The correct answer is: All of the above.
Sprinkler irrigation is a method of irrigation that uses sprinklers to spray water onto crops. The sprinklers are usually mounted on towers or booms, and they can be adjusted to spray water in a specific pattern. Sprinkler irrigation is a very efficient way to irrigate crops, and it can be used to irrigate a variety of crops, including corn, soybeans, and wheat.
Drip irrigation is a method of irrigation that delivers water directly to the roots of plants. Drip irrigation systems use small pipes or tubes to deliver water to the plants, and they can be very efficient in terms of water usage. Drip irrigation is a good choice for irrigating crops that are sensitive to water stress, such as tomatoes and grapes.
Micro-irrigation is a type of drip irrigation that uses very small emitters to deliver water to the plants. Micro-irrigation systems are very efficient in terms of water usage, and they can be used to irrigate a variety of crops, including vegetables, fruits, and ornamental plants.
All of these modern irrigation techniques are being promoted in Manipur in order to improve crop yields and reduce water usage.