When I went to the countryside, I found that some melon farmers sprayed herbicides to prevent weeds on the inner side of the watermelon arch shed. However, 3 to 4 days after spraying the herbicides, the melons had more than 1 meter of watermelon but had phytotoxicity.
When looking for the cause, the author found that when the herbicide was sprayed, the watermelon in the shed was buckled with a small arch shed, and protective measures were taken. However, the bottom end of the shed film on both sides of the arch shed was “internal pressure typeâ€, that is, inside the arch shed. Compacted with soil, as a result, the droplets formed in the shed will flow down the shed, causing a piece of wet soil there, after spraying Yu Suifeng (48% DingÂ·èŽ suspension) and paraquat herbicide, The liquid will gradually spread with the fog in the shed, and then the watermelon (after 10 am every day, the small arch shed will be removed). Because the young shoots and young leaves are young tissues, they are vulnerable. Therefore, in the production, when controlling the weeds on the inner side of the arch shed, the herbicide should be used with caution.
For melons that use phytotoxics with herbicides, spraying water in the early stages of damage can reduce the phytotoxicity. For the melons with moderate symptoms, the author suggests that the first is to spray cytokinin + Yundaquan tree + chitin to relieve the phytotoxicity, and promote the head; the second is to rush the fertilization to promote the roots and vines, and draw The arch shed is on the inside of the ground. The medicinal damage is severely meloned, and the heart can be changed or the garden can be picked up, and the vegetables with short growing season such as beans can be planted again.
Author: Hongtao
Source: Henan Science and Technology News
When looking for the cause, the author found that when the herbicide was sprayed, the watermelon in the shed was buckled with a small arch shed, and protective measures were taken. However, the bottom end of the shed film on both sides of the arch shed was “internal pressure typeâ€, that is, inside the arch shed. Compacted with soil, as a result, the droplets formed in the shed will flow down the shed, causing a piece of wet soil there, after spraying Yu Suifeng (48% DingÂ·èŽ suspension) and paraquat herbicide, The liquid will gradually spread with the fog in the shed, and then the watermelon (after 10 am every day, the small arch shed will be removed). Because the young shoots and young leaves are young tissues, they are vulnerable. Therefore, in the production, when controlling the weeds on the inner side of the arch shed, the herbicide should be used with caution.
For melons that use phytotoxics with herbicides, spraying water in the early stages of damage can reduce the phytotoxicity. For the melons with moderate symptoms, the author suggests that the first is to spray cytokinin + Yundaquan tree + chitin to relieve the phytotoxicity, and promote the head; the second is to rush the fertilization to promote the roots and vines, and draw The arch shed is on the inside of the ground. The medicinal damage is severely meloned, and the heart can be changed or the garden can be picked up, and the vegetables with short growing season such as beans can be planted again.
Author: Hongtao
Source: Henan Science and Technology News
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