What are the precautions for sowing summer corn?
What should be noted when sowing summer corn? Please give some guidance. When sowing summer corn, note the following: 1. Delay sowing appropriately. The best sowing period for summer corn is from June 20 to 30, which avoids high temperatures during tasseling and helps achieve high yields. Corn should not be planted in successive cropping. After sowing, use one bottle of Yunongsi per mu, diluted in 100 jin of water, and spray to kill weeds. ...
What should be noted when sowing summer corn? Please give some guidance.
When sowing summer corn, note the following points:
1. Delay sowing appropriately. The best sowing period for summer corn is from June 20 to 30, which avoids high temperatures during tasseling and helps achieve high yields. Corn should not be planted in successive cropping. After sowing, use one bottle of Yunongsi per mu, diluted in 100 jin of water, and spray to kill weeds.
2. Seed selection and soaking. Choose varieties with strong drought tolerance (such as Dan 2, Shandan 902, etc.). Sun-dry first, then soak. Soak the seeds in 55°C warm water for 8 hours, dry them in the shade, and then sow, striving for full emergence in one sowing.
3. Check seedlings and fill gaps. Transplant to fill gaps at the 3-leaf stage, thin to final stand at the 5-leaf stage, leaving one seedling per hole.
4. Fertilizer management. Apply 50 kg of compound fertilizer per mu as base fertilizer, plus 1 kg of zinc fertilizer. After plowing, broadcast the fertilizer and then harrow finely to prepare the beds. It is strictly forbidden for fertilizer to be in the same hole as seeds, as this affects emergence. Topdress at the 6-leaf stage with 15 to 20 kg of urea per mu, applied in holes and covered with soil.
5. Control corn borers. At the 9-leaf stage (and the large trumpet stage), use 1 kg of Yumichongjing per mu, mixed with 15 kg of fine moist soil, and place it in the whorl to control corn borers.
6. Spray Fengle Shenglu. At the large trumpet stage, spray per mu using 2 generations of Fengle Shenglu + 1 liang of potassium dihydrogen phosphate + 5 liang of urea diluted in 50 kg of water. This can reduce plant height, increase stalk thickness, reduce bald tips, improve seed-setting rate, and increase yield.
Click to get more corn planting techniques
Click to get more food crop planting techniques