Techniques of Potato Bud planting

Potato bud planting is according to the characteristics of potato with multiple bud eyes, so that each bud eye seedlings transplanting, to achieve multi-propagation, rapid propagation, to ensure the species nature of the variety. The propagation of bud planting technique can effectively prevent the occurrence of potato ring rot, increase the yield and starch content, put it on the market earlier, and save the amount of seed potato.

I. selection of species

The healthy and disease-free seed potato with full dormancy period was selected as the sprouting material.

II. Site selection

Select the land with leeward to the sun and good moisture, if the greenhouse cultivation needs indoor disinfection, use 1000 times liquid of 90% crystal trichlorfon to spray the ground and walls, or use chlorothalonil aerosol 20000g / 667m 2, divide it into 3-5 parts evenly in the shed, light it with dark fire at one end, fumigate the closed shed for 12 hours after producing thick smoke, and put it in the air in the morning of the next day.

Third, bud rearing techniques

1. Budding time

Generally speaking, the suitable time for bud breeding is in the middle of April.

two。 Budding area

Ditch length depends on the transplanting area, 1.5-2 meters wide, pit depth 30-40 cm, and 10 cm thick fully mature horse dung, suitable for seedbed. Then lay a layer of 10 cm thick field ripe soil, put a layer of potatoes, plant spacing of 3-6 cm, row spacing. 8-10 cm, put the bud eyes up, and then spread a layer of 20 cm thick field mature soil, raw soil should not be used as seedling bed soil. If the field plot is used to grow buds, a small arch shed of 1 meter should be built, and the greenhouse temperature should be kept at 25 ℃ during the day and 7-8 ℃ at night.

3. Seed quantity

Every 667 meters 2 need 819 meters 2 plots, select a variety of potatoes: every 667 meters 2 kinds of potatoes need 70-80 kilograms, seed potatoes with few eyes need 80-90 kilograms per 667 meters.

IV. Transplanting techniques

1. Select buds

Select about 20 cm long, stout, complete and disease-free buds, with whisker roots on the buds to eliminate thin, discolored bud tips, dry or easily broken buds.

two。 Transplant

Transplanting time is a little later than ordinary cut planting, a week after the late frost period, generally transplanting in the middle of May in the mountain area. The transplanting seedlings are dipped in the roots with chemicals. When transplanting seedlings in sunny and windless weather, the row spacing is 69cm 70 cm, the plant spacing is 25-30 cm, trench is opened, rotten organic fertilizer and phosphorus and potassium fertilizer are applied in the ditch, horse manure and excessive nitrogen fertilizer are strictly forbidden to avoid sprouting. The selected buds are planted in the field in the shortest possible time so as not to lose water and water them in time. Watering according to the situation of slow seedling.

3. Move buds

The buds can be moved twice at one time, and the remaining seed potatoes can be cut into pieces for planting.