How to treat the drug damage caused by metsulfuron to rice?

Remedial measures: after planting (throwing) seedlings in the herbicide field, the field inspection should be strengthened, and immediate measures should be taken to reduce the loss when herbicide damage occurs. 1 replanting (throwing) seedlings: after diagnosis, it was confirmed that the drug damage of the seedlings was serious, more than 80% of the seedlings were yellowed, and some of them withered, it was necessary to raise the seedlings to be replanted (thrown) immediately. Method of operation: first clear the field water, gently rake once and then discharge the turbid water, and then rake flat, transplant (throw seedlings). In recent years, the sowing and transplanting (throwing) seedling season is 7-15 days earlier than the traditional season. It is found that the time from drug damage to supplementary insertion is generally 5 to 10 days, and the seasonal contradiction is not prominent. (2) strengthen fertilizer and water management and mid-ploughing: when it is found that drug-damaged fields should first clear the field water that has been applied and fill it with fresh live water. The second is ploughing in the field, breaking the original liquid layer and turning the chemicals absorbed by the topsoil into the deep soil to reduce the effect of chemicals on rice roots. 2kg / mu of imported compound fertilizer was applied 2 to 3 days after cultivation to promote root and leaf growth. (3) Application of rooting agent: after drainage, field cultivation and fertilization, it is best to apply rooting agent ABT200 kg with a concentration of 200mg / kg per mu, which has a better effect on promoting roots, the number of roots can be increased by 25% to 40%, the growth rate can be accelerated, and the seedling stage is only 5-7 days behind.