Using technology:

1. The suitable application period for rice is once in the late tillering stage (one week before jointing), with a water consumption of 30-45 kg/mu; Citrus shall be sprayed when the spring shoots are ripe and the summer shoots are not pumped, and the spray shall be uniform and considerate, and no missing spraying or repeated spraying is allowed.
2. Do not spray on windy days or expected rain within 1 hour.
3. Apply once to rice before jointing; Citrus can be sprayed up to 2 times per season.