How can field management be done well during corn cultivation?
How should corn be managed when planting? Please give suggestions. With excessive rain, corn diseases and weed problems will be more severe than in previous years. Therefore, the following suggestions are offered for this year's corn planting and management. 1. Strengthen seedling-stage disease control. Because of frequent rain, high soil moisture, and lower-than-usual soil temperature, corn emergence will be relatively delayed, increasing the possibility of seed rot and seedling death. The focus of control is seed coating. You can choose Shileshi 2.5% water suspension concentrate. Usage: one bag of Shileshi (10 ml), add 100 ml to 150 ml of water, pour into an enamel basin or plastic bag, then add 3 kg to 5 kg of corn seed, stir forcefully or shake evenly so that the liquid medicine evenly coats the seed surface. The coated seed can be sown promptly without drying. You can also add 10 ml of phoxim or isofenphos-methyl to the liquid to also control underground pests.
How should corn be managed when planting? Please give suggestions.
With excessive rain, corn diseases and weed problems will be more severe than in previous years. Therefore, the following suggestions are offered for this year's corn planting and management.
1. Strengthen seedling-stage disease control. Because of frequent rain, high soil moisture, and lower-than-usual soil temperature, corn emergence will be relatively delayed, increasing the possibility of seed rot and seedling death. The focus of control is seed coating. You can choose Shileshi 2.5% water suspension concentrate. Usage: one bag of Shileshi (10 ml), add 100 ml to 150 ml of water, pour into an enamel basin or plastic bag, then add 3 kg to 5 kg of corn seed, stir forcefully or shake evenly so that the liquid medicine evenly coats the seed surface. The coated seed can be sown promptly without drying. You can also add 10 ml of phoxim or isofenphos-methyl to the liquid to also control underground pests.
2. Weed control technology. Summer is rainy and weed problems are severe, and manual weeding is not favorable, so chemical weeding is the first choice this summer. According to different corn sowing methods, the following weed control methods are recommended. For corn in wheat intercropping fields, it is recommended to first clear stubble, remove weeds that have already emerged in the field, and then spray pre-emergence herbicides such as Du'a mixture, Yiyoushui, Yumibao, Yucaoping, and Qiaochang Yuchangsi. If there is not enough time to clear stubble or to save labor, after corn grows to 4 leaves, you can choose 25% Gramoxone aqueous solution for directed spray weeding. According to the amount and size of weeds in the field, use 125 ml to 175 ml of Gramoxone per mu, mixed with 40 kg to 60 kg of water. When spraying, install a protective cover on the nozzle and keep the nozzle as low as possible to avoid spraying the liquid onto the corn. Direct-seeded corn after wheat in wheat fields. After wheat harvest, corn is sown, and before sowing there are already many weeds in the field. The "one-kill one-seal" weed control technique can be used. That is, after corn sowing and before emergence, use 150 ml to 200 ml per mu of Du'a mixture, Yiyoushui, Yumibao, Yucaoping, or Qiaochang Yuchangsi, mixed with 50 ml to 80 ml of 25% Gramoxone aqueous solution, and spray on the ground with 40 kg to 60 kg of water. Gramoxone can kill various weeds that have already emerged, and Du'a mixture or Yiyoushui can effectively control the emergence of weeds that have not yet emerged.
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