How to manage the grape nursery?

1. water once after cutting, and then water once every 7 ~ 10 days. After the seedlings survive, they can be properly watered according to the weather conditions. From late July to early August, do not water or water less to help the branches mature.

2. Topdressing: topdressing effective nitrogen fertilizer for the first time half a month after seedling germination; The second time, when the seedling height is 30 ~ 40 cm, topdressing nitrogen fertilizer; For the third time, phosphorus and potassium fertilizer can be applied once in August. Combined with spraying, 0.3% potassium dihydrogen phosphate can be sprayed on the leaves.

3. Weeding in intertillage, topdressing and watering, weeding in time, the depth is shallow first and then deep.

4. When the height of vine management seedlings is more than 30 cm, insert bamboo poles to make vines grow upright, tie vines, pick cores, remove secondary shoots and tendrils in time after being put on shelves. When the main tip is 70 cm long, the core will be removed, and those with insufficient length will be removed in late August.

5. Pest control: use poison bait to trap and kill underground pests or scarabs, and capture them manually. Spraying 180 times lime and a small amount of Bordeaux solution for 3-4 times in July-August to prevent downy mildew or black pox.

The seedlings were taken out from the nursery in late June 10 to early June 1 10. After germination, cut off the floating roots, cut off the wounds on the thick roots, and leave 4 ~ 8 buds on the main vine for short cutting.

7. Heel In the dug heel pit, bury the roots of the seedlings tightly to maintain the proper humidity of the soil and prevent air drying.

8. Packaged and shipped seedlings must be quarantined and disinfected, soaked in 5-degree sulfur mixture 1 ~ 3 minutes, dried, and filled with wet sawdust and wet grass. Wrap in plastic bags, sacks, straw bags, etc. Fasten it outside.