Due to delayed corn sowing or natural disasters like flooding during the early growth stages, plants may experience stunted development and delayed maturity. To ensure timely harvesting, several ripening methods can be applied to accelerate the process and achieve an earlier or more efficient harvest. The choice of method depends on specific field conditions and crop status.
1. **Top-dressing Technique**: During the silking stage, applying 10 kg of ammonium nitrate per acre or spraying 3% superphosphate solution on the leaves can help promote faster maturation. If silking is delayed, manually removing male tassels can reduce nutrient competition and increase leaf temperature, thereby speeding up the process. This method typically advances silking by 2 to 3 days.
2. **Leaf Removal and Drying Method**: In the late filling stage, when the kernels have reached their normal size, peeling back the husk leaves exposes the grains to air and sunlight, promoting dehydration. This technique can advance ripening by 4 to 5 days and improve yield by 6% to 15% compared to direct harvesting at the same time.
3. **Whole-Plant Drying Method**: Cutting the stalks and laying them in open areas (avoiding pile-up) allows the leaves to dry naturally before the ears are harvested and threshed. This method can increase the overall weight of the grain by about 20%. Additionally, during the filling period, using a hoe or plow to gently till the soil around the plant rows can also enhance ripening.
These methods provide practical solutions for farmers facing unfavorable growing conditions, helping to maximize yield and ensure timely harvests. By implementing these techniques, growers can better manage their crops and adapt to unpredictable weather patterns.
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