Longshu No.7

Key Cultivation Techniques
1. Select and use superior virus-free potato seeds, accelerating germination before seeding, and seeding in the first and middle 10-day of April.
2. Thin planting appropriately, planting density for each mu should be 3500~4000 plants, or 2500~3000 plants for poor dry land.
3. Deep base fertilizer application and early additional fertilizer application, and keep a proper amount of nitrogen fertilizer.
4. Timely earth up and make high ridge.
5. Cut seedlings before harvest for the purpose of potato skin aging.
6. Timely prevent late blight.