How to use chemical weeding to grow corn in summer?

How to use chemical weeding to grow corn in summer? Please refer to the following methods for weeding when planting corn in summer: first, according to the investigation of the county plant protection station, the main weeds in summer corn fields in our county are: field spiral flower, sophora officinalis, Rhizoma Scutellariae, Fructus Scutellariae, Portulaca oleracea, Setaria angustifolia, Scutellaria przewalskii, etc. 2. Technical plan for prevention and control: 1. After seedling treatment, the whole field was sprayed evenly with nicotinthiazide 100ml and water more than 30kg per mu after the weeds came out in the 5-leaf stage and before the 5-leaf stage. 2. When spraying insecticidal herbicide after 7 leaves of corn between rows, in order to prevent drug damage, the use of post-seedling herbicides must be stopped, and insecticidal herbicides should be selected to control weeds. It can be sprayed with 20% paraquat 200ml/ mu or 20 g 100-120ml/ mu without trace. Matters needing attention 1. Choose safe and effective herbicides and use them in strict accordance with the dose instructions. 2. Avoid high temperature when spraying, stop spraying when the temperature exceeds 30 degrees, prevent drug damage, choose sunny and windless weather as far as possible, spray before 9: 00 a. M. or after 4: 00 p. M. 3. When spraying, you should use enough water, the amount of water per mu is not less than 30kg, choose a manual sprayer as far as possible, spray the liquid evenly on the leaves of weeds, and pay attention to avoid corn heart leaves. 4. when spraying, it is required that the soil moisture in the corn field is good, and when the soil is dry, the soil moisture must be artificially made (irrigation), and then herbicides must be sprayed to prevent the damage caused by spraying when the soil is dry. 5. The sprayer should be cleaned thoroughly after spraying herbicide so as not to cause drug damage to other crops. The growth period of summer corn is from June to September, which coincides with the high temperature and rainy season, which is beneficial to the occurrence of weeds in the field. Once the appropriate period of control is missed, it is very easy to form grass famine and seriously affect the growth of maize. Chemical weeding is an important measure to control the harm of weeds in corn field and increase maize yield. In order to ensure the high yield and harvest of summer corn in our county, the summer corn planting area is required to do a good job of chemical weeding of summer corn. Click to get more corn planting techniques click to get more food crop planting techniques