Effective management of corn crops becomes crucial under high temperature conditions. Proper watering, fertilization, and preventive measures can significantly enhance both yield and quality while preventing root rot and seed deterioration.

1. Watering Techniques

Managing water efficiently is paramount during hot weather:

  • Timely Watering: Water early in the morning or late in the evening to minimize evaporation losses during peak daytime temperatures.
  • Deep Watering: Ensure water penetrates deep into the soil to promote healthy root growth. Consider utilizing drip irrigation to maximize soil and root water absorption.
  • Soil Moisture Monitoring: Use soil moisture meters or manual checks to adjust watering frequency and volume as needed. Initially, newly planted corn should be watered thoroughly to encourage rapid root establishment.

2. Preventing Root Rot and Seed Deterioration

Hot and humid conditions can predispose corn to root rot and seed issues. Take proactive measures to prevent these problems:

  • Good Drainage: Maintain adequate field drainage to prevent waterlogging, which can lead to root rot.
  • Seed Treatment: Use fungicidal seed treatments to enhance disease resistance. For instance, using a 25% fludioxonil seed dressing, apply 100 mL per kilogram of corn seeds before planting to effectively prevent root rot and seed deterioration.
  • Ventilation: Ensure proper field ventilation during hot and humid weather to reduce air humidity and minimize fungal disease incidence.

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