Detailed Explanation of Herbicide Application Methods During the Corn Growing Period
Herbicide Use During the Corn Growing Period
(Agricultural Wealth Network) Weed control during the corn growing period is very important and affects the corn harvest, so the use of herbicides has drawn much attention from many farmers. The herbicide varieties commonly used during the corn growing period include:
Nicosulfuron and its compound formulations. Nicosulfuron is a post-emergence herbicide used in corn fields, and its effect on broadleaf weeds is not ideal. At present, the most widely used post-emergence herbicides in corn fields on the market are mostly compound formulations of nicosulfuron and atrazine. This type of herbicide has certain requirements for corn varieties, and the order of safety is dent hard corn > popcorn > sweet corn. Generally, corn is sensitive to this herbicide before the 2-leaf stage and after the 10-leaf stage. Among such herbicides, the Jinyucheng, White Caoku, Yucheng and Jinyusan series products represent the highest level in this industry at present.
MCPA-sodium. MCPA-sodium should be applied at the 2-4 leaf stage of corn. Corn inbred lines are sensitive, so a sensitivity test on corn varieties should be conducted before application, and the application period should be strictly controlled. Jinernongmu is a product that combines MCPA-sodium with nicosulfuron, and it can eradicate grass weeds and broadleaf weeds in corn fields in one application, especially achieving complete root elimination of the difficult-to-control weed nutsedge.
Mesotrione. Mesotrione is a new type of herbicide for corn fields and can be used for pre-emergence treatment or foliar treatment. It is safe for the current corn crop and subsequent crops, but sweet corn, waxy corn, popcorn and corn inbred lines are relatively sensitive and may suffer phytotoxicity. Jin'er Baicaotong, a compound product of mesotrione and atrazine, acts quickly and is safe for corn and subsequent crops.
With the adjustment of the corn planting structure, sweet corn, waxy corn and popcorn also occupy a certain planting area. These varieties have poorer herbicide tolerance, so special attention should be paid when selecting herbicides. Herbicide varieties not registered for use on the above varieties should be tested before use.
Nicosulfuron and its compound formulations. Nicosulfuron is a post-emergence herbicide used in corn fields, and its effect on broadleaf weeds is not ideal. At present, the most widely used post-emergence herbicides in corn fields on the market are mostly compound formulations of nicosulfuron and atrazine. This type of herbicide has certain requirements for corn varieties, and the order of safety is dent hard corn > popcorn > sweet corn. Generally, corn is sensitive to this herbicide before the 2-leaf stage and after the 10-leaf stage. Among such herbicides, the Jinyucheng, White Caoku, Yucheng and Jinyusan series products represent the highest level in this industry at present.
MCPA-sodium. MCPA-sodium should be applied at the 2-4 leaf stage of corn. Corn inbred lines are sensitive, so a sensitivity test on corn varieties should be conducted before application, and the application period should be strictly controlled. Jinernongmu is a product that combines MCPA-sodium with nicosulfuron, and it can eradicate grass weeds and broadleaf weeds in corn fields in one application, especially achieving complete root elimination of the difficult-to-control weed nutsedge.
Mesotrione. Mesotrione is a new type of herbicide for corn fields and can be used for pre-emergence treatment or foliar treatment. It is safe for the current corn crop and subsequent crops, but sweet corn, waxy corn, popcorn and corn inbred lines are relatively sensitive and may suffer phytotoxicity. Jin'er Baicaotong, a compound product of mesotrione and atrazine, acts quickly and is safe for corn and subsequent crops.
With the adjustment of the corn planting structure, sweet corn, waxy corn and popcorn also occupy a certain planting area. These varieties have poorer herbicide tolerance, so special attention should be paid when selecting herbicides. Herbicide varieties not registered for use on the above varieties should be tested before use.