and controlling pests. This multi-method applicability underscores the importance of knowing the effective integration of chemigation in modern agricultural practices.