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Potatoes Case
Sep 27,2025
Potato Phenological Stages and Management Guidelines
The phenological stages of potatoes can be divided into five periods: sprouting stage, seedling stage, tuber formation stage, tuber enlargement stage, and maturity stage. These stages typically last 20–30 days for sprouting, 15–20 days for seedling growth, 25–30 days for tuber formation, 30–50 days for tuber enlargement, and 10–20 days for maturity.
| Phase | Key Management Points |
| Sprouting Stage | 1. Select virus-free seed potatoes, discard diseased, rotten, or deformed tubers, and disinfect cutting tools. 2. Select appropriate fungicides, insecticides, and plant growth regulators for seed treatment and furrow spraying. |
| Seedling Stage | 1. Water and apply fertilizer promptly after emergence to promote root and foliage growth. |
| Tuber Formation Stage | 1. Implement growth regulation to prevent excessive vegetative growth and promote tuber initiation. |
| Tuber Enlargement Stage | 1. Intensify pest and disease management to prevent premature foliage senescence and extend the functional period of stems and leaves; 2. Ensure consistent moisture supply to avoid sudden dryness or wetness, promoting tuber development. |
| Maturation Stage | 1. Implement effective pest and disease control to slow root, stem, and leaf senescence. |
Pain Points and Solutions
Solutions
Potato Seedling Strengthening Program
| Application Period | Application Method | Recommended Dosage |
| Pre-planting seed treatment | Dry-mix evenly with potato tubers | Jinbang 30-70g + 3% Chynocin 50g Dry-mix evenly with potato tubers Pre-planting seed treatment + 70% Thiram 100g + Talcum powder 5kg mixed with 200kg potato tubers |
Note: The above program is for reference only. Regions should adjust application timing and dosage based on specific varieties and climatic conditions.
Growth Stage Products
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Vegetables
The phenological stages of potatoes can be divided into five periods: sprouting stage, seedling stage, tuber formation stage, tuber enlargement stage, and maturity stage. These stages typically last 20–30 days for sprouting, 15–20 days for seedling growth, 25–30 days for tuber formation, 30–50 days for tuber enlargement, and 10–20 days for maturity.
Sep 27,2025
Grain crops
The optimal temperature during sowing is crucial for cotton germination, with higher temperatures accelerating the process. However, excessive heat hinders early seedling growth, necessitating temperature control around 14°C at a 5-centimeter soil depth. Cotton exhibits a preference for warmer conditions, with a minimum germination threshold of 10.5°C, an optimal range of 28-30°C, and a maximum germination temperature of 40-45°C. Within the optimal temperature range, both germination speed and success rate significantly improve. For instance, germination takes approximately 11 days at 12°C, 7 days at 13°C, and only 2 days at 16°C. Under high temperatures of 35°C, cotton seeds can sprout within just 8 hours.
Sep 26,2025
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The need for specialized plant growth regulators