1. Germination accelerating: put the seed potato in the dark environment of about 20℃ to accelerate germination 10 ~ 15 days (spraying 500 times of EM bacterial liquid diluent once before germination accelerating, and then putting it in the dark environment to accelerate germination, which can improve the germination rate of the seed potato). When the bud length is 0.5 ~ 65438+,
2. Bud cutting: 2-3 days before sowing, start cutting bud blocks, each bud block has at least one bud, and each bud block should be cut into a triangle of about 20g. The cut buds can be sprayed with 500 times diluted EM bacteria solution once, and then dried in the shade, which can effectively prevent the buds from getting sick and rotting and improve the survival rate of the buds.
3. Soil preparation and fertilization: The large application of fertilizers such as ammonium bicarbonate is the main factor that causes potato rot, affects potato quality and commodity rate, and easily causes soil hardening. Therefore, before land leveling, 500 ~ 1000 kg of organic fertilizer fermented by EM bacteria should be applied to each mu of land, and then the land should be leveled so that the EM organic fertilizer can be evenly mixed with the soil. After the land is leveled, the cut buds can be planted on the seedbed. This not only improves the soil, but also improves the quality and yield of potatoes.
4. foliar spraying: spraying EM bacteria with 500 ~ 1000 times dilution at the seedling stage, growth stage and bud stage of potato can improve the photosynthesis of leaves and the disease resistance of potato, promote nutrient accumulation and tuber swelling, and improve the yield and quality.
The application method of EM bacteria in potato cultivation is also suitable for the cultivation and production of other potato crops, and should be adjusted accordingly according to the actual situation.