Cotton remains the key driver of rural economic growth in our county. To ensure the quality and efficiency of cotton production, and to enhance the grade and market competitiveness of our cotton, it is crucial to apply ethephon at the right time and in the right amount, taking into account weather changes. According to **China Pesticide Network**, here are some important details to consider:
1. **Timing for Ethephon Application**: Based on meteorological forecasts, the first frost in our county is expected around September 28, which is slightly earlier than last year. Therefore, the optimal time to spray ethephon on cotton is approximately September 10. Spraying too early can lead to shorter cotton fibers and an increase in alfalfa seed production, both of which negatively impact the quality and yield of the crop.
2. **Proper Use of Ethephon**: It's essential to avoid overuse of **pesticides** in current farming practices. In line with field experience, a typical application involves using 250–300 grams of 40% ethephon per acre mixed with 30 kg of water. The spraying should be done evenly on sunny days to maximize effectiveness and minimize environmental impact.
By following these guidelines, farmers can ensure better results from their cotton crops, contributing to both higher yields and improved market value. It’s also recommended to monitor local weather conditions closely and adjust application schedules accordingly. With careful planning and proper execution, the use of ethephon can play a vital role in supporting sustainable and profitable cotton farming in our region.
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