Herbicides used after sweet potato seedlings

The special herbicides for sweet potato seedlings include sweet potato Daan sweet potato field post-seedling herbicide, potato Noble sweet potato field post-seedling herbicide, Shunerwei sweet potato field post-seedling herbicide, Shunerwei sweet potato field post-seedling herbicide, Shunerwei sweet potato field post-seedling herbicide, Shunerwei sweet potato field post-seedling herbicide, Shunerwei sweet potato field post-seedling herbicide, Shunerwei sweet potato field post-seedling herbicide

Matters needing attention in the use of herbicides in sweet potato field

1. Paying attention to the observation of weeds in the field, the herbicide had better effect on Gramineae and broad-leaved tender grass, but poor effect on old grass, patchouli (smelly grass) and so on.

two。 Strictly follow the instructions and try it on a small scale first. Sweet potato can be used after transplanting and having a stem length of more than 15 cm. We should first arrange the sweet potatoes to the top of the border, use 2 pots of water per mu, dissolve them twice when mixing water, try not to touch the sweet potato buds, observe the efficacy of 7 Murray after 10 days, and then decide whether to continue spraying. If there is no negative effect, the weeds turn yellow, the growth of sweet potatoes is not affected or the growth of sweet potatoes is slightly fixed, you can continue to use herbicides, otherwise they will no longer be used.

3. In the process of pesticide application, we should pay attention to do not hit again after the pesticide is hit, otherwise it is easy to produce drug damage. 15 kilograms per pot of water, not too strong.

4. If serious drug damage occurs in the course of use, or when the fixed time of the seedling is more than 10 mures for 15 days, the detoxifying pesticides such as plant power 2003 or cereal seedling No. 8 and Lvba 120 should be sprayed in time, and the management of fertilizer and water should be strengthened.