How to control corn ear?

First, choose high-quality varieties based on local conditions. Selecting the right corn variety is crucial for ensuring good yield and quality. It should be adapted to the local climate, soil type, and farming practices.

Second, implement scientific water and fertilizer management. Corn has its highest water demand during the tasseling stage, which is also the most sensitive period for water. Soil moisture should be maintained at 70% to 80% during this time. If water is insufficient, it's important to irrigate promptly to ensure balanced development of male and female ears and reduce the occurrence of multiple ears. Fertilizer application should be adjusted according to the variety, planting area, method, and growth stage. For medium fertility soils, apply 60 kg of compound fertilizer per mu as a base fertilizer. When the plant has 3 to 4 leaves, apply 10 kg of urea or 25 kg of ammonium bicarbonate per mu. At the 12 to 13 leaf stage, apply 30 kg of urea or 70 kg of ammonium bicarbonate per mu to support healthy growth.

Third, sow at the right time and plant at an appropriate density. The ideal sowing period is when the ground temperature at 15 cm below the surface stabilizes at 12°C. For general varieties, the recommended plant density is 3,200 to 3,500 plants per mu in monoculture, and 2,500 to 2,800 in intercropping. For compact corn varieties, the density should be 3,500 to 3,800 per mu in monoculture, and 3,000 to 3,500 in intercropping. Proper spacing ensures adequate sunlight, air circulation, and nutrient availability for each plant.

Fourth, focus on field management. Regular cultivation and weeding help keep the soil loose and promote root development. If multiple tassels appear, remove them promptly, leaving only one or two to prevent unnecessary nutrient consumption. This ensures that nutrients are directed towards the main ear. Additionally, monitor and control pests, diseases, and weeds. Pay special attention to leaf spot disease, as it can significantly affect yield and quality. Early detection and timely treatment are essential for maintaining healthy crops.

By following these practices, farmers can improve corn productivity, enhance grain quality, and achieve more sustainable agricultural outcomes.

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