Key points of chemical weeding techniques in corn fields
2025-05-29 02:42:45
Cornfield herbicides are simple to use, labor-saving, time-saving, and have good control effects. The use area is large, but some people use them improperly, which causes irreparable damage. The chemical weeding technology of corn field is now as follows:
1. Choose the appropriate herbicide. 40% isopropyl grassÂ·èŽ 250-300 g/mu, or acetochlor 100ml+glyphosate 100g; 3-5 leaves before use Nicosulfuron, Atrazine compound 100g water 50kg spray
2. Master the period of use. The soil is enclosed in the corn seedlings before sowing, and the stem and leaf treatment should be in the 3 - 4 leaf stage of maize.
3. Choose the appropriate medication time. Generally, it is selected after 5 pm or cloudy days on a windless sunny day.
Note:
1. In case of heavy rain within 6 hours after the drug, it should be refilled.
2. The land with high iron shovel and wheat stalks can be appropriately increased (usually 20-30% of the amount of ar) and the water volume (90-100 kg) is increased. Straw cover is large, the straw should be removed and then applied to ensure the efficacy.
3. It is strictly forbidden to increase the dose at will, so as not to affect the crops.
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