Since September, peppers grown in open fields often experience early plant decline due to insufficient water and nutrients in the later growth stages. This usually leads to yellowing leaves and severe leaf drop, which hampers photosynthesis and results in more unripe green fruits, ultimately affecting overall yield. At this stage, growers should take proactive measures to maintain plant health, prevent decay, encourage fruit ripening, and ensure a successful harvest.
First, it's essential to manage irrigation effectively. Keep a close eye on weather forecasts and water the plants lightly when necessary—either during dry spells or after rainfall. The goal is to avoid overwatering and keep the soil surface dry to prevent root diseases. Second, pay special attention to late-stage fertilization. Although the peak nutrient demand has passed, it's still crucial to continue feeding the plants. Apply fertilizer in smaller quantities more frequently rather than in large doses. For each mu of land, mix 10 kg of urea with 15 kg of specialized compound fertilizer and apply it through irrigation. Make sure to spread it evenly across the field, avoiding direct contact with leaves and roots to prevent fertilizer burn.
In fields where premature aging has already occurred, it's important to combine topdressing with foliar sprays. You can use solutions such as 0.1% urea or 0.2% to 0.3% potassium dihydrogen phosphate, along with beneficial microorganisms. These treatments help restore plant vitality and improve the condition caused by nutrient deficiency. By taking these steps, farmers can significantly enhance the health of their pepper plants and increase their chances of a better yield at the end of the season.
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