    At present, the potato crop is entering its flowering and fruiting stage, which is a crucial period for field management. It's essential to focus on water and fertilizer management, perform timely soil cultivation, weeding, and disease prevention. Implementing these measures can significantly contribute to achieving high yields.
Fertilizer Management
   Fields with adequate base fertilizers and strong plant growth can benefit from foliar sprays of urea (3 kg per acre), potassium dihydrogen phosphate (4 kg), and 50 kg of brown sugar dissolved in water. Alternatively, using Tianda 2116 plant growth nutrient solution can enhance plant resilience and promote healthy development. For weak or yellowing plants, apply 10 kg of urea, 10 kg of potassium sulfate, and 20-25 kg of phosphorus, combined with irrigation and foliar application of Tianda 2116.
Soil Cultivation and Weeding
   Timely soil cultivation and weeding are important to prevent weeds from competing with potatoes. This helps improve soil structure, increase permeability, raise soil temperature, and support better tuber development. Additionally, it's vital to avoid exposing potato tubers to sunlight, as this can lead to greening and reduce quality.
Preventing Excessive Growth
   Excessive vine growth can negatively impact tuber development by reducing light penetration and increasing competition for nutrients. To control this, use growth inhibitors such as paclobutrazol or chlormequat. Apply 15% wettable powder at 50–80 grams per acre, mixed with 30–50 kg of water, or spray 1–6 mg/kg of chlormequat. Repeat every 7–10 days for best results. Removing diseased and weak branches also improves air circulation and reduces disease risk.
   Disease and Pest Control
   Late blight appears as irregular brown spots on leaves with white fungal growth on the underside. To manage this, remove infected plants and bury them deeply. Treat surrounding areas with lime and spray 58% metalaxyl manganese zinc at 77–120 g/acre. For aphid control, use 2.5% imidacloprid at 40–60 ml/acre or 4.5% beta-cypermethrin at 5–27 g/acre, diluted in 30–50 kg of water. Alternate chemicals and repeat 2–3 times for effective control.
   Proper field management during the middle and late stages of potato growth is crucial. Early action and preventive measures are key to ensuring a successful harvest.  Â
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