Baldness in corn, also known as bare tips or unfilled ears, is a common issue that occurs when the top of the ear fails to develop properly, leading to poor grain filling. This condition significantly reduces yield and can be caused by various factors. Understanding these causes and implementing effective control measures is essential for improving corn production.
 The main causes of corn baldness include nutrient deficiencies, such as low levels of phosphorus and potassium, which affect cell division and pollen development. Poor pollination due to delayed silking or insufficient pollen availability can also lead to this problem. Additionally, environmental stress like drought during the flowering stage, overcrowding, and lack of micronutrients like boron and zinc can contribute to the issue. Soil conditions, improper planting density, and weak seedlings due to uneven light and water distribution are other contributing factors.
 To reduce the occurrence of corn baldness, several management strategies can be applied. First, selecting high-quality, disease-resistant seeds suited to local conditions is crucial. Proper seed treatment, such as air drying and coating, helps improve germination and plant vigor. Planting density should be adjusted based on soil fertility—higher density in poorer soils and lower in more fertile areas. Using wide and narrow row spacing ensures better light and nutrient distribution, reducing the risk of weak growth.
 Fertilization plays a key role in preventing baldness. A balanced application of nitrogen, phosphorus, and potassium, along with micro-nutrients like zinc and boron, is recommended. For low-fertility fields, additional top dressing may be necessary, but care must be taken not to over-apply and delay maturity. Water management is also important—especially during critical periods like tasseling and silking, where moisture levels directly impact pollination success. Irrigation should be timely, especially when soil moisture drops below 80% of field capacity.
 Another effective measure is artificial pollination. During the flowering period, manually shaking the tassels or using a rope method to transfer pollen can greatly improve fertilization rates. This should be done every 2–3 days, especially when natural pollination is inadequate. Spraying zinc sulfate solution on the leaves during the jointing stage can also enhance pollen viability and overall plant health.
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