How should rice be remedied after herbicide damage?

Rice is an important food crop in our country, grown by almost every household, especially in the north where it covers the largest planting area. During rice cultivation, various types of herbicide damage can occur, so what should be done when rice suffers herbicide damage?

1. What should be done when rice suffers herbicide damage?

1. Fertilization remedy. When spots from herbicide damage appear on rice leaves, leaf edges become scorched, or plants show yellowing symptoms, keep shallow water in the field and apply additional fertilizer to quickly replenish the nutrients rice needs and restore growth.

2. Drainage and irrigation remedy. If rice is mistakenly sprayed with herbicide, immediately spray the rice seedlings with clean water upon discovery, and repeatedly exchange the water in the field to reduce the concentration of the herbicide damage. Then apply a small amount of decomposed organic fertilizer to promote recovery and growth.

3. Hormone remedy. After rice seedlings suffer damage from 2,4-D, gibberellin or natural brassin can be sprayed immediately for remediation, and a certain amount of 885 adjuvant can be added to each bucket of water according to the instructions, which can effectively alleviate the herbicide damage.

2. What symptoms occur when rice suffers herbicide damage?

Herbicide damage is generally divided into acute and chronic types. Acute herbicide damage usually shows symptoms within 2 days after application, including spots, scorching, wilting, and deformities; chronic herbicide damage develops slowly and generally manifests as slow growth, reduced tillering, delayed grain setting, and reduced yield.

1. Rice wilting: Herbicide-damage wilt shows symptoms on the whole plant and is generally caused by herbicides. For example, if rice is mistakenly sprayed with haloxyfop during the seedling stage, the whole plant will wilt and die.

2. Deformed growth: Deformities in rice caused by herbicide damage mostly appear on the leaf and root parts of the rice. Common deformities include rolled leaves, clustering, swollen roots, and deformed panicles. For example, when rice suffers damage from 2,4-D, the central leaves become stiff, and tubular leaves and deformed panicles appear.

3. Appearance of spots: Common ones include brown spots, yellow spots, and so on. If rice is mistakenly sprayed with butachlor in the early growth stage, the rice seedlings will clearly show irregular brown spots.

4. Growth stagnation: After rice suffers herbicide damage, normal growth is inhibited and slow growth occurs. For example, after rice transplanting, if butachlor is sprayed improperly, in addition to brown spots, signs such as slow growth will also appear.