How to deal with corn weeds
Grass damage is one of the factors restricting the high and stable production of corn. The annual weeds in corn fields in China have an area of ​​more than 350 million mu, which can cause corn loss of about 9.5 billion kilograms per year. In view of the type of weed occurrence and its hazard characteristics, we should adopt a comprehensive control strategy based on agricultural control based on “blocking and killing†chemical weeding, with artificial and mechanical control as a supplement, and coordinated measures to effectively control corn fields. Harm of grass. Before weeding, weeding and weeding. Before the corn planting, the weeds germinate more land, and we can use herbicides such as paraquat, glyphosate and glufosinate to spray and weed. After weeding, soil weeding and weed control was promoted using 90%, 99% acetochlor EC, 72%, 96% metolachlor, 90% atrazine water dispersible granules, and 38% atrazine suspension. 25% thifensulfuron wettable powder, 87.5% 2,4-D isooctyl ester EC, 57% 2,4-D butyl EC, 90% acetochlor or 96% metolachlor EC 75 % thifensulfuron, 67% isopropanal desflurane suspension, 40% acetamidine emulsifiable concentrate, 50% oxazinone acetochlor EC and other agents, sprayed on the water evenly before corn seeding. Post-emergence corn weed stems and leaves spray weeding promote the use of 30% befezazoxanone suspension, 10% mesotrione suspension, 4%, 6%, 8% Nicosulfuron suspension, 90% Atrazine Water Dispersible Granules, 38% Atrazine Suspension, 25% Caprylolic Acid Bromide, Propranolazine, Nicosazine, Attilazine and Fomexazone, Niacin Long mixed with octanoyl benzonitrile, in the 3 to 5 leaf stage of corn, weeds 2 to 4 leaf stage, spray evenly on the water. Nicosulfuron can not be used in sweet corn, waxy corn and popcorn fields, and can not be mixed with organic phosphorus pesticides. Organic phosphorus pesticides can not be used within 7 days before and after treatment. Directional weed control in the middle and late stages can be used to control the weed germination in the middle and late stages of corn growth. The 20% paraquat aqueous solution and 25% sulfosulfuron-methyl water dispersible granules can be used to perform directed directional spraying between corns. Protective cover should be added to avoid splashing on corn plants and causing phytotoxicity. In addition, two special points need to be taken care of. First, the use of vegetable oil-based spray adjuvants for the rational use of vegetable oil-based spray adjuvants can increase the herbicidal effect, reduce the herbicide dosage, reduce the amount of spray water, reduce droplet drift, and ensure crop safety. . Secondly, according to the control of weeds and corn fields around the corn field, there are many types of weeds and large amounts of weeds. There are both grasses and sedges and broad-leaved weeds, both annual and weedy weeds, and perennials. The characteristics of weeds. It can be used to cultivate leguminous crops to suppress the occurrence of weeds; artificial removal can also be used, or glyphosate, paraquat, glufosinate and other herbicides can be used for control. Gauze Sheet,100%Cotton Gauze Sheet,Medical Gauze Swabs Sheet,Disposable Gauze Swabs Shaoxing Weijian Medical Supplies Co.,Ltd. , https://www.wetourmedical.com